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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-31 16:37:32 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-31 16:37:32 (GMT)
commite2a0f813e0d53014b78aae76f0359c8a41f05eeb (patch)
tree08cbd30d7e407e8d1009338aeda56e895afb6d9d /arch/powerpc
parente30b82bbe098d9514ed0e9b5ec372daf7429e0f7 (diff)
parentb73117c49364551ff789db7c424a115ac5b77850 (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more KVM updates from Paolo Bonzini: "Second batch of KVM updates. Some minor x86 fixes, two s390 guest features that need some handling in the host, and all the PPC changes. The PPC changes include support for little-endian guests and enablement for new POWER8 features" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (45 commits) x86, kvm: correctly access the KVM_CPUID_FEATURES leaf at 0x40000101 x86, kvm: cache the base of the KVM cpuid leaves kvm: x86: move KVM_CAP_HYPERV_TIME outside #ifdef KVM: PPC: Book3S PR: Cope with doorbell interrupts KVM: PPC: Book3S HV: Add software abort codes for transactional memory KVM: PPC: Book3S HV: Add new state for transactional memory powerpc/Kconfig: Make TM select VSX and VMX KVM: PPC: Book3S HV: Basic little-endian guest support KVM: PPC: Book3S HV: Add support for DABRX register on POWER7 KVM: PPC: Book3S HV: Prepare for host using hypervisor doorbells KVM: PPC: Book3S HV: Handle new LPCR bits on POWER8 KVM: PPC: Book3S HV: Handle guest using doorbells for IPIs KVM: PPC: Book3S HV: Consolidate code that checks reason for wake from nap KVM: PPC: Book3S HV: Implement architecture compatibility modes for POWER8 KVM: PPC: Book3S HV: Add handler for HV facility unavailable KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8 KVM: PPC: Book3S HV: Context-switch new POWER8 SPRs KVM: PPC: Book3S HV: Align physical and virtual CPU thread numbers KVM: PPC: Book3S HV: Don't set DABR on POWER8 kvm/ppc: IRQ disabling cleanup ...
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Kconfig2
-rw-r--r--arch/powerpc/include/asm/epapr_hcalls.h111
-rw-r--r--arch/powerpc/include/asm/kvm_asm.h3
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h27
-rw-r--r--arch/powerpc/include/asm/kvm_book3s_asm.h1
-rw-r--r--arch/powerpc/include/asm/kvm_booke.h6
-rw-r--r--arch/powerpc/include/asm/kvm_host.h61
-rw-r--r--arch/powerpc/include/asm/kvm_para.h80
-rw-r--r--arch/powerpc/include/asm/kvm_ppc.h13
-rw-r--r--arch/powerpc/include/asm/pgtable.h21
-rw-r--r--arch/powerpc/include/asm/reg.h43
-rw-r--r--arch/powerpc/include/asm/switch_to.h2
-rw-r--r--arch/powerpc/include/uapi/asm/kvm.h3
-rw-r--r--arch/powerpc/include/uapi/asm/tm.h2
-rw-r--r--arch/powerpc/kernel/asm-offsets.c50
-rw-r--r--arch/powerpc/kernel/kvm.c41
-rw-r--r--arch/powerpc/kvm/44x.c4
-rw-r--r--arch/powerpc/kvm/book3s.c46
-rw-r--r--arch/powerpc/kvm/book3s_32_mmu_host.c5
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_hv.c4
-rw-r--r--arch/powerpc/kvm/book3s_exports.c4
-rw-r--r--arch/powerpc/kvm/book3s_hv.c319
-rw-r--r--arch/powerpc/kvm/book3s_hv_interrupts.S8
-rw-r--r--arch/powerpc/kvm/book3s_hv_rm_mmu.c8
-rw-r--r--arch/powerpc/kvm/book3s_hv_rmhandlers.S1191
-rw-r--r--arch/powerpc/kvm/book3s_paired_singles.c169
-rw-r--r--arch/powerpc/kvm/book3s_pr.c155
-rw-r--r--arch/powerpc/kvm/book3s_rmhandlers.S47
-rw-r--r--arch/powerpc/kvm/book3s_segment.S2
-rw-r--r--arch/powerpc/kvm/book3s_xics.c4
-rw-r--r--arch/powerpc/kvm/booke.c44
-rw-r--r--arch/powerpc/kvm/booke.h5
-rw-r--r--arch/powerpc/kvm/bookehv_interrupts.S11
-rw-r--r--arch/powerpc/kvm/e500.c4
-rw-r--r--arch/powerpc/kvm/e500.h8
-rw-r--r--arch/powerpc/kvm/e500_mmu.c2
-rw-r--r--arch/powerpc/kvm/e500_mmu_host.c59
-rw-r--r--arch/powerpc/kvm/e500mc.c4
-rw-r--r--arch/powerpc/kvm/emulate.c1
-rw-r--r--arch/powerpc/kvm/mpic.c1
-rw-r--r--arch/powerpc/kvm/powerpc.c58
41 files changed, 1563 insertions, 1066 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a5e5d2e..957bf34 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -342,6 +342,8 @@ config PPC_TRANSACTIONAL_MEM
bool "Transactional Memory support for POWERPC"
depends on PPC_BOOK3S_64
depends on SMP
+ select ALTIVEC
+ select VSX
default n
---help---
Support user-mode Transactional Memory on POWERPC.
diff --git a/arch/powerpc/include/asm/epapr_hcalls.h b/arch/powerpc/include/asm/epapr_hcalls.h
index 86b0ac7..334459a 100644
--- a/arch/powerpc/include/asm/epapr_hcalls.h
+++ b/arch/powerpc/include/asm/epapr_hcalls.h
@@ -460,5 +460,116 @@ static inline unsigned int ev_idle(void)
return r3;
}
+
+#ifdef CONFIG_EPAPR_PARAVIRT
+static inline unsigned long epapr_hypercall(unsigned long *in,
+ unsigned long *out,
+ unsigned long nr)
+{
+ unsigned long register r0 asm("r0");
+ unsigned long register r3 asm("r3") = in[0];
+ unsigned long register r4 asm("r4") = in[1];
+ unsigned long register r5 asm("r5") = in[2];
+ unsigned long register r6 asm("r6") = in[3];
+ unsigned long register r7 asm("r7") = in[4];
+ unsigned long register r8 asm("r8") = in[5];
+ unsigned long register r9 asm("r9") = in[6];
+ unsigned long register r10 asm("r10") = in[7];
+ unsigned long register r11 asm("r11") = nr;
+ unsigned long register r12 asm("r12");
+
+ asm volatile("bl epapr_hypercall_start"
+ : "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6),
+ "=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11),
+ "=r"(r12)
+ : "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "r"(r8),
+ "r"(r9), "r"(r10), "r"(r11)
+ : "memory", "cc", "xer", "ctr", "lr");
+
+ out[0] = r4;
+ out[1] = r5;
+ out[2] = r6;
+ out[3] = r7;
+ out[4] = r8;
+ out[5] = r9;
+ out[6] = r10;
+ out[7] = r11;
+
+ return r3;
+}
+#else
+static unsigned long epapr_hypercall(unsigned long *in,
+ unsigned long *out,
+ unsigned long nr)
+{
+ return EV_UNIMPLEMENTED;
+}
+#endif
+
+static inline long epapr_hypercall0_1(unsigned int nr, unsigned long *r2)
+{
+ unsigned long in[8];
+ unsigned long out[8];
+ unsigned long r;
+
+ r = epapr_hypercall(in, out, nr);
+ *r2 = out[0];
+
+ return r;
+}
+
+static inline long epapr_hypercall0(unsigned int nr)
+{
+ unsigned long in[8];
+ unsigned long out[8];
+
+ return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall1(unsigned int nr, unsigned long p1)
+{
+ unsigned long in[8];
+ unsigned long out[8];
+
+ in[0] = p1;
+ return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall2(unsigned int nr, unsigned long p1,
+ unsigned long p2)
+{
+ unsigned long in[8];
+ unsigned long out[8];
+
+ in[0] = p1;
+ in[1] = p2;
+ return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall3(unsigned int nr, unsigned long p1,
+ unsigned long p2, unsigned long p3)
+{
+ unsigned long in[8];
+ unsigned long out[8];
+
+ in[0] = p1;
+ in[1] = p2;
+ in[2] = p3;
+ return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall4(unsigned int nr, unsigned long p1,
+ unsigned long p2, unsigned long p3,
+ unsigned long p4)
+{
+ unsigned long in[8];
+ unsigned long out[8];
+
+ in[0] = p1;
+ in[1] = p2;
+ in[2] = p3;
+ in[3] = p4;
+ return epapr_hypercall(in, out, nr);
+}
#endif /* !__ASSEMBLY__ */
#endif /* _EPAPR_HCALLS_H */
diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index 1503d8c..19eb74a 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -92,14 +92,17 @@
#define BOOK3S_INTERRUPT_FP_UNAVAIL 0x800
#define BOOK3S_INTERRUPT_DECREMENTER 0x900
#define BOOK3S_INTERRUPT_HV_DECREMENTER 0x980
+#define BOOK3S_INTERRUPT_DOORBELL 0xa00
#define BOOK3S_INTERRUPT_SYSCALL 0xc00
#define BOOK3S_INTERRUPT_TRACE 0xd00
#define BOOK3S_INTERRUPT_H_DATA_STORAGE 0xe00
#define BOOK3S_INTERRUPT_H_INST_STORAGE 0xe20
#define BOOK3S_INTERRUPT_H_EMUL_ASSIST 0xe40
+#define BOOK3S_INTERRUPT_H_DOORBELL 0xe80
#define BOOK3S_INTERRUPT_PERFMON 0xf00
#define BOOK3S_INTERRUPT_ALTIVEC 0xf20
#define BOOK3S_INTERRUPT_VSX 0xf40
+#define BOOK3S_INTERRUPT_H_FAC_UNAVAIL 0xf80
#define BOOK3S_IRQPRIO_SYSTEM_RESET 0
#define BOOK3S_IRQPRIO_DATA_SEGMENT 1
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index bc23b1b..83851aa 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -186,9 +186,6 @@ extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
extern void kvmppc_entry_trampoline(void);
extern void kvmppc_hv_entry_trampoline(void);
-extern void kvmppc_load_up_fpu(void);
-extern void kvmppc_load_up_altivec(void);
-extern void kvmppc_load_up_vsx(void);
extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
@@ -271,16 +268,25 @@ static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
return vcpu->arch.pc;
}
-static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
+static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
{
- ulong pc = kvmppc_get_pc(vcpu);
+ return (vcpu->arch.shared->msr & MSR_LE) != (MSR_KERNEL & MSR_LE);
+}
+static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc)
+{
/* Load the instruction manually if it failed to do so in the
* exit path */
if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
- return vcpu->arch.last_inst;
+ return kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) :
+ vcpu->arch.last_inst;
+}
+
+static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
+{
+ return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu));
}
/*
@@ -290,14 +296,7 @@ static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
*/
static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
{
- ulong pc = kvmppc_get_pc(vcpu) - 4;
-
- /* Load the instruction manually if it failed to do so in the
- * exit path */
- if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
- kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
-
- return vcpu->arch.last_inst;
+ return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4);
}
static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 192917d..f3a91dc 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -88,6 +88,7 @@ struct kvmppc_host_state {
u8 hwthread_req;
u8 hwthread_state;
u8 host_ipi;
+ u8 ptid;
struct kvm_vcpu *kvm_vcpu;
struct kvmppc_vcore *kvm_vcore;
unsigned long xics_phys;
diff --git a/arch/powerpc/include/asm/kvm_booke.h b/arch/powerpc/include/asm/kvm_booke.h
index dd8f615..80d46b5 100644
--- a/arch/powerpc/include/asm/kvm_booke.h
+++ b/arch/powerpc/include/asm/kvm_booke.h
@@ -63,6 +63,12 @@ static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
return vcpu->arch.xer;
}
+static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
+{
+ /* XXX Would need to check TLB entry */
+ return false;
+}
+
static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
{
return vcpu->arch.last_inst;
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 237d1d2..1eaea2d 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -288,6 +288,7 @@ struct kvmppc_vcore {
int n_woken;
int nap_count;
int napping_threads;
+ int first_vcpuid;
u16 pcpu;
u16 last_cpu;
u8 vcore_state;
@@ -298,10 +299,12 @@ struct kvmppc_vcore {
u64 stolen_tb;
u64 preempt_tb;
struct kvm_vcpu *runner;
+ struct kvm *kvm;
u64 tb_offset; /* guest timebase - host timebase */
ulong lpcr;
u32 arch_compat;
ulong pcr;
+ ulong dpdes; /* doorbell state (POWER8) */
};
#define VCORE_ENTRY_COUNT(vc) ((vc)->entry_exit_count & 0xff)
@@ -410,8 +413,7 @@ struct kvm_vcpu_arch {
ulong gpr[32];
- u64 fpr[32];
- u64 fpscr;
+ struct thread_fp_state fp;
#ifdef CONFIG_SPE
ulong evr[32];
@@ -420,12 +422,7 @@ struct kvm_vcpu_arch {
u64 acc;
#endif
#ifdef CONFIG_ALTIVEC
- vector128 vr[32];
- vector128 vscr;
-#endif
-
-#ifdef CONFIG_VSX
- u64 vsr[64];
+ struct thread_vr_state vr;
#endif
#ifdef CONFIG_KVM_BOOKE_HV
@@ -452,6 +449,7 @@ struct kvm_vcpu_arch {
ulong pc;
ulong ctr;
ulong lr;
+ ulong tar;
ulong xer;
u32 cr;
@@ -461,13 +459,30 @@ struct kvm_vcpu_arch {
ulong guest_owned_ext;
ulong purr;
ulong spurr;
+ ulong ic;
+ ulong vtb;
ulong dscr;
ulong amr;
ulong uamor;
+ ulong iamr;
u32 ctrl;
+ u32 dabrx;
ulong dabr;
+ ulong dawr;
+ ulong dawrx;
+ ulong ciabr;
ulong cfar;
ulong ppr;
+ ulong pspb;
+ ulong fscr;
+ ulong ebbhr;
+ ulong ebbrr;
+ ulong bescr;
+ ulong csigr;
+ ulong tacr;
+ ulong tcscr;
+ ulong acop;
+ ulong wort;
ulong shadow_srr1;
#endif
u32 vrsave; /* also USPRG0 */
@@ -502,10 +517,33 @@ struct kvm_vcpu_arch {
u32 ccr1;
u32 dbsr;
- u64 mmcr[3];
+ u64 mmcr[5];
u32 pmc[8];
+ u32 spmc[2];
u64 siar;
u64 sdar;
+ u64 sier;
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ u64 tfhar;
+ u64 texasr;
+ u64 tfiar;
+
+ u32 cr_tm;
+ u64 lr_tm;
+ u64 ctr_tm;
+ u64 amr_tm;
+ u64 ppr_tm;
+ u64 dscr_tm;
+ u64 tar_tm;
+
+ ulong gpr_tm[32];
+
+ struct thread_fp_state fp_tm;
+
+ struct thread_vr_state vr_tm;
+ u32 vrsave_tm; /* also USPRG0 */
+
+#endif
#ifdef CONFIG_KVM_EXIT_TIMING
struct mutex exit_timing_lock;
@@ -546,6 +584,7 @@ struct kvm_vcpu_arch {
#endif
gpa_t paddr_accessed;
gva_t vaddr_accessed;
+ pgd_t *pgdir;
u8 io_gpr; /* GPR used as IO source/target */
u8 mmio_is_bigendian;
@@ -603,7 +642,6 @@ struct kvm_vcpu_arch {
struct list_head run_list;
struct task_struct *run_task;
struct kvm_run *kvm_run;
- pgd_t *pgdir;
spinlock_t vpa_update_lock;
struct kvmppc_vpa vpa;
@@ -616,9 +654,12 @@ struct kvm_vcpu_arch {
spinlock_t tbacct_lock;
u64 busy_stolen;
u64 busy_preempt;
+ unsigned long intr_msr;
#endif
};
+#define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
+
/* Values for vcpu->arch.state */
#define KVMPPC_VCPU_NOTREADY 0
#define KVMPPC_VCPU_RUNNABLE 1
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index 2b11965..336a91a 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -39,10 +39,6 @@ static inline int kvm_para_available(void)
return 1;
}
-extern unsigned long kvm_hypercall(unsigned long *in,
- unsigned long *out,
- unsigned long nr);
-
#else
static inline int kvm_para_available(void)
@@ -50,82 +46,8 @@ static inline int kvm_para_available(void)
return 0;
}
-static unsigned long kvm_hypercall(unsigned long *in,
- unsigned long *out,
- unsigned long nr)
-{
- return EV_UNIMPLEMENTED;
-}
-
#endif
-static inline long kvm_hypercall0_1(unsigned int nr, unsigned long *r2)
-{
- unsigned long in[8];
- unsigned long out[8];
- unsigned long r;
-
- r = kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
- *r2 = out[0];
-
- return r;
-}
-
-static inline long kvm_hypercall0(unsigned int nr)
-{
- unsigned long in[8];
- unsigned long out[8];
-
- return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall1(unsigned int nr, unsigned long p1)
-{
- unsigned long in[8];
- unsigned long out[8];
-
- in[0] = p1;
- return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall2(unsigned int nr, unsigned long p1,
- unsigned long p2)
-{
- unsigned long in[8];
- unsigned long out[8];
-
- in[0] = p1;
- in[1] = p2;
- return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall3(unsigned int nr, unsigned long p1,
- unsigned long p2, unsigned long p3)
-{
- unsigned long in[8];
- unsigned long out[8];
-
- in[0] = p1;
- in[1] = p2;
- in[2] = p3;
- return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
- unsigned long p2, unsigned long p3,
- unsigned long p4)
-{
- unsigned long in[8];
- unsigned long out[8];
-
- in[0] = p1;
- in[1] = p2;
- in[2] = p3;
- in[3] = p4;
- return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-
static inline unsigned int kvm_arch_para_features(void)
{
unsigned long r;
@@ -133,7 +55,7 @@ static inline unsigned int kvm_arch_para_features(void)
if (!kvm_para_available())
return 0;
- if(kvm_hypercall0_1(KVM_HC_FEATURES, &r))
+ if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r))
return 0;
return r;
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index c8317fb..fcd53f0 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -54,12 +54,13 @@ extern void kvmppc_handler_highmem(void);
extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes,
- int is_bigendian);
+ int is_default_endian);
extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes,
- int is_bigendian);
+ int is_default_endian);
extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
- u64 val, unsigned int bytes, int is_bigendian);
+ u64 val, unsigned int bytes,
+ int is_default_endian);
extern int kvmppc_emulate_instruction(struct kvm_run *run,
struct kvm_vcpu *vcpu);
@@ -455,6 +456,12 @@ static inline void kvmppc_fix_ee_before_entry(void)
trace_hardirqs_on();
#ifdef CONFIG_PPC64
+ /*
+ * To avoid races, the caller must have gone directly from having
+ * interrupts fully-enabled to hard-disabled.
+ */
+ WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
+
/* Only need to enable IRQs by hard enabling them after this */
local_paca->irq_happened = 0;
local_paca->soft_enabled = 1;
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index b999ca31..f83b6f3 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -287,6 +287,27 @@ extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
#endif
pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
unsigned *shift);
+
+static inline pte_t *lookup_linux_ptep(pgd_t *pgdir, unsigned long hva,
+ unsigned long *pte_sizep)
+{
+ pte_t *ptep;
+ unsigned long ps = *pte_sizep;
+ unsigned int shift;
+
+ ptep = find_linux_pte_or_hugepte(pgdir, hva, &shift);
+ if (!ptep)
+ return NULL;
+ if (shift)
+ *pte_sizep = 1ul << shift;
+ else
+ *pte_sizep = PAGE_SIZE;
+
+ if (ps > *pte_sizep)
+ return NULL;
+
+ return ptep;
+}
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 62b114e..90c06ec 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -223,17 +223,26 @@
#define CTRL_TE 0x00c00000 /* thread enable */
#define CTRL_RUNLATCH 0x1
#define SPRN_DAWR 0xB4
+#define SPRN_CIABR 0xBB
+#define CIABR_PRIV 0x3
+#define CIABR_PRIV_USER 1
+#define CIABR_PRIV_SUPER 2
+#define CIABR_PRIV_HYPER 3
#define SPRN_DAWRX 0xBC
-#define DAWRX_USER (1UL << 0)
-#define DAWRX_KERNEL (1UL << 1)
-#define DAWRX_HYP (1UL << 2)
+#define DAWRX_USER __MASK(0)
+#define DAWRX_KERNEL __MASK(1)
+#define DAWRX_HYP __MASK(2)
+#define DAWRX_WTI __MASK(3)
+#define DAWRX_WT __MASK(4)
+#define DAWRX_DR __MASK(5)
+#define DAWRX_DW __MASK(6)
#define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */
#define SPRN_DABR2 0x13D /* e300 */
#define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */
-#define DABRX_USER (1UL << 0)
-#define DABRX_KERNEL (1UL << 1)
-#define DABRX_HYP (1UL << 2)
-#define DABRX_BTI (1UL << 3)
+#define DABRX_USER __MASK(0)
+#define DABRX_KERNEL __MASK(1)
+#define DABRX_HYP __MASK(2)
+#define DABRX_BTI __MASK(3)
#define DABRX_ALL (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER)
#define SPRN_DAR 0x013 /* Data Address Register */
#define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
@@ -260,6 +269,8 @@
#define SPRN_HRMOR 0x139 /* Real mode offset register */
#define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */
#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */
+#define SPRN_IC 0x350 /* Virtual Instruction Count */
+#define SPRN_VTB 0x351 /* Virtual Time Base */
/* HFSCR and FSCR bit numbers are the same */
#define FSCR_TAR_LG 8 /* Enable Target Address Register */
#define FSCR_EBB_LG 7 /* Enable Event Based Branching */
@@ -298,9 +309,13 @@
#define LPCR_RMLS 0x1C000000 /* impl dependent rmo limit sel */
#define LPCR_RMLS_SH (63-37)
#define LPCR_ILE 0x02000000 /* !HV irqs set MSR:LE */
+#define LPCR_AIL 0x01800000 /* Alternate interrupt location */
#define LPCR_AIL_0 0x00000000 /* MMU off exception offset 0x0 */
#define LPCR_AIL_3 0x01800000 /* MMU on exception offset 0xc00...4xxx */
-#define LPCR_PECE 0x00007000 /* powersave exit cause enable */
+#define LPCR_ONL 0x00040000 /* online - PURR/SPURR count */
+#define LPCR_PECE 0x0001f000 /* powersave exit cause enable */
+#define LPCR_PECEDP 0x00010000 /* directed priv dbells cause exit */
+#define LPCR_PECEDH 0x00008000 /* directed hyp dbells cause exit */
#define LPCR_PECE0 0x00004000 /* ext. exceptions can cause exit */
#define LPCR_PECE1 0x00002000 /* decrementer can cause exit */
#define LPCR_PECE2 0x00001000 /* machine check etc can cause exit */
@@ -322,6 +337,8 @@
#define SPRN_PCR 0x152 /* Processor compatibility register */
#define PCR_VEC_DIS (1ul << (63-0)) /* Vec. disable (bit NA since POWER8) */
#define PCR_VSX_DIS (1ul << (63-1)) /* VSX disable (bit NA since POWER8) */
+#define PCR_TM_DIS (1ul << (63-2)) /* Trans. memory disable (POWER8) */
+#define PCR_ARCH_206 0x4 /* Architecture 2.06 */
#define PCR_ARCH_205 0x2 /* Architecture 2.05 */
#define SPRN_HEIR 0x153 /* Hypervisor Emulated Instruction Register */
#define SPRN_TLBINDEXR 0x154 /* P7 TLB control register */
@@ -368,6 +385,8 @@
#define DER_EBRKE 0x00000002 /* External Breakpoint Interrupt */
#define DER_DPIE 0x00000001 /* Dev. Port Nonmaskable Request */
#define SPRN_DMISS 0x3D0 /* Data TLB Miss Register */
+#define SPRN_DHDES 0x0B1 /* Directed Hyp. Doorbell Exc. State */
+#define SPRN_DPDES 0x0B0 /* Directed Priv. Doorbell Exc. State */
#define SPRN_EAR 0x11A /* External Address Register */
#define SPRN_HASH1 0x3D2 /* Primary Hash Address Register */
#define SPRN_HASH2 0x3D3 /* Secondary Hash Address Resgister */
@@ -427,6 +446,7 @@
#define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */
#define SPRN_IABR2 0x3FA /* 83xx */
#define SPRN_IBCR 0x135 /* 83xx Insn Breakpoint Control Reg */
+#define SPRN_IAMR 0x03D /* Instr. Authority Mask Reg */
#define SPRN_HID4 0x3F4 /* 970 HID4 */
#define HID4_LPES0 (1ul << (63-0)) /* LPAR env. sel. bit 0 */
#define HID4_RMLS2_SH (63 - 2) /* Real mode limit bottom 2 bits */
@@ -541,6 +561,7 @@
#define SPRN_PIR 0x3FF /* Processor Identification Register */
#endif
#define SPRN_TIR 0x1BE /* Thread Identification Register */
+#define SPRN_PSPB 0x09F /* Problem State Priority Boost reg */
#define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */
#define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */
#define SPRN_PURR 0x135 /* Processor Utilization of Resources Reg */
@@ -682,6 +703,7 @@
#define SPRN_EBBHR 804 /* Event based branch handler register */
#define SPRN_EBBRR 805 /* Event based branch return register */
#define SPRN_BESCR 806 /* Branch event status and control register */
+#define SPRN_WORT 895 /* Workload optimization register - thread */
#define SPRN_PMC1 787
#define SPRN_PMC2 788
@@ -698,6 +720,11 @@
#define SIER_SIHV 0x1000000 /* Sampled MSR_HV */
#define SIER_SIAR_VALID 0x0400000 /* SIAR contents valid */
#define SIER_SDAR_VALID 0x0200000 /* SDAR contents valid */
+#define SPRN_TACR 888
+#define SPRN_TCSCR 889
+#define SPRN_CSIGR 890
+#define SPRN_SPMC1 892
+#define SPRN_SPMC2 893
/* When EBB is enabled, some of MMCR0/MMCR2/SIER are user accessible */
#define MMCR0_USER_MASK (MMCR0_FC | MMCR0_PMXE | MMCR0_PMAO)
diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index aace905..0e83e7d 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -25,10 +25,8 @@ static inline void save_tar(struct thread_struct *prev)
static inline void save_tar(struct thread_struct *prev) {}
#endif
-extern void load_up_fpu(void);
extern void enable_kernel_fp(void);
extern void enable_kernel_altivec(void);
-extern void load_up_altivec(struct task_struct *);
extern int emulate_altivec(struct pt_regs *);
extern void __giveup_vsx(struct task_struct *);
extern void giveup_vsx(struct task_struct *);
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 6836ec7..a6665be 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -545,6 +545,7 @@ struct kvm_get_htab_header {
#define KVM_REG_PPC_TCSCR (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb1)
#define KVM_REG_PPC_PID (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb2)
#define KVM_REG_PPC_ACOP (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb3)
+#define KVM_REG_PPC_WORT (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb4)
#define KVM_REG_PPC_VRSAVE (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb4)
#define KVM_REG_PPC_LPCR (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb5)
@@ -553,6 +554,8 @@ struct kvm_get_htab_header {
/* Architecture compatibility level */
#define KVM_REG_PPC_ARCH_COMPAT (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb7)
+#define KVM_REG_PPC_DABRX (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb8)
+
/* Transactional Memory checkpointed state:
* This is all GPRs, all VSX regs and a subset of SPRs
*/
diff --git a/arch/powerpc/include/uapi/asm/tm.h b/arch/powerpc/include/uapi/asm/tm.h
index 85059a0..5d836b7 100644
--- a/arch/powerpc/include/uapi/asm/tm.h
+++ b/arch/powerpc/include/uapi/asm/tm.h
@@ -6,6 +6,8 @@
* the failure is persistent. PAPR saves 0xff-0xe0 for the hypervisor.
*/
#define TM_CAUSE_PERSISTENT 0x01
+#define TM_CAUSE_KVM_RESCHED 0xe0 /* From PAPR */
+#define TM_CAUSE_KVM_FAC_UNAV 0xe2 /* From PAPR */
#define TM_CAUSE_RESCHED 0xde
#define TM_CAUSE_TLBI 0xdc
#define TM_CAUSE_FAC_UNAV 0xda
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 8d1d94d..b5aacf7 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -438,18 +438,14 @@ int main(void)
DEFINE(VCPU_GUEST_PID, offsetof(struct kvm_vcpu, arch.pid));
DEFINE(VCPU_GPRS, offsetof(struct kvm_vcpu, arch.gpr));
DEFINE(VCPU_VRSAVE, offsetof(struct kvm_vcpu, arch.vrsave));
- DEFINE(VCPU_FPRS, offsetof(struct kvm_vcpu, arch.fpr));
- DEFINE(VCPU_FPSCR, offsetof(struct kvm_vcpu, arch.fpscr));
+ DEFINE(VCPU_FPRS, offsetof(struct kvm_vcpu, arch.fp.fpr));
#ifdef CONFIG_ALTIVEC
- DEFINE(VCPU_VRS, offsetof(struct kvm_vcpu, arch.vr));
- DEFINE(VCPU_VSCR, offsetof(struct kvm_vcpu, arch.vscr));
-#endif
-#ifdef CONFIG_VSX
- DEFINE(VCPU_VSRS, offsetof(struct kvm_vcpu, arch.vsr));
+ DEFINE(VCPU_VRS, offsetof(struct kvm_vcpu, arch.vr.vr));
#endif
DEFINE(VCPU_XER, offsetof(struct kvm_vcpu, arch.xer));
DEFINE(VCPU_CTR, offsetof(struct kvm_vcpu, arch.ctr));
DEFINE(VCPU_LR, offsetof(struct kvm_vcpu, arch.lr));
+ DEFINE(VCPU_TAR, offsetof(struct kvm_vcpu, arch.tar));
DEFINE(VCPU_CR, offsetof(struct kvm_vcpu, arch.cr));
DEFINE(VCPU_PC, offsetof(struct kvm_vcpu, arch.pc));
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
@@ -497,16 +493,24 @@ int main(void)
DEFINE(VCPU_DAR, offsetof(struct kvm_vcpu, arch.shregs.dar));
DEFINE(VCPU_VPA, offsetof(struct kvm_vcpu, arch.vpa.pinned_addr));
DEFINE(VCPU_VPA_DIRTY, offsetof(struct kvm_vcpu, arch.vpa.dirty));
+ DEFINE(VCPU_INTR_MSR, offsetof(struct kvm_vcpu, arch.intr_msr));
#endif
#ifdef CONFIG_PPC_BOOK3S
DEFINE(VCPU_VCPUID, offsetof(struct kvm_vcpu, vcpu_id));
DEFINE(VCPU_PURR, offsetof(struct kvm_vcpu, arch.purr));
DEFINE(VCPU_SPURR, offsetof(struct kvm_vcpu, arch.spurr));
+ DEFINE(VCPU_IC, offsetof(struct kvm_vcpu, arch.ic));
+ DEFINE(VCPU_VTB, offsetof(struct kvm_vcpu, arch.vtb));
DEFINE(VCPU_DSCR, offsetof(struct kvm_vcpu, arch.dscr));
DEFINE(VCPU_AMR, offsetof(struct kvm_vcpu, arch.amr));
DEFINE(VCPU_UAMOR, offsetof(struct kvm_vcpu, arch.uamor));
+ DEFINE(VCPU_IAMR, offsetof(struct kvm_vcpu, arch.iamr));
DEFINE(VCPU_CTRL, offsetof(struct kvm_vcpu, arch.ctrl));
DEFINE(VCPU_DABR, offsetof(struct kvm_vcpu, arch.dabr));
+ DEFINE(VCPU_DABRX, offsetof(struct kvm_vcpu, arch.dabrx));
+ DEFINE(VCPU_DAWR, offsetof(struct kvm_vcpu, arch.dawr));
+ DEFINE(VCPU_DAWRX, offsetof(struct kvm_vcpu, arch.dawrx));
+ DEFINE(VCPU_CIABR, offsetof(struct kvm_vcpu, arch.ciabr));
DEFINE(VCPU_HFLAGS, offsetof(struct kvm_vcpu, arch.hflags));
DEFINE(VCPU_DEC, offsetof(struct kvm_vcpu, arch.dec));
DEFINE(VCPU_DEC_EXPIRES, offsetof(struct kvm_vcpu, arch.dec_expires));
@@ -515,8 +519,10 @@ int main(void)
DEFINE(VCPU_PRODDED, offsetof(struct kvm_vcpu, arch.prodded));
DEFINE(VCPU_MMCR, offsetof(struct kvm_vcpu, arch.mmcr));
DEFINE(VCPU_PMC, offsetof(struct kvm_vcpu, arch.pmc));
+ DEFINE(VCPU_SPMC, offsetof(struct kvm_vcpu, arch.spmc));
DEFINE(VCPU_SIAR, offsetof(struct kvm_vcpu, arch.siar));
DEFINE(VCPU_SDAR, offsetof(struct kvm_vcpu, arch.sdar));
+ DEFINE(VCPU_SIER, offsetof(struct kvm_vcpu, arch.sier));
DEFINE(VCPU_SLB, offsetof(struct kvm_vcpu, arch.slb));
DEFINE(VCPU_SLB_MAX, offsetof(struct kvm_vcpu, arch.slb_max));
DEFINE(VCPU_SLB_NR, offsetof(struct kvm_vcpu, arch.slb_nr));
@@ -524,20 +530,47 @@ int main(void)
DEFINE(VCPU_FAULT_DAR, offsetof(struct kvm_vcpu, arch.fault_dar));
DEFINE(VCPU_LAST_INST, offsetof(struct kvm_vcpu, arch.last_inst));
DEFINE(VCPU_TRAP, offsetof(struct kvm_vcpu, arch.trap));
- DEFINE(VCPU_PTID, offsetof(struct kvm_vcpu, arch.ptid));
DEFINE(VCPU_CFAR, offsetof(struct kvm_vcpu, arch.cfar));
DEFINE(VCPU_PPR, offsetof(struct kvm_vcpu, arch.ppr));
+ DEFINE(VCPU_FSCR, offsetof(struct kvm_vcpu, arch.fscr));
+ DEFINE(VCPU_PSPB, offsetof(struct kvm_vcpu, arch.pspb));
+ DEFINE(VCPU_EBBHR, offsetof(struct kvm_vcpu, arch.ebbhr));
+ DEFINE(VCPU_EBBRR, offsetof(struct kvm_vcpu, arch.ebbrr));
+ DEFINE(VCPU_BESCR, offsetof(struct kvm_vcpu, arch.bescr));
+ DEFINE(VCPU_CSIGR, offsetof(struct kvm_vcpu, arch.csigr));
+ DEFINE(VCPU_TACR, offsetof(struct kvm_vcpu, arch.tacr));
+ DEFINE(VCPU_TCSCR, offsetof(struct kvm_vcpu, arch.tcscr));
+ DEFINE(VCPU_ACOP, offsetof(struct kvm_vcpu, arch.acop));
+ DEFINE(VCPU_WORT, offsetof(struct kvm_vcpu, arch.wort));
DEFINE(VCPU_SHADOW_SRR1, offsetof(struct kvm_vcpu, arch.shadow_srr1));
DEFINE(VCORE_ENTRY_EXIT, offsetof(struct kvmppc_vcore, entry_exit_count));
DEFINE(VCORE_NAP_COUNT, offsetof(struct kvmppc_vcore, nap_count));
DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest));
DEFINE(VCORE_NAPPING_THREADS, offsetof(struct kvmppc_vcore, napping_threads));
+ DEFINE(VCORE_KVM, offsetof(struct kvmppc_vcore, kvm));
DEFINE(VCORE_TB_OFFSET, offsetof(struct kvmppc_vcore, tb_offset));
DEFINE(VCORE_LPCR, offsetof(struct kvmppc_vcore, lpcr));
DEFINE(VCORE_PCR, offsetof(struct kvmppc_vcore, pcr));
+ DEFINE(VCORE_DPDES, offsetof(struct kvmppc_vcore, dpdes));
DEFINE(VCPU_SLB_E, offsetof(struct kvmppc_slb, orige));
DEFINE(VCPU_SLB_V, offsetof(struct kvmppc_slb, origv));
DEFINE(VCPU_SLB_SIZE, sizeof(struct kvmppc_slb));
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ DEFINE(VCPU_TFHAR, offsetof(struct kvm_vcpu, arch.tfhar));
+ DEFINE(VCPU_TFIAR, offsetof(struct kvm_vcpu, arch.tfiar));
+ DEFINE(VCPU_TEXASR, offsetof(struct kvm_vcpu, arch.texasr));
+ DEFINE(VCPU_GPR_TM, offsetof(struct kvm_vcpu, arch.gpr_tm));
+ DEFINE(VCPU_FPRS_TM, offsetof(struct kvm_vcpu, arch.fp_tm.fpr));
+ DEFINE(VCPU_VRS_TM, offsetof(struct kvm_vcpu, arch.vr_tm.vr));
+ DEFINE(VCPU_VRSAVE_TM, offsetof(struct kvm_vcpu, arch.vrsave_tm));
+ DEFINE(VCPU_CR_TM, offsetof(struct kvm_vcpu, arch.cr_tm));
+ DEFINE(VCPU_LR_TM, offsetof(struct kvm_vcpu, arch.lr_tm));
+ DEFINE(VCPU_CTR_TM, offsetof(struct kvm_vcpu, arch.ctr_tm));
+ DEFINE(VCPU_AMR_TM, offsetof(struct kvm_vcpu, arch.amr_tm));
+ DEFINE(VCPU_PPR_TM, offsetof(struct kvm_vcpu, arch.ppr_tm));
+ DEFINE(VCPU_DSCR_TM, offsetof(struct kvm_vcpu, arch.dscr_tm));
+ DEFINE(VCPU_TAR_TM, offsetof(struct kvm_vcpu, arch.tar_tm));
+#endif
#ifdef CONFIG_PPC_BOOK3S_64
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
@@ -602,6 +635,7 @@ int main(void)
HSTATE_FIELD(HSTATE_XICS_PHYS, xics_phys);
HSTATE_FIELD(HSTATE_SAVED_XIRR, saved_xirr);
HSTATE_FIELD(HSTATE_HOST_IPI, host_ipi);
+ HSTATE_FIELD(HSTATE_PTID, ptid);
HSTATE_FIELD(HSTATE_MMCR, host_mmcr);
HSTATE_FIELD(HSTATE_PMC, host_pmc);
HSTATE_FIELD(HSTATE_PURR, host_purr);
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index db28032..6a01752 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -413,13 +413,13 @@ static void kvm_map_magic_page(void *data)
{
u32 *features = data;
- ulong in[8];
+ ulong in[8] = {0};
ulong out[8];
in[0] = KVM_MAGIC_PAGE;
in[1] = KVM_MAGIC_PAGE;
- kvm_hypercall(in, out, KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE));
+ epapr_hypercall(in, out, KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE));
*features = out[0];
}
@@ -711,43 +711,6 @@ static void kvm_use_magic_page(void)
kvm_patching_worked ? "worked" : "failed");
}
-unsigned long kvm_hypercall(unsigned long *in,
- unsigned long *out,
- unsigned long nr)
-{
- unsigned long register r0 asm("r0");
- unsigned long register r3 asm("r3") = in[0];
- unsigned long register r4 asm("r4") = in[1];
- unsigned long register r5 asm("r5") = in[2];
- unsigned long register r6 asm("r6") = in[3];
- unsigned long register r7 asm("r7") = in[4];
- unsigned long register r8 asm("r8") = in[5];
- unsigned long register r9 asm("r9") = in[6];
- unsigned long register r10 asm("r10") = in[7];
- unsigned long register r11 asm("r11") = nr;
- unsigned long register r12 asm("r12");
-
- asm volatile("bl epapr_hypercall_start"
- : "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6),
- "=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11),
- "=r"(r12)
- : "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "r"(r8),
- "r"(r9), "r"(r10), "r"(r11)
- : "memory", "cc", "xer", "ctr", "lr");
-
- out[0] = r4;
- out[1] = r5;
- out[2] = r6;
- out[3] = r7;
- out[4] = r8;
- out[5] = r9;
- out[6] = r10;
- out[7] = r11;
-
- return r3;
-}
-EXPORT_SYMBOL_GPL(kvm_hypercall);
-
static __init void kvm_free_tmp(void)
{
free_reserved_area(&kvm_tmp[kvm_tmp_index],
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index 93221e8..9cb4b0a 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -21,6 +21,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@@ -231,3 +233,5 @@ static void __exit kvmppc_44x_exit(void)
module_init(kvmppc_44x_init);
module_exit(kvmppc_44x_exit);
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 8912608..94e597e 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -18,6 +18,8 @@
#include <linux/err.h>
#include <linux/export.h>
#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@@ -575,10 +577,10 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
break;
case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
i = reg->id - KVM_REG_PPC_FPR0;
- val = get_reg_val(reg->id, vcpu->arch.fpr[i]);
+ val = get_reg_val(reg->id, VCPU_FPR(vcpu, i));
break;
case KVM_REG_PPC_FPSCR:
- val = get_reg_val(reg->id, vcpu->arch.fpscr);
+ val = get_reg_val(reg->id, vcpu->arch.fp.fpscr);
break;
#ifdef CONFIG_ALTIVEC
case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
@@ -586,19 +588,30 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
r = -ENXIO;
break;
}
- val.vval = vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0];
+ val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0];
break;
case KVM_REG_PPC_VSCR:
if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
r = -ENXIO;
break;
}
- val = get_reg_val(reg->id, vcpu->arch.vscr.u[3]);
+ val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]);
break;
case KVM_REG_PPC_VRSAVE:
val = get_reg_val(reg->id, vcpu->arch.vrsave);
break;
#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_VSX
+ case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
+ if (cpu_has_feature(CPU_FTR_VSX)) {
+ long int i = reg->id - KVM_REG_PPC_VSR0;
+ val.vsxval[0] = vcpu->arch.fp.fpr[i][0];
+ val.vsxval[1] = vcpu->arch.fp.fpr[i][1];
+ } else {
+ r = -ENXIO;
+ }
+ break;
+#endif /* CONFIG_VSX */
case KVM_REG_PPC_DEBUG_INST: {
u32 opcode = INS_TW;
r = copy_to_user((u32 __user *)(long)reg->addr,
@@ -654,10 +667,10 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
break;
case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
i = reg->id - KVM_REG_PPC_FPR0;
- vcpu->arch.fpr[i] = set_reg_val(reg->id, val);
+ VCPU_FPR(vcpu, i) = set_reg_val(reg->id, val);
break;
case KVM_REG_PPC_FPSCR:
- vcpu->arch.fpscr = set_reg_val(reg->id, val);
+ vcpu->arch.fp.fpscr = set_reg_val(reg->id, val);
break;
#ifdef CONFIG_ALTIVEC
case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
@@ -665,14 +678,14 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
r = -ENXIO;
break;
}
- vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
+ vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
break;
case KVM_REG_PPC_VSCR:
if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
r = -ENXIO;
break;
}
- vcpu->arch.vscr.u[3] = set_reg_val(reg->id, val);
+ vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val);
break;
case KVM_REG_PPC_VRSAVE:
if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
@@ -682,6 +695,17 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
vcpu->arch.vrsave = set_reg_val(reg->id, val);
break;
#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_VSX
+ case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
+ if (cpu_has_feature(CPU_FTR_VSX)) {
+ long int i = reg->id - KVM_REG_PPC_VSR0;
+ vcpu->arch.fp.fpr[i][0] = val.vsxval[0];
+ vcpu->arch.fp.fpr[i][1] = val.vsxval[1];
+ } else {
+ r = -ENXIO;
+ }
+ break;
+#endif /* CONFIG_VSX */
#ifdef CONFIG_KVM_XICS
case KVM_REG_PPC_ICP_STATE:
if (!vcpu->arch.icp) {
@@ -879,3 +903,9 @@ static void kvmppc_book3s_exit(void)
module_init(kvmppc_book3s_init);
module_exit(kvmppc_book3s_exit);
+
+/* On 32bit this is our one and only kernel module */
+#ifdef CONFIG_KVM_BOOK3S_32
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
+#endif
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c
index 3a0abd2..5fac89d 100644
--- a/arch/powerpc/kvm/book3s_32_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_32_mmu_host.c
@@ -243,6 +243,11 @@ next_pteg:
/* Now tell our Shadow PTE code about the new page */
pte = kvmppc_mmu_hpte_cache_next(vcpu);
+ if (!pte) {
+ kvm_release_pfn_clean(hpaddr >> PAGE_SHIFT);
+ r = -EAGAIN;
+ goto out;
+ }
dprintk_mmu("KVM: %c%c Map 0x%llx: [%lx] 0x%llx (0x%llx) -> %lx\n",
orig_pte->may_write ? 'w' : '-',
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index c5d1484..303ece7 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -262,7 +262,7 @@ int kvmppc_mmu_hv_init(void)
static void kvmppc_mmu_book3s_64_hv_reset_msr(struct kvm_vcpu *vcpu)
{
- kvmppc_set_msr(vcpu, MSR_SF | MSR_ME);
+ kvmppc_set_msr(vcpu, vcpu->arch.intr_msr);
}
/*
@@ -562,7 +562,7 @@ static int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu,
* we just return and retry the instruction.
*/
- if (instruction_is_store(vcpu->arch.last_inst) != !!is_store)
+ if (instruction_is_store(kvmppc_get_last_inst(vcpu)) != !!is_store)
return RESUME_GUEST;
/*
diff --git a/arch/powerpc/kvm/book3s_exports.c b/arch/powerpc/kvm/book3s_exports.c
index 852989a..20d4ea8 100644
--- a/arch/powerpc/kvm/book3s_exports.c
+++ b/arch/powerpc/kvm/book3s_exports.c
@@ -25,9 +25,5 @@ EXPORT_SYMBOL_GPL(kvmppc_hv_entry_trampoline);
#endif
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
EXPORT_SYMBOL_GPL(kvmppc_entry_trampoline);
-EXPORT_SYMBOL_GPL(kvmppc_load_up_fpu);
-#ifdef CONFIG_ALTIVEC
-EXPORT_SYMBOL_GPL(kvmppc_load_up_altivec);
-#endif
#endif
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 3818bd9..17fc949 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -31,6 +31,7 @@
#include <linux/spinlock.h>
#include <linux/page-flags.h>
#include <linux/srcu.h>
+#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@@ -85,10 +86,13 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
/* CPU points to the first thread of the core */
if (cpu != me && cpu >= 0 && cpu < nr_cpu_ids) {
+#ifdef CONFIG_KVM_XICS
int real_cpu = cpu + vcpu->arch.ptid;
if (paca[real_cpu].kvm_hstate.xics_phys)
xics_wake_cpu(real_cpu);
- else if (cpu_online(cpu))
+ else
+#endif
+ if (cpu_online(cpu))
smp_send_reschedule(cpu);
}
put_cpu();
@@ -182,14 +186,28 @@ int kvmppc_set_arch_compat(struct kvm_vcpu *vcpu, u32 arch_compat)
switch (arch_compat) {
case PVR_ARCH_205:
- pcr = PCR_ARCH_205;
+ /*
+ * If an arch bit is set in PCR, all the defined
+ * higher-order arch bits also have to be set.
+ */
+ pcr = PCR_ARCH_206 | PCR_ARCH_205;
break;
case PVR_ARCH_206:
case PVR_ARCH_206p:
+ pcr = PCR_ARCH_206;
+ break;
+ case PVR_ARCH_207:
break;
default:
return -EINVAL;
}
+
+ if (!cpu_has_feature(CPU_FTR_ARCH_207S)) {
+ /* POWER7 can't emulate POWER8 */
+ if (!(pcr & PCR_ARCH_206))
+ return -EINVAL;
+ pcr &= ~PCR_ARCH_206;
+ }
}
spin_lock(&vc->lock);
@@ -637,6 +655,7 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_EXTERNAL:
+ case BOOK3S_INTERRUPT_H_DOORBELL:
vcpu->stat.ext_intr_exits++;
r = RESUME_GUEST;
break;
@@ -673,12 +692,10 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* hcall - punt to userspace */
int i;
- if (vcpu->arch.shregs.msr & MSR_PR) {
- /* sc 1 from userspace - reflect to guest syscall */
- kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_SYSCALL);
- r = RESUME_GUEST;
- break;
- }
+ /* hypercall with MSR_PR has already been handled in rmode,
+ * and never reaches here.
+ */
+
run->papr_hcall.nr = kvmppc_get_gpr(vcpu, 3);
for (i = 0; i < 9; ++i)
run->papr_hcall.args[i] = kvmppc_get_gpr(vcpu, 4 + i);
@@ -708,7 +725,16 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
* we don't emulate any guest instructions at this stage.
*/
case BOOK3S_INTERRUPT_H_EMUL_ASSIST:
- kvmppc_core_queue_program(vcpu, 0x80000);
+ kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
+ r = RESUME_GUEST;
+ break;
+ /*
+ * This occurs if the guest (kernel or userspace), does something that
+ * is prohibited by HFSCR. We just generate a program interrupt to
+ * the guest.
+ */
+ case BOOK3S_INTERRUPT_H_FAC_UNAVAIL:
+ kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
r = RESUME_GUEST;
break;
default:
@@ -766,10 +792,34 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr)
spin_lock(&vc->lock);
/*
+ * If ILE (interrupt little-endian) has changed, update the
+ * MSR_LE bit in the intr_msr for each vcpu in this vcore.
+ */
+ if ((new_lpcr & LPCR_ILE) != (vc->lpcr & LPCR_ILE)) {
+ struct kvm *kvm = vcpu->kvm;
+ struct kvm_vcpu *vcpu;
+ int i;
+
+ mutex_lock(&kvm->lock);
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ if (vcpu->arch.vcore != vc)
+ continue;
+ if (new_lpcr & LPCR_ILE)
+ vcpu->arch.intr_msr |= MSR_LE;
+ else
+ vcpu->arch.intr_msr &= ~MSR_LE;
+ }
+ mutex_unlock(&kvm->lock);
+ }
+
+ /*
* Userspace can only modify DPFD (default prefetch depth),
* ILE (interrupt little-endian) and TC (translation control).
+ * On POWER8 userspace can also modify AIL (alt. interrupt loc.)
*/
mask = LPCR_DPFD | LPCR_ILE | LPCR_TC;
+ if (cpu_has_feature(CPU_FTR_ARCH_207S))
+ mask |= LPCR_AIL;
vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask);
spin_unlock(&vc->lock);
}
@@ -787,6 +837,9 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_DABR:
*val = get_reg_val(id, vcpu->arch.dabr);
break;
+ case KVM_REG_PPC_DABRX:
+ *val = get_reg_val(id, vcpu->arch.dabrx);
+ break;
case KVM_REG_PPC_DSCR:
*val = get_reg_val(id, vcpu->arch.dscr);
break;
@@ -802,7 +855,7 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_UAMOR:
*val = get_reg_val(id, vcpu->arch.uamor);
break;
- case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRA:
+ case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRS:
i = id - KVM_REG_PPC_MMCR0;
*val = get_reg_val(id, vcpu->arch.mmcr[i]);
break;
@@ -810,33 +863,87 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
i = id - KVM_REG_PPC_PMC1;
*val = get_reg_val(id, vcpu->arch.pmc[i]);
break;
+ case KVM_REG_PPC_SPMC1 ... KVM_REG_PPC_SPMC2:
+ i = id - KVM_REG_PPC_SPMC1;
+ *val = get_reg_val(id, vcpu->arch.spmc[i]);
+ break;
case KVM_REG_PPC_SIAR:
*val = get_reg_val(id, vcpu->arch.siar);
break;
case KVM_REG_PPC_SDAR:
*val = get_reg_val(id, vcpu->arch.sdar);
break;
-#ifdef CONFIG_VSX
- case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
- if (cpu_has_feature(CPU_FTR_VSX)) {
- /* VSX => FP reg i is stored in arch.vsr[2*i] */
- long int i = id - KVM_REG_PPC_FPR0;
- *val = get_reg_val(id, vcpu->arch.vsr[2 * i]);
- } else {
- /* let generic code handle it */
- r = -EINVAL;
- }
+ case KVM_REG_PPC_SIER:
+ *val = get_reg_val(id, vcpu->arch.sier);
break;
- case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
- if (cpu_has_feature(CPU_FTR_VSX)) {
- long int i = id - KVM_REG_PPC_VSR0;
- val->vsxval[0] = vcpu->arch.vsr[2 * i];
- val->vsxval[1] = vcpu->arch.vsr[2 * i + 1];
- } else {
- r = -ENXIO;
- }
+ case KVM_REG_PPC_IAMR:
+ *val = get_reg_val(id, vcpu->arch.iamr);
+ break;
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ case KVM_REG_PPC_TFHAR:
+ *val = get_reg_val(id, vcpu->arch.tfhar);
+ break;
+ case KVM_REG_PPC_TFIAR:
+ *val = get_reg_val(id, vcpu->arch.tfiar);
+ break;
+ case KVM_REG_PPC_TEXASR:
+ *val = get_reg_val(id, vcpu->arch.texasr);
+ break;
+#endif
+ case KVM_REG_PPC_FSCR:
+ *val = get_reg_val(id, vcpu->arch.fscr);
+ break;
+ case KVM_REG_PPC_PSPB:
+ *val = get_reg_val(id, vcpu->arch.pspb);
+ break;
+ case KVM_REG_PPC_EBBHR:
+ *val = get_reg_val(id, vcpu->arch.ebbhr);
+ break;
+ case KVM_REG_PPC_EBBRR:
+ *val = get_reg_val(id, vcpu->arch.ebbrr);
+ break;
+ case KVM_REG_PPC_BESCR:
+ *val = get_reg_val(id, vcpu->arch.bescr);
+ break;
+ case KVM_REG_PPC_TAR:
+ *val = get_reg_val(id, vcpu->arch.tar);
+ break;
+ case KVM_REG_PPC_DPDES:
+ *val = get_reg_val(id, vcpu->arch.vcore->dpdes);
+ break;
+ case KVM_REG_PPC_DAWR:
+ *val = get_reg_val(id, vcpu->arch.dawr);
+ break;
+ case KVM_REG_PPC_DAWRX:
+ *val = get_reg_val(id, vcpu->arch.dawrx);
+ break;
+ case KVM_REG_PPC_CIABR:
+ *val = get_reg_val(id, vcpu->arch.ciabr);
+ break;
+ case KVM_REG_PPC_IC:
+ *val = get_reg_val(id, vcpu->arch.ic);
+ break;
+ case KVM_REG_PPC_VTB:
+ *val = get_reg_val(id, vcpu->arch.vtb);
+ break;
+ case KVM_REG_PPC_CSIGR:
+ *val = get_reg_val(id, vcpu->arch.csigr);
+ break;
+ case KVM_REG_PPC_TACR:
+ *val = get_reg_val(id, vcpu->arch.tacr);
+ break;
+ case KVM_REG_PPC_TCSCR:
+ *val = get_reg_val(id, vcpu->arch.tcscr);
+ break;
+ case KVM_REG_PPC_PID:
+ *val = get_reg_val(id, vcpu->arch.pid);
+ break;
+ case KVM_REG_PPC_ACOP:
+ *val = get_reg_val(id, vcpu->arch.acop);
+ break;
+ case KVM_REG_PPC_WORT:
+ *val = get_reg_val(id, vcpu->arch.wort);
break;
-#endif /* CONFIG_VSX */
case KVM_REG_PPC_VPA_ADDR:
spin_lock(&vcpu->arch.vpa_update_lock);
*val = get_reg_val(id, vcpu->arch.vpa.next_gpa);
@@ -890,6 +997,9 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_DABR:
vcpu->arch.dabr = set_reg_val(id, *val);
break;
+ case KVM_REG_PPC_DABRX:
+ vcpu->arch.dabrx = set_reg_val(id, *val) & ~DABRX_HYP;
+ break;
case KVM_REG_PPC_DSCR:
vcpu->arch.dscr = set_reg_val(id, *val);
break;
@@ -905,7 +1015,7 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_UAMOR:
vcpu->arch.uamor = set_reg_val(id, *val);
break;
- case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRA:
+ case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRS:
i = id - KVM_REG_PPC_MMCR0;
vcpu->arch.mmcr[i] = set_reg_val(id, *val);
break;
@@ -913,33 +1023,90 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
i = id - KVM_REG_PPC_PMC1;
vcpu->arch.pmc[i] = set_reg_val(id, *val);
break;
+ case KVM_REG_PPC_SPMC1 ... KVM_REG_PPC_SPMC2:
+ i = id - KVM_REG_PPC_SPMC1;
+ vcpu->arch.spmc[i] = set_reg_val(id, *val);
+ break;
case KVM_REG_PPC_SIAR:
vcpu->arch.siar = set_reg_val(id, *val);
break;
case KVM_REG_PPC_SDAR:
vcpu->arch.sdar = set_reg_val(id, *val);
break;
-#ifdef CONFIG_VSX
- case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
- if (cpu_has_feature(CPU_FTR_VSX)) {
- /* VSX => FP reg i is stored in arch.vsr[2*i] */
- long int i = id - KVM_REG_PPC_FPR0;
- vcpu->arch.vsr[2 * i] = set_reg_val(id, *val);
- } else {
- /* let generic code handle it */
- r = -EINVAL;
- }
+ case KVM_REG_PPC_SIER:
+ vcpu->arch.sier = set_reg_val(id, *val);
break;
- case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
- if (cpu_has_feature(CPU_FTR_VSX)) {
- long int i = id - KVM_REG_PPC_VSR0;
- vcpu->arch.vsr[2 * i] = val->vsxval[0];
- vcpu->arch.vsr[2 * i + 1] = val->vsxval[1];
- } else {
- r = -ENXIO;
- }
+ case KVM_REG_PPC_IAMR:
+ vcpu->arch.iamr = set_reg_val(id, *val);
+ break;
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ case KVM_REG_PPC_TFHAR:
+ vcpu->arch.tfhar = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_TFIAR:
+ vcpu->arch.tfiar = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_TEXASR:
+ vcpu->arch.texasr = set_reg_val(id, *val);
+ break;
+#endif
+ case KVM_REG_PPC_FSCR:
+ vcpu->arch.fscr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_PSPB:
+ vcpu->arch.pspb = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_EBBHR:
+ vcpu->arch.ebbhr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_EBBRR:
+ vcpu->arch.ebbrr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_BESCR:
+ vcpu->arch.bescr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_TAR:
+ vcpu->arch.tar = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_DPDES:
+ vcpu->arch.vcore->dpdes = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_DAWR:
+ vcpu->arch.dawr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_DAWRX:
+ vcpu->arch.dawrx = set_reg_val(id, *val) & ~DAWRX_HYP;
+ break;
+ case KVM_REG_PPC_CIABR:
+ vcpu->arch.ciabr = set_reg_val(id, *val);
+ /* Don't allow setting breakpoints in hypervisor code */
+ if ((vcpu->arch.ciabr & CIABR_PRIV) == CIABR_PRIV_HYPER)
+ vcpu->arch.ciabr &= ~CIABR_PRIV; /* disable */
+ break;
+ case KVM_REG_PPC_IC:
+ vcpu->arch.ic = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_VTB:
+ vcpu->arch.vtb = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_CSIGR:
+ vcpu->arch.csigr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_TACR:
+ vcpu->arch.tacr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_TCSCR:
+ vcpu->arch.tcscr = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_PID:
+ vcpu->arch.pid = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_ACOP:
+ vcpu->arch.acop = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_WORT:
+ vcpu->arch.wort = set_reg_val(id, *val);
break;
-#endif /* CONFIG_VSX */
case KVM_REG_PPC_VPA_ADDR:
addr = set_reg_val(id, *val);
r = -EINVAL;
@@ -1017,6 +1184,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
spin_lock_init(&vcpu->arch.vpa_update_lock);
spin_lock_init(&vcpu->arch.tbacct_lock);
vcpu->arch.busy_preempt = TB_NIL;
+ vcpu->arch.intr_msr = MSR_SF | MSR_ME;
kvmppc_mmu_book3s_hv_init(vcpu);
@@ -1034,6 +1202,8 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
init_waitqueue_head(&vcore->wq);
vcore->preempt_tb = TB_NIL;
vcore->lpcr = kvm->arch.lpcr;
+ vcore->first_vcpuid = core * threads_per_core;
+ vcore->kvm = kvm;
}
kvm->arch.vcores[core] = vcore;
kvm->arch.online_vcores++;
@@ -1047,6 +1217,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
++vcore->num_threads;
spin_unlock(&vcore->lock);
vcpu->arch.vcore = vcore;
+ vcpu->arch.ptid = vcpu->vcpu_id - vcore->first_vcpuid;
vcpu->arch.cpu_type = KVM_CPU_3S_64;
kvmppc_sanity_check(vcpu);
@@ -1110,7 +1281,7 @@ static void kvmppc_end_cede(struct kvm_vcpu *vcpu)
}
}
-extern int __kvmppc_vcore_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
+extern void __kvmppc_vcore_entry(void);
static void kvmppc_remove_runnable(struct kvmppc_vcore *vc,
struct kvm_vcpu *vcpu)
@@ -1184,13 +1355,16 @@ static void kvmppc_start_thread(struct kvm_vcpu *vcpu)
tpaca = &paca[cpu];
tpaca->kvm_hstate.kvm_vcpu = vcpu;
tpaca->kvm_hstate.kvm_vcore = vc;
- tpaca->kvm_hstate.napping = 0;
+ tpaca->kvm_hstate.ptid = vcpu->arch.ptid;
vcpu->cpu = vc->pcpu;
smp_wmb();
#if defined(CONFIG_PPC_ICP_NATIVE) && defined(CONFIG_SMP)
- if (vcpu->arch.ptid) {
+ if (cpu != smp_processor_id()) {
+#ifdef CONFIG_KVM_XICS
xics_wake_cpu(cpu);
- ++vc->n_woken;
+#endif
+ if (vcpu->arch.ptid)
+ ++vc->n_woken;
}
#endif
}
@@ -1247,10 +1421,10 @@ static int on_primary_thread(void)
*/
static void kvmppc_run_core(struct kvmppc_vcore *vc)
{
- struct kvm_vcpu *vcpu, *vcpu0, *vnext;
+ struct kvm_vcpu *vcpu, *vnext;
long ret;
u64 now;
- int ptid, i, need_vpa_update;
+ int i, need_vpa_update;
int srcu_idx;
struct kvm_vcpu *vcpus_to_update[threads_per_core];
@@ -1288,25 +1462,6 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
}
/*
- * Assign physical thread IDs, first to non-ceded vcpus
- * and then to ceded ones.
- */
- ptid = 0;
- vcpu0 = NULL;
- list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) {
- if (!vcpu->arch.ceded) {
- if (!ptid)
- vcpu0 = vcpu;
- vcpu->arch.ptid = ptid++;
- }
- }
- if (!vcpu0)
- goto out; /* nothing to run; should never happen */
- list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list)
- if (vcpu->arch.ceded)
- vcpu->arch.ptid = ptid++;
-
- /*
* Make sure we are running on thread 0, and that
* secondary threads are offline.
*/
@@ -1322,15 +1477,19 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
kvmppc_create_dtl_entry(vcpu, vc);
}
+ /* Set this explicitly in case thread 0 doesn't have a vcpu */
+ get_paca()->kvm_hstate.kvm_vcore = vc;
+ get_paca()->kvm_hstate.ptid = 0;
+
vc->vcore_state = VCORE_RUNNING;
preempt_disable();
spin_unlock(&vc->lock);
kvm_guest_enter();
- srcu_idx = srcu_read_lock(&vcpu0->kvm->srcu);
+ srcu_idx = srcu_read_lock(&vc->kvm->srcu);
- __kvmppc_vcore_entry(NULL, vcpu0);
+ __kvmppc_vcore_entry();
spin_lock(&vc->lock);
/* disable sending of IPIs on virtual external irqs */
@@ -1345,7 +1504,7 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
vc->vcore_state = VCORE_EXITING;
spin_unlock(&vc->lock);
- srcu_read_unlock(&vcpu0->kvm->srcu, srcu_idx);
+ srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
/* make sure updates to secondary vcpu structs are visible now */
smp_mb();
@@ -1453,7 +1612,6 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
if (!signal_pending(current)) {
if (vc->vcore_state == VCORE_RUNNING &&
VCORE_EXIT_COUNT(vc) == 0) {
- vcpu->arch.ptid = vc->n_runnable - 1;
kvmppc_create_dtl_entry(vcpu, vc);
kvmppc_start_thread(vcpu);
} else if (vc->vcore_state == VCORE_SLEEPING) {
@@ -2048,6 +2206,9 @@ static int kvmppc_core_init_vm_hv(struct kvm *kvm)
LPCR_VPM0 | LPCR_VPM1;
kvm->arch.vrma_slb_v = SLB_VSID_B_1T |
(VRMA_VSID << SLB_VSID_SHIFT_1T);
+ /* On POWER8 turn on online bit to enable PURR/SPURR */
+ if (cpu_has_feature(CPU_FTR_ARCH_207S))
+ lpcr |= LPCR_ONL;
}
kvm->arch.lpcr = lpcr;
@@ -2222,3 +2383,5 @@ static void kvmppc_book3s_exit_hv(void)
module_init(kvmppc_book3s_init_hv);
module_exit(kvmppc_book3s_exit_hv);
MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/book3s_hv_interrupts.S b/arch/powerpc/kvm/book3s_hv_interrupts.S
index 928142c..e873796 100644
--- a/arch/powerpc/kvm/book3s_hv_interrupts.S
+++ b/arch/powerpc/kvm/book3s_hv_interrupts.S
@@ -35,7 +35,7 @@
****************************************************************************/
/* Registers:
- * r4: vcpu pointer
+ * none
*/
_GLOBAL(__kvmppc_vcore_entry)
@@ -57,9 +57,11 @@ BEGIN_FTR_SECTION
std r3, HSTATE_DSCR(r13)
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+BEGIN_FTR_SECTION
/* Save host DABR */
mfspr r3, SPRN_DABR
std r3, HSTATE_DABR(r13)
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
/* Hard-disable interrupts */
mfmsr r10
@@ -69,7 +71,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
mtmsrd r10,1
/* Save host PMU registers */
- /* R4 is live here (vcpu pointer) but not r3 or r5 */
li r3, 1
sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
mfspr r7, SPRN_MMCR0 /* save MMCR0 */
@@ -134,16 +135,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
* enters the guest with interrupts enabled.
*/
BEGIN_FTR_SECTION
+ ld r4, HSTATE_KVM_VCPU(r13)
ld r0, VCPU_PENDING_EXC(r4)
li r7, (1 << BOOK3S_IRQPRIO_EXTERNAL)
oris r7, r7, (1 << BOOK3S_IRQPRIO_EXTERNAL_LEVEL)@h
and. r0, r0, r7
beq 32f
- mr r31, r4
lhz r3, PACAPACAINDEX(r13)
bl smp_send_reschedule
nop
- mr r4, r31
32:
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
#endif /* CONFIG_SMP */
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 8689e2e..37fb3ca 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -134,7 +134,7 @@ static void remove_revmap_chain(struct kvm *kvm, long pte_index,
unlock_rmap(rmap);
}
-static pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva,
+static pte_t lookup_linux_pte_and_update(pgd_t *pgdir, unsigned long hva,
int writing, unsigned long *pte_sizep)
{
pte_t *ptep;
@@ -232,7 +232,8 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
/* Look up the Linux PTE for the backing page */
pte_size = psize;
- pte = lookup_linux_pte(pgdir, hva, writing, &pte_size);
+ pte = lookup_linux_pte_and_update(pgdir, hva, writing,
+ &pte_size);
if (pte_present(pte)) {
if (writing && !pte_write(pte))
/* make the actual HPTE be read-only */
@@ -672,7 +673,8 @@ long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
memslot = __gfn_to_memslot(kvm_memslots(kvm), gfn);
if (memslot) {
hva = __gfn_to_hva_memslot(memslot, gfn);
- pte = lookup_linux_pte(pgdir, hva, 1, &psize);
+ pte = lookup_linux_pte_and_update(pgdir, hva,
+ 1, &psize);
if (pte_present(pte) && !pte_write(pte))
r = hpte_make_readonly(r);
}
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index be4fa04a..e66d4ec 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -33,6 +33,10 @@
#error Need to fix lppaca and SLB shadow accesses in little endian mode
#endif
+/* Values in HSTATE_NAPPING(r13) */
+#define NAPPING_CEDE 1
+#define NAPPING_NOVCPU 2
+
/*
* Call kvmppc_hv_entry in real mode.
* Must be called with interrupts hard-disabled.
@@ -57,29 +61,23 @@ _GLOBAL(kvmppc_hv_entry_trampoline)
RFI
kvmppc_call_hv_entry:
+ ld r4, HSTATE_KVM_VCPU(r13)
bl kvmppc_hv_entry
/* Back from guest - restore host state and return to caller */
+BEGIN_FTR_SECTION
/* Restore host DABR and DABRX */
ld r5,HSTATE_DABR(r13)
li r6,7
mtspr SPRN_DABR,r5
mtspr SPRN_DABRX,r6
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
/* Restore SPRG3 */
ld r3,PACA_SPRG3(r13)
mtspr SPRN_SPRG3,r3
- /*
- * Reload DEC. HDEC interrupts were disabled when
- * we reloaded the host's LPCR value.
- */
- ld r3, HSTATE_DECEXP(r13)
- mftb r4
- subf r4, r4, r3
- mtspr SPRN_DEC, r4
-
/* Reload the host's PMU registers */
ld r3, PACALPPACAPTR(r13) /* is the host using the PMU? */
lbz r4, LPPACA_PMCINUSE(r3)
@@ -115,6 +113,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
23:
/*
+ * Reload DEC. HDEC interrupts were disabled when
+ * we reloaded the host's LPCR value.
+ */
+ ld r3, HSTATE_DECEXP(r13)
+ mftb r4
+ subf r4, r4, r3
+ mtspr SPRN_DEC, r4
+
+ /*
* For external and machine check interrupts, we need
* to call the Linux handler to process the interrupt.
* We do that by jumping to absolute address 0x500 for
@@ -153,15 +160,75 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
13: b machine_check_fwnmi
+kvmppc_primary_no_guest:
+ /* We handle this much like a ceded vcpu */
+ /* set our bit in napping_threads */
+ ld r5, HSTATE_KVM_VCORE(r13)
+ lbz r7, HSTATE_PTID(r13)
+ li r0, 1
+ sld r0, r0, r7
+ addi r6, r5, VCORE_NAPPING_THREADS
+1: lwarx r3, 0, r6
+ or r3, r3, r0
+ stwcx. r3, 0, r6
+ bne 1b
+ /* order napping_threads update vs testing entry_exit_count */
+ isync
+ li r12, 0
+ lwz r7, VCORE_ENTRY_EXIT(r5)
+ cmpwi r7, 0x100
+ bge kvm_novcpu_exit /* another thread already exiting */
+ li r3, NAPPING_NOVCPU
+ stb r3, HSTATE_NAPPING(r13)
+ li r3, 1
+ stb r3, HSTATE_HWTHREAD_REQ(r13)
+
+ b kvm_do_nap
+
+kvm_novcpu_wakeup:
+ ld r1, HSTATE_HOST_R1(r13)
+ ld r5, HSTATE_KVM_VCORE(r13)
+ li r0, 0
+ stb r0, HSTATE_NAPPING(r13)
+ stb r0, HSTATE_HWTHREAD_REQ(r13)
+
+ /* check the wake reason */
+ bl kvmppc_check_wake_reason
+
+ /* see if any other thread is already exiting */
+ lwz r0, VCORE_ENTRY_EXIT(r5)
+ cmpwi r0, 0x100
+ bge kvm_novcpu_exit
+
+ /* clear our bit in napping_threads */
+ lbz r7, HSTATE_PTID(r13)
+ li r0, 1
+ sld r0, r0, r7
+ addi r6, r5, VCORE_NAPPING_THREADS
+4: lwarx r7, 0, r6
+ andc r7, r7, r0
+ stwcx. r7, 0, r6
+ bne 4b
+
+ /* See if the wake reason means we need to exit */
+ cmpdi r3, 0
+ bge kvm_novcpu_exit
+
+ /* Got an IPI but other vcpus aren't yet exiting, must be a latecomer */
+ ld r4, HSTATE_KVM_VCPU(r13)
+ cmpdi r4, 0
+ bne kvmppc_got_guest
+
+kvm_novcpu_exit:
+ b hdec_soon
+
/*
- * We come in here when wakened from nap mode on a secondary hw thread.
+ * We come in here when wakened from nap mode.
* Relocation is off and most register values are lost.
* r13 points to the PACA.
*/
.globl kvm_start_guest
kvm_start_guest:
- ld r1,PACAEMERGSP(r13)
- subi r1,r1,STACK_FRAME_OVERHEAD
ld r2,PACATOC(r13)
li r0,KVM_HWTHREAD_IN_KVM
@@ -173,8 +240,13 @@ kvm_start_guest:
/* were we napping due to cede? */
lbz r0,HSTATE_NAPPING(r13)
- cmpwi r0,0
- bne kvm_end_cede
+ cmpwi r0,NAPPING_CEDE
+ beq kvm_end_cede
+ cmpwi r0,NAPPING_NOVCPU
+ beq kvm_novcpu_wakeup
+
+ ld r1,PACAEMERGSP(r13)
+ subi r1,r1,STACK_FRAME_OVERHEAD
/*
* We weren't napping due to cede, so this must be a secondary
@@ -184,40 +256,22 @@ kvm_start_guest:
*/
/* Check the wake reason in SRR1 to see why we got here */
- mfspr r3,SPRN_SRR1
- rlwinm r3,r3,44-31,0x7 /* extract wake reason field */
- cmpwi r3,4 /* was it an external interrupt? */
- bne 27f /* if not */
- ld r5,HSTATE_XICS_PHYS(r13)
- li r7,XICS_XIRR /* if it was an external interrupt, */
- lwzcix r8,r5,r7 /* get and ack the interrupt */
- sync
- clrldi. r9,r8,40 /* get interrupt source ID. */
- beq 28f /* none there? */
- cmpwi r9,XICS_IPI /* was it an IPI? */
- bne 29f
- li r0,0xff
- li r6,XICS_MFRR
- stbcix r0,r5,r6 /* clear IPI */
- stwcix r8,r5,r7 /* EOI the interrupt */
- sync /* order loading of vcpu after that */
+ bl kvmppc_check_wake_reason
+ cmpdi r3, 0
+ bge kvm_no_guest
/* get vcpu pointer, NULL if we have no vcpu to run */
ld r4,HSTATE_KVM_VCPU(r13)
cmpdi r4,0
/* if we have no vcpu to run, go back to sleep */
beq kvm_no_guest
- b 30f
-27: /* XXX should handle hypervisor maintenance interrupts etc. here */
- b kvm_no_guest
-28: /* SRR1 said external but ICP said nope?? */
- b kvm_no_guest
-29: /* External non-IPI interrupt to offline secondary thread? help?? */
- stw r8,HSTATE_SAVED_XIRR(r13)
- b kvm_no_guest
+ /* Set HSTATE_DSCR(r13) to something sensible */
+ LOAD_REG_ADDR(r6, dscr_default)
+ ld r6, 0(r6)
+ std r6, HSTATE_DSCR(r13)
-30: bl kvmppc_hv_entry
+ bl kvmppc_hv_entry
/* Back from the guest, go back to nap */
/* Clear our vcpu pointer so we don't come back in early */
@@ -229,18 +283,6 @@ kvm_start_guest:
* visible we could be given another vcpu.
*/
lwsync
- /* Clear any pending IPI - we're an offline thread */
- ld r5, HSTATE_XICS_PHYS(r13)
- li r7, XICS_XIRR
- lwzcix r3, r5, r7 /* ack any pending interrupt */
- rlwinm. r0, r3, 0, 0xffffff /* any pending? */
- beq 37f
- sync
- li r0, 0xff
- li r6, XICS_MFRR
- stbcix r0, r5, r6 /* clear the IPI */
- stwcix r3, r5, r7 /* EOI it */
-37: sync
/* increment the nap count and then go to nap mode */
ld r4, HSTATE_KVM_VCORE(r13)
@@ -253,6 +295,7 @@ kvm_start_guest:
kvm_no_guest:
li r0, KVM_HWTHREAD_IN_NAP
stb r0, HSTATE_HWTHREAD_STATE(r13)
+kvm_do_nap:
li r3, LPCR_PECE0
mfspr r4, SPRN_LPCR
rlwimi r4, r3, 0, LPCR_PECE0 | LPCR_PECE1
@@ -277,7 +320,7 @@ kvmppc_hv_entry:
/* Required state:
*
- * R4 = vcpu pointer
+ * R4 = vcpu pointer (or NULL)
* MSR = ~IR|DR
* R13 = PACA
* R1 = host R1
@@ -287,122 +330,12 @@ kvmppc_hv_entry:
std r0, PPC_LR_STKOFF(r1)
stdu r1, -112(r1)
- /* Set partition DABR */
- /* Do this before re-enabling PMU to avoid P7 DABR corruption bug */
- li r5,3
- ld r6,VCPU_DABR(r4)
- mtspr SPRN_DABRX,r5
- mtspr SPRN_DABR,r6
-BEGIN_FTR_SECTION
- isync
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
- /* Load guest PMU registers */
- /* R4 is live here (vcpu pointer) */
- li r3, 1
- sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
- mtspr SPRN_MMCR0, r3 /* freeze all counters, disable ints */
- isync
- lwz r3, VCPU_PMC(r4) /* always load up guest PMU registers */
- lwz r5, VCPU_PMC + 4(r4) /* to prevent information leak */
- lwz r6, VCPU_PMC + 8(r4)
- lwz r7, VCPU_PMC + 12(r4)
- lwz r8, VCPU_PMC + 16(r4)
- lwz r9, VCPU_PMC + 20(r4)
-BEGIN_FTR_SECTION
- lwz r10, VCPU_PMC + 24(r4)
- lwz r11, VCPU_PMC + 28(r4)
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
- mtspr SPRN_PMC1, r3
- mtspr SPRN_PMC2, r5
- mtspr SPRN_PMC3, r6
- mtspr SPRN_PMC4, r7
- mtspr SPRN_PMC5, r8
- mtspr SPRN_PMC6, r9
-BEGIN_FTR_SECTION
- mtspr SPRN_PMC7, r10
- mtspr SPRN_PMC8, r11
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
- ld r3, VCPU_MMCR(r4)
- ld r5, VCPU_MMCR + 8(r4)
- ld r6, VCPU_MMCR + 16(r4)
- ld r7, VCPU_SIAR(r4)
- ld r8, VCPU_SDAR(r4)
- mtspr SPRN_MMCR1, r5
- mtspr SPRN_MMCRA, r6
- mtspr SPRN_SIAR, r7
- mtspr SPRN_SDAR, r8
- mtspr SPRN_MMCR0, r3
- isync
-
- /* Load up FP, VMX and VSX registers */
- bl kvmppc_load_fp
-
- ld r14, VCPU_GPR(R14)(r4)
- ld r15, VCPU_GPR(R15)(r4)
- ld r16, VCPU_GPR(R16)(r4)
- ld r17, VCPU_GPR(R17)(r4)
- ld r18, VCPU_GPR(R18)(r4)
- ld r19, VCPU_GPR(R19)(r4)
- ld r20, VCPU_GPR(R20)(r4)
- ld r21, VCPU_GPR(R21)(r4)
- ld r22, VCPU_GPR(R22)(r4)
- ld r23, VCPU_GPR(R23)(r4)
- ld r24, VCPU_GPR(R24)(r4)
- ld r25, VCPU_GPR(R25)(r4)
- ld r26, VCPU_GPR(R26)(r4)
- ld r27, VCPU_GPR(R27)(r4)
- ld r28, VCPU_GPR(R28)(r4)
- ld r29, VCPU_GPR(R29)(r4)
- ld r30, VCPU_GPR(R30)(r4)
- ld r31, VCPU_GPR(R31)(r4)
-
-BEGIN_FTR_SECTION
- /* Switch DSCR to guest value */
- ld r5, VCPU_DSCR(r4)
- mtspr SPRN_DSCR, r5
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
- /*
- * Set the decrementer to the guest decrementer.
- */
- ld r8,VCPU_DEC_EXPIRES(r4)
- mftb r7
- subf r3,r7,r8
- mtspr SPRN_DEC,r3
- stw r3,VCPU_DEC(r4)
-
- ld r5, VCPU_SPRG0(r4)
- ld r6, VCPU_SPRG1(r4)
- ld r7, VCPU_SPRG2(r4)
- ld r8, VCPU_SPRG3(r4)
- mtspr SPRN_SPRG0, r5
- mtspr SPRN_SPRG1, r6
- mtspr SPRN_SPRG2, r7
- mtspr SPRN_SPRG3, r8
-
/* Save R1 in the PACA */
std r1, HSTATE_HOST_R1(r13)
- /* Load up DAR and DSISR */
- ld r5, VCPU_DAR(r4)
- lwz r6, VCPU_DSISR(r4)
- mtspr SPRN_DAR, r5
- mtspr SPRN_DSISR, r6
-
li r6, KVM_GUEST_MODE_HOST_HV
stb r6, HSTATE_IN_GUEST(r13)
-BEGIN_FTR_SECTION
- /* Restore AMR and UAMOR, set AMOR to all 1s */
- ld r5,VCPU_AMR(r4)
- ld r6,VCPU_UAMOR(r4)
- li r7,-1
- mtspr SPRN_AMR,r5
- mtspr SPRN_UAMOR,r6
- mtspr SPRN_AMOR,r7
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
/* Clear out SLB */
li r6,0
slbmte r6,r6
@@ -428,8 +361,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
bne 21b
/* Primary thread switches to guest partition. */
- ld r9,VCPU_KVM(r4) /* pointer to struct kvm */
- lwz r6,VCPU_PTID(r4)
+ ld r9,VCORE_KVM(r5) /* pointer to struct kvm */
+ lbz r6,HSTATE_PTID(r13)
cmpwi r6,0
bne 20f
ld r6,KVM_SDR1(r9)
@@ -457,7 +390,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
andc r7,r7,r0
stdcx. r7,0,r6
bne 23b
- li r6,128 /* and flush the TLB */
+ /* Flush the TLB of any entries for this LPID */
+ /* use arch 2.07S as a proxy for POWER8 */
+BEGIN_FTR_SECTION
+ li r6,512 /* POWER8 has 512 sets */
+FTR_SECTION_ELSE
+ li r6,128 /* POWER7 has 128 sets */
+ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_207S)
mtctr r6
li r7,0x800 /* IS field = 0b10 */
ptesync
@@ -487,6 +426,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
beq 38f
mtspr SPRN_PCR, r7
38:
+
+BEGIN_FTR_SECTION
+ /* DPDES is shared between threads */
+ ld r8, VCORE_DPDES(r5)
+ mtspr SPRN_DPDES, r8
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
li r0,1
stb r0,VCORE_IN_GUEST(r5) /* signal secondaries to continue */
b 10f
@@ -503,32 +449,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
mtspr SPRN_RMOR,r8
isync
- /* Increment yield count if they have a VPA */
- ld r3, VCPU_VPA(r4)
- cmpdi r3, 0
- beq 25f
- lwz r5, LPPACA_YIELDCOUNT(r3)
- addi r5, r5, 1
- stw r5, LPPACA_YIELDCOUNT(r3)
- li r6, 1
- stb r6, VCPU_VPA_DIRTY(r4)
-25:
/* Check if HDEC expires soon */
mfspr r3,SPRN_HDEC
- cmpwi r3,10
+ cmpwi r3,512 /* 1 microsecond */
li r12,BOOK3S_INTERRUPT_HV_DECREMENTER
- mr r9,r4
blt hdec_soon
-
- /* Save purr/spurr */
- mfspr r5,SPRN_PURR
- mfspr r6,SPRN_SPURR
- std r5,HSTATE_PURR(r13)
- std r6,HSTATE_SPURR(r13)
- ld r7,VCPU_PURR(r4)
- ld r8,VCPU_SPURR(r4)
- mtspr SPRN_PURR,r7
- mtspr SPRN_SPURR,r8
b 31f
/*
@@ -539,7 +464,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
* We also have to invalidate the TLB since its
* entries aren't tagged with the LPID.
*/
-30: ld r9,VCPU_KVM(r4) /* pointer to struct kvm */
+30: ld r5,HSTATE_KVM_VCORE(r13)
+ ld r9,VCORE_KVM(r5) /* pointer to struct kvm */
/* first take native_tlbie_lock */
.section ".toc","aw"
@@ -604,7 +530,6 @@ toc_tlbie_lock:
mfspr r3,SPRN_HDEC
cmpwi r3,10
li r12,BOOK3S_INTERRUPT_HV_DECREMENTER
- mr r9,r4
blt hdec_soon
/* Enable HDEC interrupts */
@@ -619,9 +544,14 @@ toc_tlbie_lock:
mfspr r0,SPRN_HID0
mfspr r0,SPRN_HID0
mfspr r0,SPRN_HID0
+31:
+ /* Do we have a guest vcpu to run? */
+ cmpdi r4, 0
+ beq kvmppc_primary_no_guest
+kvmppc_got_guest:
/* Load up guest SLB entries */
-31: lwz r5,VCPU_SLB_MAX(r4)
+ lwz r5,VCPU_SLB_MAX(r4)
cmpwi r5,0
beq 9f
mtctr r5
@@ -632,6 +562,209 @@ toc_tlbie_lock:
addi r6,r6,VCPU_SLB_SIZE
bdnz 1b
9:
+ /* Increment yield count if they have a VPA */
+ ld r3, VCPU_VPA(r4)
+ cmpdi r3, 0
+ beq 25f
+ lwz r5, LPPACA_YIELDCOUNT(r3)
+ addi r5, r5, 1
+ stw r5, LPPACA_YIELDCOUNT(r3)
+ li r6, 1
+ stb r6, VCPU_VPA_DIRTY(r4)
+25:
+
+BEGIN_FTR_SECTION
+ /* Save purr/spurr */
+ mfspr r5,SPRN_PURR
+ mfspr r6,SPRN_SPURR
+ std r5,HSTATE_PURR(r13)
+ std r6,HSTATE_SPURR(r13)
+ ld r7,VCPU_PURR(r4)
+ ld r8,VCPU_SPURR(r4)
+ mtspr SPRN_PURR,r7
+ mtspr SPRN_SPURR,r8
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+
+BEGIN_FTR_SECTION
+ /* Set partition DABR */
+ /* Do this before re-enabling PMU to avoid P7 DABR corruption bug */
+ lwz r5,VCPU_DABRX(r4)
+ ld r6,VCPU_DABR(r4)
+ mtspr SPRN_DABRX,r5
+ mtspr SPRN_DABR,r6
+ BEGIN_FTR_SECTION_NESTED(89)
+ isync
+ END_FTR_SECTION_NESTED(CPU_FTR_ARCH_206, CPU_FTR_ARCH_206, 89)
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
+
+ /* Load guest PMU registers */
+ /* R4 is live here (vcpu pointer) */
+ li r3, 1
+ sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
+ mtspr SPRN_MMCR0, r3 /* freeze all counters, disable ints */
+ isync
+ lwz r3, VCPU_PMC(r4) /* always load up guest PMU registers */
+ lwz r5, VCPU_PMC + 4(r4) /* to prevent information leak */
+ lwz r6, VCPU_PMC + 8(r4)
+ lwz r7, VCPU_PMC + 12(r4)
+ lwz r8, VCPU_PMC + 16(r4)
+ lwz r9, VCPU_PMC + 20(r4)
+BEGIN_FTR_SECTION
+ lwz r10, VCPU_PMC + 24(r4)
+ lwz r11, VCPU_PMC + 28(r4)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
+ mtspr SPRN_PMC1, r3
+ mtspr SPRN_PMC2, r5
+ mtspr SPRN_PMC3, r6
+ mtspr SPRN_PMC4, r7
+ mtspr SPRN_PMC5, r8
+ mtspr SPRN_PMC6, r9
+BEGIN_FTR_SECTION
+ mtspr SPRN_PMC7, r10
+ mtspr SPRN_PMC8, r11
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
+ ld r3, VCPU_MMCR(r4)
+ ld r5, VCPU_MMCR + 8(r4)
+ ld r6, VCPU_MMCR + 16(r4)
+ ld r7, VCPU_SIAR(r4)
+ ld r8, VCPU_SDAR(r4)
+ mtspr SPRN_MMCR1, r5
+ mtspr SPRN_MMCRA, r6
+ mtspr SPRN_SIAR, r7
+ mtspr SPRN_SDAR, r8
+BEGIN_FTR_SECTION
+ ld r5, VCPU_MMCR + 24(r4)
+ ld r6, VCPU_SIER(r4)
+ lwz r7, VCPU_PMC + 24(r4)
+ lwz r8, VCPU_PMC + 28(r4)
+ ld r9, VCPU_MMCR + 32(r4)
+ mtspr SPRN_MMCR2, r5
+ mtspr SPRN_SIER, r6
+ mtspr SPRN_SPMC1, r7
+ mtspr SPRN_SPMC2, r8
+ mtspr SPRN_MMCRS, r9
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+ mtspr SPRN_MMCR0, r3
+ isync
+
+ /* Load up FP, VMX and VSX registers */
+ bl kvmppc_load_fp
+
+ ld r14, VCPU_GPR(R14)(r4)
+ ld r15, VCPU_GPR(R15)(r4)
+ ld r16, VCPU_GPR(R16)(r4)
+ ld r17, VCPU_GPR(R17)(r4)
+ ld r18, VCPU_GPR(R18)(r4)
+ ld r19, VCPU_GPR(R19)(r4)
+ ld r20, VCPU_GPR(R20)(r4)
+ ld r21, VCPU_GPR(R21)(r4)
+ ld r22, VCPU_GPR(R22)(r4)
+ ld r23, VCPU_GPR(R23)(r4)
+ ld r24, VCPU_GPR(R24)(r4)
+ ld r25, VCPU_GPR(R25)(r4)
+ ld r26, VCPU_GPR(R26)(r4)
+ ld r27, VCPU_GPR(R27)(r4)
+ ld r28, VCPU_GPR(R28)(r4)
+ ld r29, VCPU_GPR(R29)(r4)
+ ld r30, VCPU_GPR(R30)(r4)
+ ld r31, VCPU_GPR(R31)(r4)
+
+BEGIN_FTR_SECTION
+ /* Switch DSCR to guest value */
+ ld r5, VCPU_DSCR(r4)
+ mtspr SPRN_DSCR, r5
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+
+BEGIN_FTR_SECTION
+ /* Skip next section on POWER7 or PPC970 */
+ b 8f
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
+ /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
+ mfmsr r8
+ li r0, 1
+ rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG
+ mtmsrd r8
+
+ /* Load up POWER8-specific registers */
+ ld r5, VCPU_IAMR(r4)
+ lwz r6, VCPU_PSPB(r4)
+ ld r7, VCPU_FSCR(r4)
+ mtspr SPRN_IAMR, r5
+ mtspr SPRN_PSPB, r6
+ mtspr SPRN_FSCR, r7
+ ld r5, VCPU_DAWR(r4)
+ ld r6, VCPU_DAWRX(r4)
+ ld r7, VCPU_CIABR(r4)
+ ld r8, VCPU_TAR(r4)
+ mtspr SPRN_DAWR, r5
+ mtspr SPRN_DAWRX, r6
+ mtspr SPRN_CIABR, r7
+ mtspr SPRN_TAR, r8
+ ld r5, VCPU_IC(r4)
+ ld r6, VCPU_VTB(r4)
+ mtspr SPRN_IC, r5
+ mtspr SPRN_VTB, r6
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ ld r5, VCPU_TFHAR(r4)
+ ld r6, VCPU_TFIAR(r4)
+ ld r7, VCPU_TEXASR(r4)
+ mtspr SPRN_TFHAR, r5
+ mtspr SPRN_TFIAR, r6
+ mtspr SPRN_TEXASR, r7
+#endif
+ ld r8, VCPU_EBBHR(r4)
+ mtspr SPRN_EBBHR, r8
+ ld r5, VCPU_EBBRR(r4)
+ ld r6, VCPU_BESCR(r4)
+ ld r7, VCPU_CSIGR(r4)
+ ld r8, VCPU_TACR(r4)
+ mtspr SPRN_EBBRR, r5
+ mtspr SPRN_BESCR, r6
+ mtspr SPRN_CSIGR, r7
+ mtspr SPRN_TACR, r8
+ ld r5, VCPU_TCSCR(r4)
+ ld r6, VCPU_ACOP(r4)
+ lwz r7, VCPU_GUEST_PID(r4)
+ ld r8, VCPU_WORT(r4)
+ mtspr SPRN_TCSCR, r5
+ mtspr SPRN_ACOP, r6
+ mtspr SPRN_PID, r7
+ mtspr SPRN_WORT, r8
+8:
+
+ /*
+ * Set the decrementer to the guest decrementer.
+ */
+ ld r8,VCPU_DEC_EXPIRES(r4)
+ mftb r7
+ subf r3,r7,r8
+ mtspr SPRN_DEC,r3
+ stw r3,VCPU_DEC(r4)
+
+ ld r5, VCPU_SPRG0(r4)
+ ld r6, VCPU_SPRG1(r4)
+ ld r7, VCPU_SPRG2(r4)
+ ld r8, VCPU_SPRG3(r4)
+ mtspr SPRN_SPRG0, r5
+ mtspr SPRN_SPRG1, r6
+ mtspr SPRN_SPRG2, r7
+ mtspr SPRN_SPRG3, r8
+
+ /* Load up DAR and DSISR */
+ ld r5, VCPU_DAR(r4)
+ lwz r6, VCPU_DSISR(r4)
+ mtspr SPRN_DAR, r5
+ mtspr SPRN_DSISR, r6
+
+BEGIN_FTR_SECTION
+ /* Restore AMR and UAMOR, set AMOR to all 1s */
+ ld r5,VCPU_AMR(r4)
+ ld r6,VCPU_UAMOR(r4)
+ li r7,-1
+ mtspr SPRN_AMR,r5
+ mtspr SPRN_UAMOR,r6
+ mtspr SPRN_AMOR,r7
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
/* Restore state of CTRL run bit; assume 1 on entry */
lwz r5,VCPU_CTRL(r4)
@@ -647,48 +780,53 @@ toc_tlbie_lock:
mtctr r6
mtxer r7
+kvmppc_cede_reentry: /* r4 = vcpu, r13 = paca */
ld r10, VCPU_PC(r4)
ld r11, VCPU_MSR(r4)
-kvmppc_cede_reentry: /* r4 = vcpu, r13 = paca */
ld r6, VCPU_SRR0(r4)
ld r7, VCPU_SRR1(r4)
+ mtspr SPRN_SRR0, r6
+ mtspr SPRN_SRR1, r7
+deliver_guest_interrupt:
/* r11 = vcpu->arch.msr & ~MSR_HV */
rldicl r11, r11, 63 - MSR_HV_LG, 1
rotldi r11, r11, 1 + MSR_HV_LG
ori r11, r11, MSR_ME
/* Check if we can deliver an external or decrementer interrupt now */
- ld r0,VCPU_PENDING_EXC(r4)
- lis r8,(1 << BOOK3S_IRQPRIO_EXTERNAL_LEVEL)@h
- and r0,r0,r8
- cmpdi cr1,r0,0
- andi. r0,r11,MSR_EE
- beq cr1,11f
+ ld r0, VCPU_PENDING_EXC(r4)
+ rldicl r0, r0, 64 - BOOK3S_IRQPRIO_EXTERNAL_LEVEL, 63
+ cmpdi cr1, r0, 0
+ andi. r8, r11, MSR_EE
BEGIN_FTR_SECTION
- mfspr r8,SPRN_LPCR
- ori r8,r8,LPCR_MER
- mtspr SPRN_LPCR,r8
+ mfspr r8, SPRN_LPCR
+ /* Insert EXTERNAL_LEVEL bit into LPCR at the MER bit position */
+ rldimi r8, r0, LPCR_MER_SH, 63 - LPCR_MER_SH
+ mtspr SPRN_LPCR, r8
isync
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
beq 5f
- li r0,BOOK3S_INTERRUPT_EXTERNAL
-12: mr r6,r10
- mr r10,r0
- mr r7,r11
- li r11,(MSR_ME << 1) | 1 /* synthesize MSR_SF | MSR_ME */
- rotldi r11,r11,63
- b 5f
-11: beq 5f
- mfspr r0,SPRN_DEC
- cmpwi r0,0
- li r0,BOOK3S_INTERRUPT_DECREMENTER
- blt 12b
+ li r0, BOOK3S_INTERRUPT_EXTERNAL
+ bne cr1, 12f
+ mfspr r0, SPRN_DEC
+ cmpwi r0, 0
+ li r0, BOOK3S_INTERRUPT_DECREMENTER
+ bge 5f
- /* Move SRR0 and SRR1 into the respective regs */
-5: mtspr SPRN_SRR0, r6
- mtspr SPRN_SRR1, r7
+12: mtspr SPRN_SRR0, r10
+ mr r10,r0
+ mtspr SPRN_SRR1, r11
+ ld r11, VCPU_INTR_MSR(r4)
+5:
+/*
+ * Required state:
+ * R4 = vcpu
+ * R10: value for HSRR0
+ * R11: value for HSRR1
+ * R13 = PACA
+ */
fast_guest_return:
li r0,0
stb r0,VCPU_CEDED(r4) /* cancel cede */
@@ -868,39 +1006,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
/* External interrupt, first check for host_ipi. If this is
* set, we know the host wants us out so let's do it now
*/
-do_ext_interrupt:
bl kvmppc_read_intr
cmpdi r3, 0
bgt ext_interrupt_to_host
- /* Allright, looks like an IPI for the guest, we need to set MER */
/* Check if any CPU is heading out to the host, if so head out too */
ld r5, HSTATE_KVM_VCORE(r13)
lwz r0, VCORE_ENTRY_EXIT(r5)
cmpwi r0, 0x100
bge ext_interrupt_to_host
- /* See if there is a pending interrupt for the guest */
- mfspr r8, SPRN_LPCR
- ld r0, VCPU_PENDING_EXC(r9)
- /* Insert EXTERNAL_LEVEL bit into LPCR at the MER bit position */
- rldicl. r0, r0, 64 - BOOK3S_IRQPRIO_EXTERNAL_LEVEL, 63
- rldimi r8, r0, LPCR_MER_SH, 63 - LPCR_MER_SH
- beq 2f
-
- /* And if the guest EE is set, we can deliver immediately, else
- * we return to the guest with MER set
- */
- andi. r0, r11, MSR_EE
- beq 2f
- mtspr SPRN_SRR0, r10
- mtspr SPRN_SRR1, r11
- li r10, BOOK3S_INTERRUPT_EXTERNAL
- li r11, (MSR_ME << 1) | 1 /* synthesize MSR_SF | MSR_ME */
- rotldi r11, r11, 63
-2: mr r4, r9
- mtspr SPRN_LPCR, r8
- b fast_guest_return
+ /* Return to guest after delivering any pending interrupt */
+ mr r4, r9
+ b deliver_guest_interrupt
ext_interrupt_to_host:
@@ -975,13 +1093,194 @@ BEGIN_FTR_SECTION
mtspr SPRN_SPURR,r4
END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_201)
+ /* Save DEC */
+ mfspr r5,SPRN_DEC
+ mftb r6
+ extsw r5,r5
+ add r5,r5,r6
+ std r5,VCPU_DEC_EXPIRES(r9)
+
+BEGIN_FTR_SECTION
+ b 8f
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
+ /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
+ mfmsr r8
+ li r0, 1
+ rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG
+ mtmsrd r8
+
+ /* Save POWER8-specific registers */
+ mfspr r5, SPRN_IAMR
+ mfspr r6, SPRN_PSPB
+ mfspr r7, SPRN_FSCR
+ std r5, VCPU_IAMR(r9)
+ stw r6, VCPU_PSPB(r9)
+ std r7, VCPU_FSCR(r9)
+ mfspr r5, SPRN_IC
+ mfspr r6, SPRN_VTB
+ mfspr r7, SPRN_TAR
+ std r5, VCPU_IC(r9)
+ std r6, VCPU_VTB(r9)
+ std r7, VCPU_TAR(r9)
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ mfspr r5, SPRN_TFHAR
+ mfspr r6, SPRN_TFIAR
+ mfspr r7, SPRN_TEXASR
+ std r5, VCPU_TFHAR(r9)
+ std r6, VCPU_TFIAR(r9)
+ std r7, VCPU_TEXASR(r9)
+#endif
+ mfspr r8, SPRN_EBBHR
+ std r8, VCPU_EBBHR(r9)
+ mfspr r5, SPRN_EBBRR
+ mfspr r6, SPRN_BESCR
+ mfspr r7, SPRN_CSIGR
+ mfspr r8, SPRN_TACR
+ std r5, VCPU_EBBRR(r9)
+ std r6, VCPU_BESCR(r9)
+ std r7, VCPU_CSIGR(r9)
+ std r8, VCPU_TACR(r9)
+ mfspr r5, SPRN_TCSCR
+ mfspr r6, SPRN_ACOP
+ mfspr r7, SPRN_PID
+ mfspr r8, SPRN_WORT
+ std r5, VCPU_TCSCR(r9)
+ std r6, VCPU_ACOP(r9)
+ stw r7, VCPU_GUEST_PID(r9)
+ std r8, VCPU_WORT(r9)
+8:
+
+ /* Save and reset AMR and UAMOR before turning on the MMU */
+BEGIN_FTR_SECTION
+ mfspr r5,SPRN_AMR
+ mfspr r6,SPRN_UAMOR
+ std r5,VCPU_AMR(r9)
+ std r6,VCPU_UAMOR(r9)
+ li r6,0
+ mtspr SPRN_AMR,r6
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+
+ /* Switch DSCR back to host value */
+BEGIN_FTR_SECTION
+ mfspr r8, SPRN_DSCR
+ ld r7, HSTATE_DSCR(r13)
+ std r8, VCPU_DSCR(r9)
+ mtspr SPRN_DSCR, r7
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+
+ /* Save non-volatile GPRs */
+ std r14, VCPU_GPR(R14)(r9)
+ std r15, VCPU_GPR(R15)(r9)
+ std r16, VCPU_GPR(R16)(r9)
+ std r17, VCPU_GPR(R17)(r9)
+ std r18, VCPU_GPR(R18)(r9)
+ std r19, VCPU_GPR(R19)(r9)
+ std r20, VCPU_GPR(R20)(r9)
+ std r21, VCPU_GPR(R21)(r9)
+ std r22, VCPU_GPR(R22)(r9)
+ std r23, VCPU_GPR(R23)(r9)
+ std r24, VCPU_GPR(R24)(r9)
+ std r25, VCPU_GPR(R25)(r9)
+ std r26, VCPU_GPR(R26)(r9)
+ std r27, VCPU_GPR(R27)(r9)
+ std r28, VCPU_GPR(R28)(r9)
+ std r29, VCPU_GPR(R29)(r9)
+ std r30, VCPU_GPR(R30)(r9)
+ std r31, VCPU_GPR(R31)(r9)
+
+ /* Save SPRGs */
+ mfspr r3, SPRN_SPRG0
+ mfspr r4, SPRN_SPRG1
+ mfspr r5, SPRN_SPRG2
+ mfspr r6, SPRN_SPRG3
+ std r3, VCPU_SPRG0(r9)
+ std r4, VCPU_SPRG1(r9)
+ std r5, VCPU_SPRG2(r9)
+ std r6, VCPU_SPRG3(r9)
+
+ /* save FP state */
+ mr r3, r9
+ bl kvmppc_save_fp
+
+ /* Increment yield count if they have a VPA */
+ ld r8, VCPU_VPA(r9) /* do they have a VPA? */
+ cmpdi r8, 0
+ beq 25f
+ lwz r3, LPPACA_YIELDCOUNT(r8)
+ addi r3, r3, 1
+ stw r3, LPPACA_YIELDCOUNT(r8)
+ li r3, 1
+ stb r3, VCPU_VPA_DIRTY(r9)
+25:
+ /* Save PMU registers if requested */
+ /* r8 and cr0.eq are live here */
+ li r3, 1
+ sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
+ mfspr r4, SPRN_MMCR0 /* save MMCR0 */
+ mtspr SPRN_MMCR0, r3 /* freeze all counters, disable ints */
+ mfspr r6, SPRN_MMCRA
+BEGIN_FTR_SECTION
+ /* On P7, clear MMCRA in order to disable SDAR updates */
+ li r7, 0
+ mtspr SPRN_MMCRA, r7
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+ isync
+ beq 21f /* if no VPA, save PMU stuff anyway */
+ lbz r7, LPPACA_PMCINUSE(r8)
+ cmpwi r7, 0 /* did they ask for PMU stuff to be saved? */
+ bne 21f
+ std r3, VCPU_MMCR(r9) /* if not, set saved MMCR0 to FC */
+ b 22f
+21: mfspr r5, SPRN_MMCR1
+ mfspr r7, SPRN_SIAR
+ mfspr r8, SPRN_SDAR
+ std r4, VCPU_MMCR(r9)
+ std r5, VCPU_MMCR + 8(r9)
+ std r6, VCPU_MMCR + 16(r9)
+ std r7, VCPU_SIAR(r9)
+ std r8, VCPU_SDAR(r9)
+ mfspr r3, SPRN_PMC1
+ mfspr r4, SPRN_PMC2
+ mfspr r5, SPRN_PMC3
+ mfspr r6, SPRN_PMC4
+ mfspr r7, SPRN_PMC5
+ mfspr r8, SPRN_PMC6
+BEGIN_FTR_SECTION
+ mfspr r10, SPRN_PMC7
+ mfspr r11, SPRN_PMC8
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
+ stw r3, VCPU_PMC(r9)
+ stw r4, VCPU_PMC + 4(r9)
+ stw r5, VCPU_PMC + 8(r9)
+ stw r6, VCPU_PMC + 12(r9)
+ stw r7, VCPU_PMC + 16(r9)
+ stw r8, VCPU_PMC + 20(r9)
+BEGIN_FTR_SECTION
+ stw r10, VCPU_PMC + 24(r9)
+ stw r11, VCPU_PMC + 28(r9)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
+BEGIN_FTR_SECTION
+ mfspr r4, SPRN_MMCR2
+ mfspr r5, SPRN_SIER
+ mfspr r6, SPRN_SPMC1
+ mfspr r7, SPRN_SPMC2
+ mfspr r8, SPRN_MMCRS
+ std r4, VCPU_MMCR + 24(r9)
+ std r5, VCPU_SIER(r9)
+ stw r6, VCPU_PMC + 24(r9)
+ stw r7, VCPU_PMC + 28(r9)
+ std r8, VCPU_MMCR + 32(r9)
+ lis r4, 0x8000
+ mtspr SPRN_MMCRS, r4
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+22:
/* Clear out SLB */
li r5,0
slbmte r5,r5
slbia
ptesync
-hdec_soon: /* r9 = vcpu, r12 = trap, r13 = paca */
+hdec_soon: /* r12 = trap, r13 = paca */
BEGIN_FTR_SECTION
b 32f
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
@@ -1014,8 +1313,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
*/
cmpwi r3,0x100 /* Are we the first here? */
bge 43f
- cmpwi r3,1 /* Are any other threads in the guest? */
- ble 43f
cmpwi r12,BOOK3S_INTERRUPT_HV_DECREMENTER
beq 40f
li r0,0
@@ -1026,7 +1323,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
* doesn't wake CPUs up from nap.
*/
lwz r3,VCORE_NAPPING_THREADS(r5)
- lwz r4,VCPU_PTID(r9)
+ lbz r4,HSTATE_PTID(r13)
li r0,1
sld r0,r0,r4
andc. r3,r3,r0 /* no sense IPI'ing ourselves */
@@ -1045,10 +1342,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
addi r6,r6,PACA_SIZE
bne 42b
+secondary_too_late:
/* Secondary threads wait for primary to do partition switch */
-43: ld r4,VCPU_KVM(r9) /* pointer to struct kvm */
- ld r5,HSTATE_KVM_VCORE(r13)
- lwz r3,VCPU_PTID(r9)
+43: ld r5,HSTATE_KVM_VCORE(r13)
+ ld r4,VCORE_KVM(r5) /* pointer to struct kvm */
+ lbz r3,HSTATE_PTID(r13)
cmpwi r3,0
beq 15f
HMT_LOW
@@ -1076,6 +1374,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
mtspr SPRN_LPID,r7
isync
+BEGIN_FTR_SECTION
+ /* DPDES is shared between threads */
+ mfspr r7, SPRN_DPDES
+ std r7, VCORE_DPDES(r5)
+ /* clear DPDES so we don't get guest doorbells in the host */
+ li r8, 0
+ mtspr SPRN_DPDES, r8
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
/* Subtract timebase offset from timebase */
ld r8,VCORE_TB_OFFSET(r5)
cmpdi r8,0
@@ -1113,7 +1420,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
* We have to lock against concurrent tlbies, and
* we have to flush the whole TLB.
*/
-32: ld r4,VCPU_KVM(r9) /* pointer to struct kvm */
+32: ld r5,HSTATE_KVM_VCORE(r13)
+ ld r4,VCORE_KVM(r5) /* pointer to struct kvm */
/* Take the guest's tlbie_lock */
#ifdef __BIG_ENDIAN__
@@ -1203,6 +1511,56 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
add r5,r5,r6
std r5,VCPU_DEC_EXPIRES(r9)
+BEGIN_FTR_SECTION
+ b 8f
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
+ /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
+ mfmsr r8
+ li r0, 1
+ rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG
+ mtmsrd r8
+
+ /* Save POWER8-specific registers */
+ mfspr r5, SPRN_IAMR
+ mfspr r6, SPRN_PSPB
+ mfspr r7, SPRN_FSCR
+ std r5, VCPU_IAMR(r9)
+ stw r6, VCPU_PSPB(r9)
+ std r7, VCPU_FSCR(r9)
+ mfspr r5, SPRN_IC
+ mfspr r6, SPRN_VTB
+ mfspr r7, SPRN_TAR
+ std r5, VCPU_IC(r9)
+ std r6, VCPU_VTB(r9)
+ std r7, VCPU_TAR(r9)
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ mfspr r5, SPRN_TFHAR
+ mfspr r6, SPRN_TFIAR
+ mfspr r7, SPRN_TEXASR
+ std r5, VCPU_TFHAR(r9)
+ std r6, VCPU_TFIAR(r9)
+ std r7, VCPU_TEXASR(r9)
+#endif
+ mfspr r8, SPRN_EBBHR
+ std r8, VCPU_EBBHR(r9)
+ mfspr r5, SPRN_EBBRR
+ mfspr r6, SPRN_BESCR
+ mfspr r7, SPRN_CSIGR
+ mfspr r8, SPRN_TACR
+ std r5, VCPU_EBBRR(r9)
+ std r6, VCPU_BESCR(r9)
+ std r7, VCPU_CSIGR(r9)
+ std r8, VCPU_TACR(r9)
+ mfspr r5, SPRN_TCSCR
+ mfspr r6, SPRN_ACOP
+ mfspr r7, SPRN_PID
+ mfspr r8, SPRN_WORT
+ std r5, VCPU_TCSCR(r9)
+ std r6, VCPU_ACOP(r9)
+ stw r7, VCPU_GUEST_PID(r9)
+ std r8, VCPU_WORT(r9)
+8:
+
/* Save and reset AMR and UAMOR before turning on the MMU */
BEGIN_FTR_SECTION
mfspr r5,SPRN_AMR
@@ -1217,130 +1575,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
li r0, KVM_GUEST_MODE_NONE
stb r0, HSTATE_IN_GUEST(r13)
- /* Switch DSCR back to host value */
-BEGIN_FTR_SECTION
- mfspr r8, SPRN_DSCR
- ld r7, HSTATE_DSCR(r13)
- std r8, VCPU_DSCR(r9)
- mtspr SPRN_DSCR, r7
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
- /* Save non-volatile GPRs */
- std r14, VCPU_GPR(R14)(r9)
- std r15, VCPU_GPR(R15)(r9)
- std r16, VCPU_GPR(R16)(r9)
- std r17, VCPU_GPR(R17)(r9)
- std r18, VCPU_GPR(R18)(r9)
- std r19, VCPU_GPR(R19)(r9)
- std r20, VCPU_GPR(R20)(r9)
- std r21, VCPU_GPR(R21)(r9)
- std r22, VCPU_GPR(R22)(r9)
- std r23, VCPU_GPR(R23)(r9)
- std r24, VCPU_GPR(R24)(r9)
- std r25, VCPU_GPR(R25)(r9)
- std r26, VCPU_GPR(R26)(r9)
- std r27, VCPU_GPR(R27)(r9)
- std r28, VCPU_GPR(R28)(r9)
- std r29, VCPU_GPR(R29)(r9)
- std r30, VCPU_GPR(R30)(r9)
- std r31, VCPU_GPR(R31)(r9)
-
- /* Save SPRGs */
- mfspr r3, SPRN_SPRG0
- mfspr r4, SPRN_SPRG1
- mfspr r5, SPRN_SPRG2
- mfspr r6, SPRN_SPRG3
- std r3, VCPU_SPRG0(r9)
- std r4, VCPU_SPRG1(r9)
- std r5, VCPU_SPRG2(r9)
- std r6, VCPU_SPRG3(r9)
-
- /* save FP state */
- mr r3, r9
- bl .kvmppc_save_fp
-
- /* Increment yield count if they have a VPA */
- ld r8, VCPU_VPA(r9) /* do they have a VPA? */
- cmpdi r8, 0
- beq 25f
- lwz r3, LPPACA_YIELDCOUNT(r8)
- addi r3, r3, 1
- stw r3, LPPACA_YIELDCOUNT(r8)
- li r3, 1
- stb r3, VCPU_VPA_DIRTY(r9)
-25:
- /* Save PMU registers if requested */
- /* r8 and cr0.eq are live here */
- li r3, 1
- sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
- mfspr r4, SPRN_MMCR0 /* save MMCR0 */
- mtspr SPRN_MMCR0, r3 /* freeze all counters, disable ints */
- mfspr r6, SPRN_MMCRA
-BEGIN_FTR_SECTION
- /* On P7, clear MMCRA in order to disable SDAR updates */
- li r7, 0
- mtspr SPRN_MMCRA, r7
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
- isync
- beq 21f /* if no VPA, save PMU stuff anyway */
- lbz r7, LPPACA_PMCINUSE(r8)
- cmpwi r7, 0 /* did they ask for PMU stuff to be saved? */
- bne 21f
- std r3, VCPU_MMCR(r9) /* if not, set saved MMCR0 to FC */
- b 22f
-21: mfspr r5, SPRN_MMCR1
- mfspr r7, SPRN_SIAR
- mfspr r8, SPRN_SDAR
- std r4, VCPU_MMCR(r9)
- std r5, VCPU_MMCR + 8(r9)
- std r6, VCPU_MMCR + 16(r9)
- std r7, VCPU_SIAR(r9)
- std r8, VCPU_SDAR(r9)
- mfspr r3, SPRN_PMC1
- mfspr r4, SPRN_PMC2
- mfspr r5, SPRN_PMC3
- mfspr r6, SPRN_PMC4
- mfspr r7, SPRN_PMC5
- mfspr r8, SPRN_PMC6
-BEGIN_FTR_SECTION
- mfspr r10, SPRN_PMC7
- mfspr r11, SPRN_PMC8
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
- stw r3, VCPU_PMC(r9)
- stw r4, VCPU_PMC + 4(r9)
- stw r5, VCPU_PMC + 8(r9)
- stw r6, VCPU_PMC + 12(r9)
- stw r7, VCPU_PMC + 16(r9)
- stw r8, VCPU_PMC + 20(r9)
-BEGIN_FTR_SECTION
- stw r10, VCPU_PMC + 24(r9)
- stw r11, VCPU_PMC + 28(r9)
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
-22:
ld r0, 112+PPC_LR_STKOFF(r1)
addi r1, r1, 112
mtlr r0
blr
-secondary_too_late:
- ld r5,HSTATE_KVM_VCORE(r13)
- HMT_LOW
-13: lbz r3,VCORE_IN_GUEST(r5)
- cmpwi r3,0
- bne 13b
- HMT_MEDIUM
- li r0, KVM_GUEST_MODE_NONE
- stb r0, HSTATE_IN_GUEST(r13)
- ld r11,PACA_SLBSHADOWPTR(r13)
-
- .rept SLB_NUM_BOLTED
- ld r5,SLBSHADOW_SAVEAREA(r11)
- ld r6,SLBSHADOW_SAVEAREA+8(r11)
- andis. r7,r5,SLB_ESID_V@h
- beq 1f
- slbmte r6,r5
-1: addi r11,r11,16
- .endr
- b 22b
/*
* Check whether an HDSI is an HPTE not found fault or something else.
@@ -1386,8 +1624,7 @@ kvmppc_hdsi:
mtspr SPRN_SRR0, r10
mtspr SPRN_SRR1, r11
li r10, BOOK3S_INTERRUPT_DATA_STORAGE
- li r11, (MSR_ME << 1) | 1 /* synthesize MSR_SF | MSR_ME */
- rotldi r11, r11, 63
+ ld r11, VCPU_INTR_MSR(r9)
fast_interrupt_c_return:
6: ld r7, VCPU_CTR(r9)
lwz r8, VCPU_XER(r9)
@@ -1456,8 +1693,7 @@ kvmppc_hisi:
1: mtspr SPRN_SRR0, r10
mtspr SPRN_SRR1, r11
li r10, BOOK3S_INTERRUPT_INST_STORAGE
- li r11, (MSR_ME << 1) | 1 /* synthesize MSR_SF | MSR_ME */
- rotldi r11, r11, 63
+ ld r11, VCPU_INTR_MSR(r9)
b fast_interrupt_c_return
3: ld r6, VCPU_KVM(r9) /* not relocated, use VRMA */
@@ -1474,7 +1710,8 @@ kvmppc_hisi:
hcall_try_real_mode:
ld r3,VCPU_GPR(R3)(r9)
andi. r0,r11,MSR_PR
- bne guest_exit_cont
+ /* sc 1 from userspace - reflect to guest syscall */
+ bne sc_1_fast_return
clrrdi r3,r3,2
cmpldi r3,hcall_real_table_end - hcall_real_table
bge guest_exit_cont
@@ -1495,6 +1732,14 @@ hcall_try_real_mode:
ld r11,VCPU_MSR(r4)
b fast_guest_return
+sc_1_fast_return:
+ mtspr SPRN_SRR0,r10
+ mtspr SPRN_SRR1,r11
+ li r10, BOOK3S_INTERRUPT_SYSCALL
+ ld r11, VCPU_INTR_MSR(r9)
+ mr r4,r9
+ b fast_guest_return
+
/* We've attempted a real mode hcall, but it's punted it back
* to userspace. We need to restore some clobbered volatiles
* before resuming the pass-it-to-qemu path */
@@ -1588,14 +1833,34 @@ hcall_real_table:
.long 0 /* 0x11c */
.long 0 /* 0x120 */
.long .kvmppc_h_bulk_remove - hcall_real_table
+ .long 0 /* 0x128 */
+ .long 0 /* 0x12c */
+ .long 0 /* 0x130 */
+ .long .kvmppc_h_set_xdabr - hcall_real_table
hcall_real_table_end:
ignore_hdec:
mr r4,r9
b fast_guest_return
+_GLOBAL(kvmppc_h_set_xdabr)
+ andi. r0, r5, DABRX_USER | DABRX_KERNEL
+ beq 6f
+ li r0, DABRX_USER | DABRX_KERNEL | DABRX_BTI
+ andc. r0, r5, r0
+ beq 3f
+6: li r3, H_PARAMETER
+ blr
+
_GLOBAL(kvmppc_h_set_dabr)
+ li r5, DABRX_USER | DABRX_KERNEL
+3:
+BEGIN_FTR_SECTION
+ b 2f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
std r4,VCPU_DABR(r3)
+ stw r5, VCPU_DABRX(r3)
+ mtspr SPRN_DABRX, r5
/* Work around P7 bug where DABR can get corrupted on mtspr */
1: mtspr SPRN_DABR,r4
mfspr r5, SPRN_DABR
@@ -1605,6 +1870,17 @@ _GLOBAL(kvmppc_h_set_dabr)
li r3,0
blr
+ /* Emulate H_SET_DABR/X on P8 for the sake of compat mode guests */
+2: rlwimi r5, r4, 5, DAWRX_DR | DAWRX_DW
+ rlwimi r5, r4, 1, DAWRX_WT
+ clrrdi r4, r4, 3
+ std r4, VCPU_DAWR(r3)
+ std r5, VCPU_DAWRX(r3)
+ mtspr SPRN_DAWR, r4
+ mtspr SPRN_DAWRX, r5
+ li r3, 0
+ blr
+
_GLOBAL(kvmppc_h_cede)
ori r11,r11,MSR_EE
std r11,VCPU_MSR(r3)
@@ -1628,7 +1904,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
* up to the host.
*/
ld r5,HSTATE_KVM_VCORE(r13)
- lwz r6,VCPU_PTID(r3)
+ lbz r6,HSTATE_PTID(r13)
lwz r8,VCORE_ENTRY_EXIT(r5)
clrldi r8,r8,56
li r0,1
@@ -1643,9 +1919,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
bne 31b
/* order napping_threads update vs testing entry_exit_count */
isync
- li r0,1
+ li r0,NAPPING_CEDE
stb r0,HSTATE_NAPPING(r13)
- mr r4,r3
lwz r7,VCORE_ENTRY_EXIT(r5)
cmpwi r7,0x100
bge 33f /* another thread already exiting */
@@ -1677,16 +1952,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
std r31, VCPU_GPR(R31)(r3)
/* save FP state */
- bl .kvmppc_save_fp
+ bl kvmppc_save_fp
/*
- * Take a nap until a decrementer or external interrupt occurs,
- * with PECE1 (wake on decr) and PECE0 (wake on external) set in LPCR
+ * Take a nap until a decrementer or external or doobell interrupt
+ * occurs, with PECE1, PECE0 and PECEDP set in LPCR
*/
li r0,1
stb r0,HSTATE_HWTHREAD_REQ(r13)
mfspr r5,SPRN_LPCR
ori r5,r5,LPCR_PECE0 | LPCR_PECE1
+BEGIN_FTR_SECTION
+ oris r5,r5,LPCR_PECEDP@h
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
mtspr SPRN_LPCR,r5
isync
li r0, 0
@@ -1698,6 +1976,11 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
nap
b .
+33: mr r4, r3
+ li r3, 0
+ li r12, 0
+ b 34f
+
kvm_end_cede:
/* get vcpu pointer */
ld r4, HSTATE_KVM_VCPU(r13)
@@ -1727,12 +2010,15 @@ kvm_end_cede:
ld r29, VCPU_GPR(R29)(r4)
ld r30, VCPU_GPR(R30)(r4)
ld r31, VCPU_GPR(R31)(r4)
+
+ /* Check the wake reason in SRR1 to see why we got here */
+ bl kvmppc_check_wake_reason
/* clear our bit in vcore->napping_threads */
-33: ld r5,HSTATE_KVM_VCORE(r13)
- lwz r3,VCPU_PTID(r4)
+34: ld r5,HSTATE_KVM_VCORE(r13)
+ lbz r7,HSTATE_PTID(r13)
li r0,1
- sld r0,r0,r3
+ sld r0,r0,r7
addi r6,r5,VCORE_NAPPING_THREADS
32: lwarx r7,0,r6
andc r7,r7,r0
@@ -1741,23 +2027,18 @@ kvm_end_cede:
li r0,0
stb r0,HSTATE_NAPPING(r13)
- /* Check the wake reason in SRR1 to see why we got here */
- mfspr r3, SPRN_SRR1
- rlwinm r3, r3, 44-31, 0x7 /* extract wake reason field */
- cmpwi r3, 4 /* was it an external interrupt? */
- li r12, BOOK3S_INTERRUPT_EXTERNAL
+ /* See if the wake reason means we need to exit */
+ stw r12, VCPU_TRAP(r4)
mr r9, r4
- ld r10, VCPU_PC(r9)
- ld r11, VCPU_MSR(r9)
- beq do_ext_interrupt /* if so */
+ cmpdi r3, 0
+ bgt guest_exit_cont
/* see if any other thread is already exiting */
lwz r0,VCORE_ENTRY_EXIT(r5)
cmpwi r0,0x100
- blt kvmppc_cede_reentry /* if not go back to guest */
+ bge guest_exit_cont
- /* some threads are exiting, so go to the guest exit path */
- b hcall_real_fallback
+ b kvmppc_cede_reentry /* if not go back to guest */
/* cede when already previously prodded case */
kvm_cede_prodded:
@@ -1783,11 +2064,48 @@ machine_check_realmode:
beq mc_cont
/* If not, deliver a machine check. SRR0/1 are already set */
li r10, BOOK3S_INTERRUPT_MACHINE_CHECK
- li r11, (MSR_ME << 1) | 1 /* synthesize MSR_SF | MSR_ME */
- rotldi r11, r11, 63
+ ld r11, VCPU_INTR_MSR(r9)
b fast_interrupt_c_return
/*
+ * Check the reason we woke from nap, and take appropriate action.
+ * Returns:
+ * 0 if nothing needs to be done
+ * 1 if something happened that needs to be handled by the host
+ * -1 if there was a guest wakeup (IPI)
+ *
+ * Also sets r12 to the interrupt vector for any interrupt that needs
+ * to be handled now by the host (0x500 for external interrupt), or zero.
+ */
+kvmppc_check_wake_reason:
+ mfspr r6, SPRN_SRR1
+BEGIN_FTR_SECTION
+ rlwinm r6, r6, 45-31, 0xf /* extract wake reason field (P8) */
+FTR_SECTION_ELSE
+ rlwinm r6, r6, 45-31, 0xe /* P7 wake reason field is 3 bits */
+ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_207S)
+ cmpwi r6, 8 /* was it an external interrupt? */
+ li r12, BOOK3S_INTERRUPT_EXTERNAL
+ beq kvmppc_read_intr /* if so, see what it was */
+ li r3, 0
+ li r12, 0
+ cmpwi r6, 6 /* was it the decrementer? */
+ beq 0f
+BEGIN_FTR_SECTION
+ cmpwi r6, 5 /* privileged doorbell? */
+ beq 0f
+ cmpwi r6, 3 /* hypervisor doorbell? */
+ beq 3f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+ li r3, 1 /* anything else, return 1 */
+0: blr
+
+ /* hypervisor doorbell */
+3: li r12, BOOK3S_INTERRUPT_H_DOORBELL
+ li r3, 1
+ blr
+
+/*
* Determine what sort of external interrupt is pending (if any).
* Returns:
* 0 if no interrupt is pending
@@ -1818,7 +2136,6 @@ kvmppc_read_intr:
* interrupts directly to the guest
*/
cmpwi r3, XICS_IPI /* if there is, is it an IPI? */
- li r3, 1
bne 42f
/* It's an IPI, clear the MFRR and EOI it */
@@ -1844,19 +2161,25 @@ kvmppc_read_intr:
* before exit, it will be picked up by the host ICP driver
*/
stw r0, HSTATE_SAVED_XIRR(r13)
+ li r3, 1
b 1b
43: /* We raced with the host, we need to resend that IPI, bummer */
li r0, IPI_PRIORITY
stbcix r0, r6, r8 /* set the IPI */
sync
+ li r3, 1
b 1b
/*
* Save away FP, VMX and VSX registers.
* r3 = vcpu pointer
+ * N.B. r30 and r31 are volatile across this function,
+ * thus it is not callable from C.
*/
-_GLOBAL(kvmppc_save_fp)
+kvmppc_save_fp:
+ mflr r30
+ mr r31,r3
mfmsr r5
ori r8,r5,MSR_FP
#ifdef CONFIG_ALTIVEC
@@ -1871,42 +2194,17 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
#endif
mtmsrd r8
isync
-#ifdef CONFIG_VSX
-BEGIN_FTR_SECTION
- reg = 0
- .rept 32
- li r6,reg*16+VCPU_VSRS
- STXVD2X(reg,R6,R3)
- reg = reg + 1
- .endr
-FTR_SECTION_ELSE
-#endif
- reg = 0
- .rept 32
- stfd reg,reg*8+VCPU_FPRS(r3)
- reg = reg + 1
- .endr
-#ifdef CONFIG_VSX
-ALT_FTR_SECTION_END_IFSET(CPU_FTR_VSX)
-#endif
- mffs fr0
- stfd fr0,VCPU_FPSCR(r3)
-
+ addi r3,r3,VCPU_FPRS
+ bl .store_fp_state
#ifdef CONFIG_ALTIVEC
BEGIN_FTR_SECTION
- reg = 0
- .rept 32
- li r6,reg*16+VCPU_VRS
- stvx reg,r6,r3
- reg = reg + 1
- .endr
- mfvscr vr0
- li r6,VCPU_VSCR
- stvx vr0,r6,r3
+ addi r3,r31,VCPU_VRS
+ bl .store_vr_state
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
mfspr r6,SPRN_VRSAVE
stw r6,VCPU_VRSAVE(r3)
+ mtlr r30
mtmsrd r5
isync
blr
@@ -1914,9 +2212,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
/*
* Load up FP, VMX and VSX registers
* r4 = vcpu pointer
+ * N.B. r30 and r31 are volatile across this function,
+ * thus it is not callable from C.
*/
- .globl kvmppc_load_fp
kvmppc_load_fp:
+ mflr r30
+ mr r31,r4
mfmsr r9
ori r8,r9,MSR_FP
#ifdef CONFIG_ALTIVEC
@@ -1931,42 +2232,18 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
#endif
mtmsrd r8
isync
- lfd fr0,VCPU_FPSCR(r4)
- MTFSF_L(fr0)
-#ifdef CONFIG_VSX
-BEGIN_FTR_SECTION
- reg = 0
- .rept 32
- li r7,reg*16+VCPU_VSRS
- LXVD2X(reg,R7,R4)
- reg = reg + 1
- .endr
-FTR_SECTION_ELSE
-#endif
- reg = 0
- .rept 32
- lfd reg,reg*8+VCPU_FPRS(r4)
- reg = reg + 1
- .endr
-#ifdef CONFIG_VSX
-ALT_FTR_SECTION_END_IFSET(CPU_FTR_VSX)
-#endif
-
+ addi r3,r4,VCPU_FPRS
+ bl .load_fp_state
#ifdef CONFIG_ALTIVEC
BEGIN_FTR_SECTION
- li r7,VCPU_VSCR
- lvx vr0,r7,r4
- mtvscr vr0
- reg = 0
- .rept 32
- li r7,reg*16+VCPU_VRS
- lvx reg,r7,r4
- reg = reg + 1
- .endr
+ addi r3,r31,VCPU_VRS
+ bl .load_vr_state
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
lwz r7,VCPU_VRSAVE(r4)
mtspr SPRN_VRSAVE,r7
+ mtlr r30
+ mr r4,r31
blr
/*
diff --git a/arch/powerpc/kvm/book3s_paired_singles.c b/arch/powerpc/kvm/book3s_paired_singles.c
index a59a25a..c1abd95 100644
--- a/arch/powerpc/kvm/book3s_paired_singles.c
+++ b/arch/powerpc/kvm/book3s_paired_singles.c
@@ -160,7 +160,7 @@
static inline void kvmppc_sync_qpr(struct kvm_vcpu *vcpu, int rt)
{
- kvm_cvt_df(&vcpu->arch.fpr[rt], &vcpu->arch.qpr[rt]);
+ kvm_cvt_df(&VCPU_FPR(vcpu, rt), &vcpu->arch.qpr[rt]);
}
static void kvmppc_inject_pf(struct kvm_vcpu *vcpu, ulong eaddr, bool is_store)
@@ -207,11 +207,11 @@ static int kvmppc_emulate_fpr_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* put in registers */
switch (ls_type) {
case FPU_LS_SINGLE:
- kvm_cvt_fd((u32*)tmp, &vcpu->arch.fpr[rs]);
+ kvm_cvt_fd((u32*)tmp, &VCPU_FPR(vcpu, rs));
vcpu->arch.qpr[rs] = *((u32*)tmp);
break;
case FPU_LS_DOUBLE:
- vcpu->arch.fpr[rs] = *((u64*)tmp);
+ VCPU_FPR(vcpu, rs) = *((u64*)tmp);
break;
}
@@ -233,18 +233,18 @@ static int kvmppc_emulate_fpr_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
switch (ls_type) {
case FPU_LS_SINGLE:
- kvm_cvt_df(&vcpu->arch.fpr[rs], (u32*)tmp);
+ kvm_cvt_df(&VCPU_FPR(vcpu, rs), (u32*)tmp);
val = *((u32*)tmp);
len = sizeof(u32);
break;
case FPU_LS_SINGLE_LOW:
- *((u32*)tmp) = vcpu->arch.fpr[rs];
- val = vcpu->arch.fpr[rs] & 0xffffffff;
+ *((u32*)tmp) = VCPU_FPR(vcpu, rs);
+ val = VCPU_FPR(vcpu, rs) & 0xffffffff;
len = sizeof(u32);
break;
case FPU_LS_DOUBLE:
- *((u64*)tmp) = vcpu->arch.fpr[rs];
- val = vcpu->arch.fpr[rs];
+ *((u64*)tmp) = VCPU_FPR(vcpu, rs);
+ val = VCPU_FPR(vcpu, rs);
len = sizeof(u64);
break;
default:
@@ -301,7 +301,7 @@ static int kvmppc_emulate_psq_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
emulated = EMULATE_DONE;
/* put in registers */
- kvm_cvt_fd(&tmp[0], &vcpu->arch.fpr[rs]);
+ kvm_cvt_fd(&tmp[0], &VCPU_FPR(vcpu, rs));
vcpu->arch.qpr[rs] = tmp[1];
dprintk(KERN_INFO "KVM: PSQ_LD [0x%x, 0x%x] at 0x%lx (%d)\n", tmp[0],
@@ -319,7 +319,7 @@ static int kvmppc_emulate_psq_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
u32 tmp[2];
int len = w ? sizeof(u32) : sizeof(u64);
- kvm_cvt_df(&vcpu->arch.fpr[rs], &tmp[0]);
+ kvm_cvt_df(&VCPU_FPR(vcpu, rs), &tmp[0]);
tmp[1] = vcpu->arch.qpr[rs];
r = kvmppc_st(vcpu, &addr, len, tmp, true);
@@ -512,7 +512,6 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
u32 *src2, u32 *src3))
{
u32 *qpr = vcpu->arch.qpr;
- u64 *fpr = vcpu->arch.fpr;
u32 ps0_out;
u32 ps0_in1, ps0_in2, ps0_in3;
u32 ps1_in1, ps1_in2, ps1_in3;
@@ -521,20 +520,20 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
WARN_ON(rc);
/* PS0 */
- kvm_cvt_df(&fpr[reg_in1], &ps0_in1);
- kvm_cvt_df(&fpr[reg_in2], &ps0_in2);
- kvm_cvt_df(&fpr[reg_in3], &ps0_in3);
+ kvm_cvt_df(&VCPU_FPR(vcpu, reg_in1), &ps0_in1);
+ kvm_cvt_df(&VCPU_FPR(vcpu, reg_in2), &ps0_in2);
+ kvm_cvt_df(&VCPU_FPR(vcpu, reg_in3), &ps0_in3);
if (scalar & SCALAR_LOW)
ps0_in2 = qpr[reg_in2];
- func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2, &ps0_in3);
+ func(&vcpu->arch.fp.fpscr, &ps0_out, &ps0_in1, &ps0_in2, &ps0_in3);
dprintk(KERN_INFO "PS3 ps0 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n",
ps0_in1, ps0_in2, ps0_in3, ps0_out);
if (!(scalar & SCALAR_NO_PS0))
- kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
+ kvm_cvt_fd(&ps0_out, &VCPU_FPR(vcpu, reg_out));
/* PS1 */
ps1_in1 = qpr[reg_in1];
@@ -545,7 +544,7 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
ps1_in2 = ps0_in2;
if (!(scalar & SCALAR_NO_PS1))
- func(&vcpu->arch.fpscr, &qpr[reg_out], &ps1_in1, &ps1_in2, &ps1_in3);
+ func(&vcpu->arch.fp.fpscr, &qpr[reg_out], &ps1_in1, &ps1_in2, &ps1_in3);
dprintk(KERN_INFO "PS3 ps1 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n",
ps1_in1, ps1_in2, ps1_in3, qpr[reg_out]);
@@ -561,7 +560,6 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
u32 *src2))
{
u32 *qpr = vcpu->arch.qpr;
- u64 *fpr = vcpu->arch.fpr;
u32 ps0_out;
u32 ps0_in1, ps0_in2;
u32 ps1_out;
@@ -571,20 +569,20 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
WARN_ON(rc);
/* PS0 */
- kvm_cvt_df(&fpr[reg_in1], &ps0_in1);
+ kvm_cvt_df(&VCPU_FPR(vcpu, reg_in1), &ps0_in1);
if (scalar & SCALAR_LOW)
ps0_in2 = qpr[reg_in2];
else
- kvm_cvt_df(&fpr[reg_in2], &ps0_in2);
+ kvm_cvt_df(&VCPU_FPR(vcpu, reg_in2), &ps0_in2);
- func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2);
+ func(&vcpu->arch.fp.fpscr, &ps0_out, &ps0_in1, &ps0_in2);
if (!(scalar & SCALAR_NO_PS0)) {
dprintk(KERN_INFO "PS2 ps0 -> f(0x%x, 0x%x) = 0x%x\n",
ps0_in1, ps0_in2, ps0_out);
- kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
+ kvm_cvt_fd(&ps0_out, &VCPU_FPR(vcpu, reg_out));
}
/* PS1 */
@@ -594,7 +592,7 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
if (scalar & SCALAR_HIGH)
ps1_in2 = ps0_in2;
- func(&vcpu->arch.fpscr, &ps1_out, &ps1_in1, &ps1_in2);
+ func(&vcpu->arch.fp.fpscr, &ps1_out, &ps1_in1, &ps1_in2);
if (!(scalar & SCALAR_NO_PS1)) {
qpr[reg_out] = ps1_out;
@@ -612,7 +610,6 @@ static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc,
u32 *dst, u32 *src1))
{
u32 *qpr = vcpu->arch.qpr;
- u64 *fpr = vcpu->arch.fpr;
u32 ps0_out, ps0_in;
u32 ps1_in;
@@ -620,17 +617,17 @@ static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc,
WARN_ON(rc);
/* PS0 */
- kvm_cvt_df(&fpr[reg_in], &ps0_in);
- func(&vcpu->arch.fpscr, &ps0_out, &ps0_in);
+ kvm_cvt_df(&VCPU_FPR(vcpu, reg_in), &ps0_in);
+ func(&vcpu->arch.fp.fpscr, &ps0_out, &ps0_in);
dprintk(KERN_INFO "PS1 ps0 -> f(0x%x) = 0x%x\n",
ps0_in, ps0_out);
- kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
+ kvm_cvt_fd(&ps0_out, &VCPU_FPR(vcpu, reg_out));
/* PS1 */
ps1_in = qpr[reg_in];
- func(&vcpu->arch.fpscr, &qpr[reg_out], &ps1_in);
+ func(&vcpu->arch.fp.fpscr, &qpr[reg_out], &ps1_in);
dprintk(KERN_INFO "PS1 ps1 -> f(0x%x) = 0x%x\n",
ps1_in, qpr[reg_out]);
@@ -649,10 +646,10 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
int ax_rc = inst_get_field(inst, 21, 25);
short full_d = inst_get_field(inst, 16, 31);
- u64 *fpr_d = &vcpu->arch.fpr[ax_rd];
- u64 *fpr_a = &vcpu->arch.fpr[ax_ra];
- u64 *fpr_b = &vcpu->arch.fpr[ax_rb];
- u64 *fpr_c = &vcpu->arch.fpr[ax_rc];
+ u64 *fpr_d = &VCPU_FPR(vcpu, ax_rd);
+ u64 *fpr_a = &VCPU_FPR(vcpu, ax_ra);
+ u64 *fpr_b = &VCPU_FPR(vcpu, ax_rb);
+ u64 *fpr_c = &VCPU_FPR(vcpu, ax_rc);
bool rcomp = (inst & 1) ? true : false;
u32 cr = kvmppc_get_cr(vcpu);
@@ -674,11 +671,11 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
/* Do we need to clear FE0 / FE1 here? Don't think so. */
#ifdef DEBUG
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
+ for (i = 0; i < ARRAY_SIZE(vcpu->arch.fp.fpr); i++) {
u32 f;
- kvm_cvt_df(&vcpu->arch.fpr[i], &f);
+ kvm_cvt_df(&VCPU_FPR(vcpu, i), &f);
dprintk(KERN_INFO "FPR[%d] = 0x%x / 0x%llx QPR[%d] = 0x%x\n",
- i, f, vcpu->arch.fpr[i], i, vcpu->arch.qpr[i]);
+ i, f, VCPU_FPR(vcpu, i), i, vcpu->arch.qpr[i]);
}
#endif
@@ -764,8 +761,8 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
}
case OP_4X_PS_NEG:
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
- vcpu->arch.fpr[ax_rd] ^= 0x8000000000000000ULL;
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
+ VCPU_FPR(vcpu, ax_rd) ^= 0x8000000000000000ULL;
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
vcpu->arch.qpr[ax_rd] ^= 0x80000000;
break;
@@ -775,7 +772,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_4X_PS_MR:
WARN_ON(rcomp);
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
break;
case OP_4X_PS_CMPO1:
@@ -784,44 +781,44 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_4X_PS_NABS:
WARN_ON(rcomp);
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
- vcpu->arch.fpr[ax_rd] |= 0x8000000000000000ULL;
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
+ VCPU_FPR(vcpu, ax_rd) |= 0x8000000000000000ULL;
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
vcpu->arch.qpr[ax_rd] |= 0x80000000;
break;
case OP_4X_PS_ABS:
WARN_ON(rcomp);
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
- vcpu->arch.fpr[ax_rd] &= ~0x8000000000000000ULL;
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
+ VCPU_FPR(vcpu, ax_rd) &= ~0x8000000000000000ULL;
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
vcpu->arch.qpr[ax_rd] &= ~0x80000000;
break;
case OP_4X_PS_MERGE00:
WARN_ON(rcomp);
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra];
- /* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
- kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_ra);
+ /* vcpu->arch.qpr[ax_rd] = VCPU_FPR(vcpu, ax_rb); */
+ kvm_cvt_df(&VCPU_FPR(vcpu, ax_rb),
&vcpu->arch.qpr[ax_rd]);
break;
case OP_4X_PS_MERGE01:
WARN_ON(rcomp);
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra];
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_ra);
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
break;
case OP_4X_PS_MERGE10:
WARN_ON(rcomp);
- /* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
+ /* VCPU_FPR(vcpu, ax_rd) = vcpu->arch.qpr[ax_ra]; */
kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
- &vcpu->arch.fpr[ax_rd]);
- /* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
- kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
+ &VCPU_FPR(vcpu, ax_rd));
+ /* vcpu->arch.qpr[ax_rd] = VCPU_FPR(vcpu, ax_rb); */
+ kvm_cvt_df(&VCPU_FPR(vcpu, ax_rb),
&vcpu->arch.qpr[ax_rd]);
break;
case OP_4X_PS_MERGE11:
WARN_ON(rcomp);
- /* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
+ /* VCPU_FPR(vcpu, ax_rd) = vcpu->arch.qpr[ax_ra]; */
kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
- &vcpu->arch.fpr[ax_rd]);
+ &VCPU_FPR(vcpu, ax_rd));
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
break;
}
@@ -856,7 +853,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
case OP_4A_PS_SUM1:
emulated = kvmppc_ps_two_in(vcpu, rcomp, ax_rd,
ax_rb, ax_ra, SCALAR_NO_PS0 | SCALAR_HIGH, fps_fadds);
- vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rc];
+ VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rc);
break;
case OP_4A_PS_SUM0:
emulated = kvmppc_ps_two_in(vcpu, rcomp, ax_rd,
@@ -1106,45 +1103,45 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
case 59:
switch (inst_get_field(inst, 21, 30)) {
case OP_59_FADDS:
- fpd_fadds(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fadds(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FSUBS:
- fpd_fsubs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fsubs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FDIVS:
- fpd_fdivs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fdivs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FRES:
- fpd_fres(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_fres(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FRSQRTES:
- fpd_frsqrtes(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_frsqrtes(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
}
switch (inst_get_field(inst, 26, 30)) {
case OP_59_FMULS:
- fpd_fmuls(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c);
+ fpd_fmuls(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FMSUBS:
- fpd_fmsubs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fmsubs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FMADDS:
- fpd_fmadds(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fmadds(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FNMSUBS:
- fpd_fnmsubs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fnmsubs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FNMADDS:
- fpd_fnmadds(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fnmadds(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
}
@@ -1159,12 +1156,12 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_63_MFFS:
/* XXX missing CR */
- *fpr_d = vcpu->arch.fpscr;
+ *fpr_d = vcpu->arch.fp.fpscr;
break;
case OP_63_MTFSF:
/* XXX missing fm bits */
/* XXX missing CR */
- vcpu->arch.fpscr = *fpr_b;
+ vcpu->arch.fp.fpscr = *fpr_b;
break;
case OP_63_FCMPU:
{
@@ -1172,7 +1169,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
u32 cr0_mask = 0xf0000000;
u32 cr_shift = inst_get_field(inst, 6, 8) * 4;
- fpd_fcmpu(&vcpu->arch.fpscr, &tmp_cr, fpr_a, fpr_b);
+ fpd_fcmpu(&vcpu->arch.fp.fpscr, &tmp_cr, fpr_a, fpr_b);
cr &= ~(cr0_mask >> cr_shift);
cr |= (cr & cr0_mask) >> cr_shift;
break;
@@ -1183,40 +1180,40 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
u32 cr0_mask = 0xf0000000;
u32 cr_shift = inst_get_field(inst, 6, 8) * 4;
- fpd_fcmpo(&vcpu->arch.fpscr, &tmp_cr, fpr_a, fpr_b);
+ fpd_fcmpo(&vcpu->arch.fp.fpscr, &tmp_cr, fpr_a, fpr_b);
cr &= ~(cr0_mask >> cr_shift);
cr |= (cr & cr0_mask) >> cr_shift;
break;
}
case OP_63_FNEG:
- fpd_fneg(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_fneg(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FMR:
*fpr_d = *fpr_b;
break;
case OP_63_FABS:
- fpd_fabs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_fabs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FCPSGN:
- fpd_fcpsgn(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fcpsgn(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FDIV:
- fpd_fdiv(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fdiv(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FADD:
- fpd_fadd(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fadd(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FSUB:
- fpd_fsub(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
+ fpd_fsub(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FCTIW:
- fpd_fctiw(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_fctiw(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FCTIWZ:
- fpd_fctiwz(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_fctiwz(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FRSP:
- fpd_frsp(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_frsp(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_63_FRSQRTE:
@@ -1224,39 +1221,39 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
double one = 1.0f;
/* fD = sqrt(fB) */
- fpd_fsqrt(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
+ fpd_fsqrt(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
/* fD = 1.0f / fD */
- fpd_fdiv(&vcpu->arch.fpscr, &cr, fpr_d, (u64*)&one, fpr_d);
+ fpd_fdiv(&vcpu->arch.fp.fpscr, &cr, fpr_d, (u64*)&one, fpr_d);
break;
}
}
switch (inst_get_field(inst, 26, 30)) {
case OP_63_FMUL:
- fpd_fmul(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c);
+ fpd_fmul(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c);
break;
case OP_63_FSEL:
- fpd_fsel(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fsel(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FMSUB:
- fpd_fmsub(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fmsub(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FMADD:
- fpd_fmadd(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fmadd(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FNMSUB:
- fpd_fnmsub(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fnmsub(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FNMADD:
- fpd_fnmadd(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
+ fpd_fnmadd(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
}
break;
}
#ifdef DEBUG
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
+ for (i = 0; i < ARRAY_SIZE(vcpu->arch.fp.fpr); i++) {
u32 f;
- kvm_cvt_df(&vcpu->arch.fpr[i], &f);
+ kvm_cvt_df(&VCPU_FPR(vcpu, i), &f);
dprintk(KERN_INFO "FPR[%d] = 0x%x\n", i, f);
}
#endif
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 5b9e906..c5c052a 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -41,6 +41,7 @@
#include <linux/vmalloc.h>
#include <linux/highmem.h>
#include <linux/module.h>
+#include <linux/miscdevice.h>
#include "book3s.h"
@@ -566,12 +567,6 @@ static inline int get_fpr_index(int i)
void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
{
struct thread_struct *t = &current->thread;
- u64 *vcpu_fpr = vcpu->arch.fpr;
-#ifdef CONFIG_VSX
- u64 *vcpu_vsx = vcpu->arch.vsr;
-#endif
- u64 *thread_fpr = &t->fp_state.fpr[0][0];
- int i;
/*
* VSX instructions can access FP and vector registers, so if
@@ -594,26 +589,16 @@ void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
* both the traditional FP registers and the added VSX
* registers into thread.fp_state.fpr[].
*/
- if (current->thread.regs->msr & MSR_FP)
+ if (t->regs->msr & MSR_FP)
giveup_fpu(current);
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++)
- vcpu_fpr[i] = thread_fpr[get_fpr_index(i)];
-
- vcpu->arch.fpscr = t->fp_state.fpscr;
-
-#ifdef CONFIG_VSX
- if (cpu_has_feature(CPU_FTR_VSX))
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.vsr) / 2; i++)
- vcpu_vsx[i] = thread_fpr[get_fpr_index(i) + 1];
-#endif
+ t->fp_save_area = NULL;
}
#ifdef CONFIG_ALTIVEC
if (msr & MSR_VEC) {
if (current->thread.regs->msr & MSR_VEC)
giveup_altivec(current);
- memcpy(vcpu->arch.vr, t->vr_state.vr, sizeof(vcpu->arch.vr));
- vcpu->arch.vscr = t->vr_state.vscr;
+ t->vr_save_area = NULL;
}
#endif
@@ -661,12 +646,6 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
ulong msr)
{
struct thread_struct *t = &current->thread;
- u64 *vcpu_fpr = vcpu->arch.fpr;
-#ifdef CONFIG_VSX
- u64 *vcpu_vsx = vcpu->arch.vsr;
-#endif
- u64 *thread_fpr = &t->fp_state.fpr[0][0];
- int i;
/* When we have paired singles, we emulate in software */
if (vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE)
@@ -704,27 +683,20 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
#endif
if (msr & MSR_FP) {
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++)
- thread_fpr[get_fpr_index(i)] = vcpu_fpr[i];
-#ifdef CONFIG_VSX
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.vsr) / 2; i++)
- thread_fpr[get_fpr_index(i) + 1] = vcpu_vsx[i];
-#endif
- t->fp_state.fpscr = vcpu->arch.fpscr;
- t->fpexc_mode = 0;
- kvmppc_load_up_fpu();
+ enable_kernel_fp();
+ load_fp_state(&vcpu->arch.fp);
+ t->fp_save_area = &vcpu->arch.fp;
}
if (msr & MSR_VEC) {
#ifdef CONFIG_ALTIVEC
- memcpy(t->vr_state.vr, vcpu->arch.vr, sizeof(vcpu->arch.vr));
- t->vr_state.vscr = vcpu->arch.vscr;
- t->vrsave = -1;
- kvmppc_load_up_altivec();
+ enable_kernel_altivec();
+ load_vr_state(&vcpu->arch.vr);
+ t->vr_save_area = &vcpu->arch.vr;
#endif
}
- current->thread.regs->msr |= msr;
+ t->regs->msr |= msr;
vcpu->arch.guest_owned_ext |= msr;
kvmppc_recalc_shadow_msr(vcpu);
@@ -743,11 +715,15 @@ static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu)
if (!lost_ext)
return;
- if (lost_ext & MSR_FP)
- kvmppc_load_up_fpu();
+ if (lost_ext & MSR_FP) {
+ enable_kernel_fp();
+ load_fp_state(&vcpu->arch.fp);
+ }
#ifdef CONFIG_ALTIVEC
- if (lost_ext & MSR_VEC)
- kvmppc_load_up_altivec();
+ if (lost_ext & MSR_VEC) {
+ enable_kernel_altivec();
+ load_vr_state(&vcpu->arch.vr);
+ }
#endif
current->thread.regs->msr |= lost_ext;
}
@@ -873,6 +849,7 @@ int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* We're good on these - the host merely wanted to get our attention */
case BOOK3S_INTERRUPT_DECREMENTER:
case BOOK3S_INTERRUPT_HV_DECREMENTER:
+ case BOOK3S_INTERRUPT_DOORBELL:
vcpu->stat.dec_exits++;
r = RESUME_GUEST;
break;
@@ -1045,14 +1022,14 @@ program_interrupt:
* and if we really did time things so badly, then we just exit
* again due to a host external interrupt.
*/
- local_irq_disable();
s = kvmppc_prepare_to_enter(vcpu);
- if (s <= 0) {
- local_irq_enable();
+ if (s <= 0)
r = s;
- } else {
+ else {
+ /* interrupts now hard-disabled */
kvmppc_fix_ee_before_entry();
}
+
kvmppc_handle_lost_ext(vcpu);
}
@@ -1133,19 +1110,6 @@ static int kvmppc_get_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_HIOR:
*val = get_reg_val(id, to_book3s(vcpu)->hior);
break;
-#ifdef CONFIG_VSX
- case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: {
- long int i = id - KVM_REG_PPC_VSR0;
-
- if (!cpu_has_feature(CPU_FTR_VSX)) {
- r = -ENXIO;
- break;
- }
- val->vsxval[0] = vcpu->arch.fpr[i];
- val->vsxval[1] = vcpu->arch.vsr[i];
- break;
- }
-#endif /* CONFIG_VSX */
default:
r = -EINVAL;
break;
@@ -1164,19 +1128,6 @@ static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
to_book3s(vcpu)->hior = set_reg_val(id, *val);
to_book3s(vcpu)->hior_explicit = true;
break;
-#ifdef CONFIG_VSX
- case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: {
- long int i = id - KVM_REG_PPC_VSR0;
-
- if (!cpu_has_feature(CPU_FTR_VSX)) {
- r = -ENXIO;
- break;
- }
- vcpu->arch.fpr[i] = val->vsxval[0];
- vcpu->arch.vsr[i] = val->vsxval[1];
- break;
- }
-#endif /* CONFIG_VSX */
default:
r = -EINVAL;
break;
@@ -1274,17 +1225,9 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
{
int ret;
- struct thread_fp_state fp;
- int fpexc_mode;
#ifdef CONFIG_ALTIVEC
- struct thread_vr_state vr;
unsigned long uninitialized_var(vrsave);
- int used_vr;
#endif
-#ifdef CONFIG_VSX
- int used_vsr;
-#endif
- ulong ext_msr;
/* Check if we can run the vcpu at all */
if (!vcpu->arch.sane) {
@@ -1299,40 +1242,27 @@ static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
* really did time things so badly, then we just exit again due to
* a host external interrupt.
*/
- local_irq_disable();
ret = kvmppc_prepare_to_enter(vcpu);
- if (ret <= 0) {
- local_irq_enable();
+ if (ret <= 0)
goto out;
- }
+ /* interrupts now hard-disabled */
- /* Save FPU state in stack */
+ /* Save FPU state in thread_struct */
if (current->thread.regs->msr & MSR_FP)
giveup_fpu(current);
- fp = current->thread.fp_state;
- fpexc_mode = current->thread.fpexc_mode;
#ifdef CONFIG_ALTIVEC
- /* Save Altivec state in stack */
- used_vr = current->thread.used_vr;
- if (used_vr) {
- if (current->thread.regs->msr & MSR_VEC)
- giveup_altivec(current);
- vr = current->thread.vr_state;
- vrsave = current->thread.vrsave;
- }
+ /* Save Altivec state in thread_struct */
+ if (current->thread.regs->msr & MSR_VEC)
+ giveup_altivec(current);
#endif
#ifdef CONFIG_VSX
- /* Save VSX state in stack */
- used_vsr = current->thread.used_vsr;
- if (used_vsr && (current->thread.regs->msr & MSR_VSX))
+ /* Save VSX state in thread_struct */
+ if (current->thread.regs->msr & MSR_VSX)
__giveup_vsx(current);
#endif
- /* Remember the MSR with disabled extensions */
- ext_msr = current->thread.regs->msr;
-
/* Preload FPU if it's enabled */
if (vcpu->arch.shared->msr & MSR_FP)
kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
@@ -1347,25 +1277,6 @@ static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
/* Make sure we save the guest FPU/Altivec/VSX state */
kvmppc_giveup_ext(vcpu, MSR_FP | MSR_VEC | MSR_VSX);
- current->thread.regs->msr = ext_msr;
-
- /* Restore FPU/VSX state from stack */
- current->thread.fp_state = fp;
- current->thread.fpexc_mode = fpexc_mode;
-
-#ifdef CONFIG_ALTIVEC
- /* Restore Altivec state from stack */
- if (used_vr && current->thread.used_vr) {
- current->thread.vr_state = vr;
- current->thread.vrsave = vrsave;
- }
- current->thread.used_vr = used_vr;
-#endif
-
-#ifdef CONFIG_VSX
- current->thread.used_vsr = used_vsr;
-#endif
-
out:
vcpu->mode = OUTSIDE_GUEST_MODE;
return ret;
@@ -1606,4 +1517,6 @@ module_init(kvmppc_book3s_init_pr);
module_exit(kvmppc_book3s_exit_pr);
MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
#endif
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index c3c5231..9eec675 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -162,51 +162,4 @@ _GLOBAL(kvmppc_entry_trampoline)
mtsrr1 r6
RFI
-#if defined(CONFIG_PPC_BOOK3S_32)
-#define STACK_LR INT_FRAME_SIZE+4
-
-/* load_up_xxx have to run with MSR_DR=0 on Book3S_32 */
-#define MSR_EXT_START \
- PPC_STL r20, _NIP(r1); \
- mfmsr r20; \
- LOAD_REG_IMMEDIATE(r3, MSR_DR|MSR_EE); \
- andc r3,r20,r3; /* Disable DR,EE */ \
- mtmsr r3; \
- sync
-
-#define MSR_EXT_END \
- mtmsr r20; /* Enable DR,EE */ \
- sync; \
- PPC_LL r20, _NIP(r1)
-
-#elif defined(CONFIG_PPC_BOOK3S_64)
-#define STACK_LR _LINK
-#define MSR_EXT_START
-#define MSR_EXT_END
-#endif
-
-/*
- * Activate current's external feature (FPU/Altivec/VSX)
- */
-#define define_load_up(what) \
- \
-_GLOBAL(kvmppc_load_up_ ## what); \
- PPC_STLU r1, -INT_FRAME_SIZE(r1); \
- mflr r3; \
- PPC_STL r3, STACK_LR(r1); \
- MSR_EXT_START; \
- \
- bl FUNC(load_up_ ## what); \
- \
- MSR_EXT_END; \
- PPC_LL r3, STACK_LR(r1); \
- mtlr r3; \
- addi r1, r1, INT_FRAME_SIZE; \
- blr
-
-define_load_up(fpu)
-#ifdef CONFIG_ALTIVEC
-define_load_up(altivec)
-#endif
-
#include "book3s_segment.S"
diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S
index bc50c97..1e0cc2a 100644
--- a/arch/powerpc/kvm/book3s_segment.S
+++ b/arch/powerpc/kvm/book3s_segment.S
@@ -361,6 +361,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
beqa BOOK3S_INTERRUPT_DECREMENTER
cmpwi r12, BOOK3S_INTERRUPT_PERFMON
beqa BOOK3S_INTERRUPT_PERFMON
+ cmpwi r12, BOOK3S_INTERRUPT_DOORBELL
+ beqa BOOK3S_INTERRUPT_DOORBELL
RFI
kvmppc_handler_trampoline_exit_end:
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index 02a17dc..d1acd32 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -1246,8 +1246,10 @@ static int kvmppc_xics_create(struct kvm_device *dev, u32 type)
kvm->arch.xics = xics;
mutex_unlock(&kvm->lock);
- if (ret)
+ if (ret) {
+ kfree(xics);
return ret;
+ }
xics_debugfs_init(xics);
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 0591e05..ab62109 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -643,7 +643,7 @@ int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
local_irq_enable();
kvm_vcpu_block(vcpu);
clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
- local_irq_disable();
+ hard_irq_disable();
kvmppc_set_exit_type(vcpu, EMULATED_MTMSRWE_EXITS);
r = 1;
@@ -682,34 +682,22 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
{
int ret, s;
struct debug_reg debug;
-#ifdef CONFIG_PPC_FPU
- struct thread_fp_state fp;
- int fpexc_mode;
-#endif
if (!vcpu->arch.sane) {
kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
return -EINVAL;
}
- local_irq_disable();
s = kvmppc_prepare_to_enter(vcpu);
if (s <= 0) {
- local_irq_enable();
ret = s;
goto out;
}
+ /* interrupts now hard-disabled */
#ifdef CONFIG_PPC_FPU
/* Save userspace FPU state in stack */
enable_kernel_fp();
- fp = current->thread.fp_state;
- fpexc_mode = current->thread.fpexc_mode;
-
- /* Restore guest FPU state to thread */
- memcpy(current->thread.fp_state.fpr, vcpu->arch.fpr,
- sizeof(vcpu->arch.fpr));
- current->thread.fp_state.fpscr = vcpu->arch.fpscr;
/*
* Since we can't trap on MSR_FP in GS-mode, we consider the guest
@@ -728,6 +716,7 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
debug = current->thread.debug;
current->thread.debug = vcpu->arch.shadow_dbg_reg;
+ vcpu->arch.pgdir = current->mm->pgd;
kvmppc_fix_ee_before_entry();
ret = __kvmppc_vcpu_run(kvm_run, vcpu);
@@ -743,15 +732,6 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
kvmppc_save_guest_fp(vcpu);
vcpu->fpu_active = 0;
-
- /* Save guest FPU state from thread */
- memcpy(vcpu->arch.fpr, current->thread.fp_state.fpr,
- sizeof(vcpu->arch.fpr));
- vcpu->arch.fpscr = current->thread.fp_state.fpscr;
-
- /* Restore userspace FPU state from stack */
- current->thread.fp_state = fp;
- current->thread.fpexc_mode = fpexc_mode;
#endif
out:
@@ -898,17 +878,6 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
int s;
int idx;
-#ifdef CONFIG_PPC64
- WARN_ON(local_paca->irq_happened != 0);
-#endif
-
- /*
- * We enter with interrupts disabled in hardware, but
- * we need to call hard_irq_disable anyway to ensure that
- * the software state is kept in sync.
- */
- hard_irq_disable();
-
/* update before a new last_exit_type is rewritten */
kvmppc_update_timing_stats(vcpu);
@@ -1217,12 +1186,11 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
* aren't already exiting to userspace for some other reason.
*/
if (!(r & RESUME_HOST)) {
- local_irq_disable();
s = kvmppc_prepare_to_enter(vcpu);
- if (s <= 0) {
- local_irq_enable();
+ if (s <= 0)
r = (s << 2) | RESUME_HOST | (r & RESUME_FLAG_NV);
- } else {
+ else {
+ /* interrupts now hard-disabled */
kvmppc_fix_ee_before_entry();
}
}
diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h
index 09bfd9b..b632cd3 100644
--- a/arch/powerpc/kvm/booke.h
+++ b/arch/powerpc/kvm/booke.h
@@ -136,7 +136,9 @@ static inline void kvmppc_load_guest_fp(struct kvm_vcpu *vcpu)
{
#ifdef CONFIG_PPC_FPU
if (vcpu->fpu_active && !(current->thread.regs->msr & MSR_FP)) {
- load_up_fpu();
+ enable_kernel_fp();
+ load_fp_state(&vcpu->arch.fp);
+ current->thread.fp_save_area = &vcpu->arch.fp;
current->thread.regs->msr |= MSR_FP;
}
#endif
@@ -151,6 +153,7 @@ static inline void kvmppc_save_guest_fp(struct kvm_vcpu *vcpu)
#ifdef CONFIG_PPC_FPU
if (vcpu->fpu_active && (current->thread.regs->msr & MSR_FP))
giveup_fpu(current);
+ current->thread.fp_save_area = NULL;
#endif
}
diff --git a/arch/powerpc/kvm/bookehv_interrupts.S b/arch/powerpc/kvm/bookehv_interrupts.S
index a0d6929..e4185f6 100644
--- a/arch/powerpc/kvm/bookehv_interrupts.S
+++ b/arch/powerpc/kvm/bookehv_interrupts.S
@@ -33,6 +33,8 @@
#ifdef CONFIG_64BIT
#include <asm/exception-64e.h>
+#include <asm/hw_irq.h>
+#include <asm/irqflags.h>
#else
#include "../kernel/head_booke.h" /* for THREAD_NORMSAVE() */
#endif
@@ -467,6 +469,15 @@ _GLOBAL(kvmppc_resume_host)
mtspr SPRN_EPCR, r3
isync
+#ifdef CONFIG_64BIT
+ /*
+ * We enter with interrupts disabled in hardware, but
+ * we need to call RECONCILE_IRQ_STATE to ensure
+ * that the software state is kept in sync.
+ */
+ RECONCILE_IRQ_STATE(r3,r5)
+#endif
+
/* Switch to kernel stack and jump to handler. */
PPC_LL r3, HOST_RUN(r1)
mr r5, r14 /* intno */
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index 497b142..2e02ed8 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -16,6 +16,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@@ -573,3 +575,5 @@ static void __exit kvmppc_e500_exit(void)
module_init(kvmppc_e500_init);
module_exit(kvmppc_e500_exit);
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index 4fd9650..a326178 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -31,11 +31,13 @@ enum vcpu_ftr {
#define E500_TLB_NUM 2
/* entry is mapped somewhere in host TLB */
-#define E500_TLB_VALID (1 << 0)
+#define E500_TLB_VALID (1 << 31)
/* TLB1 entry is mapped by host TLB1, tracked by bitmaps */
-#define E500_TLB_BITMAP (1 << 1)
+#define E500_TLB_BITMAP (1 << 30)
/* TLB1 entry is mapped by host TLB0 */
-#define E500_TLB_TLB0 (1 << 2)
+#define E500_TLB_TLB0 (1 << 29)
+/* bits [6-5] MAS2_X1 and MAS2_X0 and [4-0] bits for WIMGE */
+#define E500_TLB_MAS2_ATTR (0x7f)
struct tlbe_ref {
pfn_t pfn; /* valid only for TLB0, except briefly */
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index ebca6b8..50860e9 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -127,7 +127,7 @@ static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
}
static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
- unsigned int eaddr, int as)
+ gva_t eaddr, int as)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
unsigned int victim, tsized;
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index ecf2247..dd2cc03 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -65,15 +65,6 @@ static inline u32 e500_shadow_mas3_attrib(u32 mas3, int usermode)
return mas3;
}
-static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode)
-{
-#ifdef CONFIG_SMP
- return (mas2 & MAS2_ATTRIB_MASK) | MAS2_M;
-#else
- return mas2 & MAS2_ATTRIB_MASK;
-#endif
-}
-
/*
* writing shadow tlb entry to host TLB
*/
@@ -231,15 +222,15 @@ void inval_gtlbe_on_host(struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel,
ref->flags &= ~(E500_TLB_TLB0 | E500_TLB_VALID);
}
- /* Already invalidated in between */
- if (!(ref->flags & E500_TLB_VALID))
- return;
-
- /* Guest tlbe is backed by at most one host tlbe per shadow pid. */
- kvmppc_e500_tlbil_one(vcpu_e500, gtlbe);
+ /*
+ * If TLB entry is still valid then it's a TLB0 entry, and thus
+ * backed by at most one host tlbe per shadow pid
+ */
+ if (ref->flags & E500_TLB_VALID)
+ kvmppc_e500_tlbil_one(vcpu_e500, gtlbe);
/* Mark the TLB as not backed by the host anymore */
- ref->flags &= ~E500_TLB_VALID;
+ ref->flags = 0;
}
static inline int tlbe_is_writable(struct kvm_book3e_206_tlb_entry *tlbe)
@@ -249,10 +240,13 @@ static inline int tlbe_is_writable(struct kvm_book3e_206_tlb_entry *tlbe)
static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref,
struct kvm_book3e_206_tlb_entry *gtlbe,
- pfn_t pfn)
+ pfn_t pfn, unsigned int wimg)
{
ref->pfn = pfn;
- ref->flags |= E500_TLB_VALID;
+ ref->flags = E500_TLB_VALID;
+
+ /* Use guest supplied MAS2_G and MAS2_E */
+ ref->flags |= (gtlbe->mas2 & MAS2_ATTRIB_MASK) | wimg;
/* Mark the page accessed */
kvm_set_pfn_accessed(pfn);
@@ -316,8 +310,7 @@ static void kvmppc_e500_setup_stlbe(
/* Force IPROT=0 for all guest mappings. */
stlbe->mas1 = MAS1_TSIZE(tsize) | get_tlb_sts(gtlbe) | MAS1_VALID;
- stlbe->mas2 = (gvaddr & MAS2_EPN) |
- e500_shadow_mas2_attrib(gtlbe->mas2, pr);
+ stlbe->mas2 = (gvaddr & MAS2_EPN) | (ref->flags & E500_TLB_MAS2_ATTR);
stlbe->mas7_3 = ((u64)pfn << PAGE_SHIFT) |
e500_shadow_mas3_attrib(gtlbe->mas7_3, pr);
@@ -339,6 +332,10 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
int ret = 0;
unsigned long mmu_seq;
struct kvm *kvm = vcpu_e500->vcpu.kvm;
+ unsigned long tsize_pages = 0;
+ pte_t *ptep;
+ unsigned int wimg = 0;
+ pgd_t *pgdir;
/* used to check for invalidations in progress */
mmu_seq = kvm->mmu_notifier_seq;
@@ -405,7 +402,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
*/
for (; tsize > BOOK3E_PAGESZ_4K; tsize -= 2) {
- unsigned long gfn_start, gfn_end, tsize_pages;
+ unsigned long gfn_start, gfn_end;
tsize_pages = 1 << (tsize - 2);
gfn_start = gfn & ~(tsize_pages - 1);
@@ -447,11 +444,12 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
}
if (likely(!pfnmap)) {
- unsigned long tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
+ tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
pfn = gfn_to_pfn_memslot(slot, gfn);
if (is_error_noslot_pfn(pfn)) {
- printk(KERN_ERR "Couldn't get real page for gfn %lx!\n",
- (long)gfn);
+ if (printk_ratelimit())
+ pr_err("%s: real page not found for gfn %lx\n",
+ __func__, (long)gfn);
return -EINVAL;
}
@@ -466,7 +464,18 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
goto out;
}
- kvmppc_e500_ref_setup(ref, gtlbe, pfn);
+
+ pgdir = vcpu_e500->vcpu.arch.pgdir;
+ ptep = lookup_linux_ptep(pgdir, hva, &tsize_pages);
+ if (pte_present(*ptep))
+ wimg = (*ptep >> PTE_WIMGE_SHIFT) & MAS2_WIMGE_MASK;
+ else {
+ if (printk_ratelimit())
+ pr_err("%s: pte not present: gfn %lx, pfn %lx\n",
+ __func__, (long)gfn, pfn);
+ return -EINVAL;
+ }
+ kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg);
kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize,
ref, gvaddr, stlbe);
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index 4132cd2..17e4562 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -16,6 +16,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@@ -391,3 +393,5 @@ static void __exit kvmppc_e500mc_exit(void)
module_init(kvmppc_e500mc_init);
module_exit(kvmppc_e500mc_exit);
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 2f9a087..c2b887b 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -219,7 +219,6 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
* lmw
* stmw
*
- * XXX is_bigendian should depend on MMU mapping or MSR[LE]
*/
/* XXX Should probably auto-generate instruction decoding for a particular core
* from opcode tables in the future. */
diff --git a/arch/powerpc/kvm/mpic.c b/arch/powerpc/kvm/mpic.c
index 2861ae9..efbd996 100644
--- a/arch/powerpc/kvm/mpic.c
+++ b/arch/powerpc/kvm/mpic.c
@@ -1635,6 +1635,7 @@ static void mpic_destroy(struct kvm_device *dev)
dev->kvm->arch.mpic = NULL;
kfree(opp);
+ kfree(dev);
}
static int mpic_set_default_irq_routing(struct openpic *opp)
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 9ae9768..3cf541a 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -68,14 +68,16 @@ int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
*/
int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
{
- int r = 1;
+ int r;
+
+ WARN_ON(irqs_disabled());
+ hard_irq_disable();
- WARN_ON_ONCE(!irqs_disabled());
while (true) {
if (need_resched()) {
local_irq_enable();
cond_resched();
- local_irq_disable();
+ hard_irq_disable();
continue;
}
@@ -101,7 +103,7 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
local_irq_enable();
trace_kvm_check_requests(vcpu);
r = kvmppc_core_check_requests(vcpu);
- local_irq_disable();
+ hard_irq_disable();
if (r > 0)
continue;
break;
@@ -113,22 +115,12 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
continue;
}
-#ifdef CONFIG_PPC64
- /* lazy EE magic */
- hard_irq_disable();
- if (lazy_irq_pending()) {
- /* Got an interrupt in between, try again */
- local_irq_enable();
- local_irq_disable();
- kvm_guest_exit();
- continue;
- }
-#endif
-
kvm_guest_enter();
- break;
+ return 1;
}
+ /* return to host */
+ local_irq_enable();
return r;
}
EXPORT_SYMBOL_GPL(kvmppc_prepare_to_enter);
@@ -656,14 +648,14 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
break;
case KVM_MMIO_REG_FPR:
- vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
+ VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr;
break;
#ifdef CONFIG_PPC_BOOK3S
case KVM_MMIO_REG_QPR:
vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
case KVM_MMIO_REG_FQPR:
- vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
+ VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr;
vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
#endif
@@ -673,9 +665,19 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
}
int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
- unsigned int rt, unsigned int bytes, int is_bigendian)
+ unsigned int rt, unsigned int bytes,
+ int is_default_endian)
{
int idx, ret;
+ int is_bigendian;
+
+ if (kvmppc_need_byteswap(vcpu)) {
+ /* Default endianness is "little endian". */
+ is_bigendian = !is_default_endian;
+ } else {
+ /* Default endianness is "big endian". */
+ is_bigendian = is_default_endian;
+ }
if (bytes > sizeof(run->mmio.data)) {
printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
@@ -711,21 +713,31 @@ EXPORT_SYMBOL_GPL(kvmppc_handle_load);
/* Same as above, but sign extends */
int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
- unsigned int rt, unsigned int bytes, int is_bigendian)
+ unsigned int rt, unsigned int bytes,
+ int is_default_endian)
{
int r;
vcpu->arch.mmio_sign_extend = 1;
- r = kvmppc_handle_load(run, vcpu, rt, bytes, is_bigendian);
+ r = kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian);
return r;
}
int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
- u64 val, unsigned int bytes, int is_bigendian)
+ u64 val, unsigned int bytes, int is_default_endian)
{
void *data = run->mmio.data;
int idx, ret;
+ int is_bigendian;
+
+ if (kvmppc_need_byteswap(vcpu)) {
+ /* Default endianness is "little endian". */
+ is_bigendian = !is_default_endian;
+ } else {
+ /* Default endianness is "big endian". */
+ is_bigendian = is_default_endian;
+ }
if (bytes > sizeof(run->mmio.data)) {
printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,

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