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authorAlexander Graf <agraf@suse.de>2012-08-03 13:56:33 +0200
committerAlexander Graf <agraf@suse.de>2012-08-16 14:14:53 +0200
commit249ba1ee0f8fcb4e40caa5fbea11dafde201cc46 (patch)
treecbe2fcf2c4e0c966afb3a7cacc785b608304a40c /arch/powerpc/kvm/book3s_32_mmu_host.c
parent04f995a544d1289ffb8108849cd71b1325c5af6a (diff)
KVM: PPC: Add cache flush on page map
When we map a page that wasn't icache cleared before, do so when first mapping it in KVM using the same information bits as the Linux mapping logic. That way we are 100% sure that any page we map does not have stale entries in the icache. Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s_32_mmu_host.c')
-rw-r--r--arch/powerpc/kvm/book3s_32_mmu_host.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c
index f922c29bb234..837f13e7b6bf 100644
--- a/arch/powerpc/kvm/book3s_32_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_32_mmu_host.c
@@ -211,6 +211,9 @@ next_pteg:
pteg1 |= PP_RWRX;
}
+ if (orig_pte->may_execute)
+ kvmppc_mmu_flush_icache(hpaddr >> PAGE_SHIFT);
+
local_irq_disable();
if (pteg[rr]) {

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