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-rw-r--r--arch/s390/include/asm/kvm_host.h1
-rw-r--r--arch/s390/kvm/kvm-s390.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 463c24e26000..74f9a036bab2 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -459,6 +459,7 @@ struct kvm_vcpu_stat {
u64 diagnose_308;
u64 diagnose_500;
u64 diagnose_other;
+ u64 pfault_sync;
};
#define PGM_OPERATION 0x01
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 19804c388d61..065f94f22fd3 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -60,6 +60,7 @@
struct kvm_stats_debugfs_item debugfs_entries[] = {
VCPU_STAT("userspace_handled", exit_userspace),
VCPU_STAT("exit_null", exit_null),
+ VCPU_STAT("pfault_sync", pfault_sync),
VCPU_STAT("exit_validity", exit_validity),
VCPU_STAT("exit_stop_request", exit_stop_request),
VCPU_STAT("exit_external_request", exit_external_request),
@@ -4111,6 +4112,7 @@ static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
current->thread.gmap_pfault = 0;
if (kvm_arch_setup_async_pf(vcpu))
return 0;
+ vcpu->stat.pfault_sync++;
return kvm_arch_fault_in_page(vcpu, current->thread.gmap_addr, 1);
}
return vcpu_post_run_fault_in_sie(vcpu);

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