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KVM: SVM: No need to unprotect memory during event injection when using npt
author
Avi Kivity
<avi@qumranet.com>
Thu, 28 Aug 2008 15:27:15 +0000
(18:27 +0300)
committer
Avi Kivity
<avi@qumranet.com>
Wed, 15 Oct 2008 08:15:24 +0000
(10:15 +0200)
No memory is protected anyway.
Signed-off-by: Avi Kivity <avi@qumranet.com>
arch/x86/kvm/svm.c
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diff --git
a/arch/x86/kvm/svm.c
b/arch/x86/kvm/svm.c
index
be86c09
..
6022888
100644
(file)
--- a/
arch/x86/kvm/svm.c
+++ b/
arch/x86/kvm/svm.c
@@
-1021,7
+1021,7
@@
static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
if (npt_enabled)
svm_flush_tlb(&svm->vcpu);
- if (event_injection)
+ if (
!npt_enabled &&
event_injection)
kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address);
return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
}