From: Avi Kivity <avi@qumranet.com>
Date: Thu, 28 Aug 2008 15:27:15 +0000 (+0300)
Subject: KVM: SVM: No need to unprotect memory during event injection when using npt
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=48d150394999c542b2e828f03da226842950d46a;p=linux-beck.git

KVM: SVM: No need to unprotect memory during event injection when using npt

No memory is protected anyway.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index be86c096385b..60228888d1b5 100644
--- 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);
 }