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Date: Wed, 1 Nov 2017 16:17:21 -0500 From: Brijesh Singh <brijesh.singh@....com> To: kvm@...r.kernel.org, linux-kernel@...r.kernel.org Cc: bp@...en8.de, Brijesh Singh <brijesh.singh@....com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Paolo Bonzini <pbonzini@...hat.com>, Radim Krčmář <rkrcmar@...hat.com>, Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...e.de>, Tom Lendacky <thomas.lendacky@....com>, x86@...nel.org Subject: [Part2 PATCH v7 36/38] KVM: SVM: Clear C-bit from the page fault address When SEV is active, on #NPF the page fault address will contain the C-bit. We must clear the C-bit before handling the fault. Cc: Thomas Gleixner <tglx@...utronix.de> Cc: Ingo Molnar <mingo@...hat.com> Cc: "H. Peter Anvin" <hpa@...or.com> Cc: Paolo Bonzini <pbonzini@...hat.com> Cc: "Radim Krčmář" <rkrcmar@...hat.com> Cc: Joerg Roedel <joro@...tes.org> Cc: Borislav Petkov <bp@...e.de> Cc: Tom Lendacky <thomas.lendacky@....com> Cc: x86@...nel.org Cc: kvm@...r.kernel.org Cc: linux-kernel@...r.kernel.org Reviewed-by: Borislav Petkov <bp@...e.de> Signed-off-by: Brijesh Singh <brijesh.singh@....com> --- arch/x86/kvm/svm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 6df96d4c164f..a0e5e22bb661 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2404,7 +2404,7 @@ static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned long value) static int pf_interception(struct vcpu_svm *svm) { - u64 fault_address = svm->vmcb->control.exit_info_2; + u64 fault_address = __sme_clr(svm->vmcb->control.exit_info_2); u64 error_code = svm->vmcb->control.exit_info_1; return kvm_handle_page_fault(&svm->vcpu, error_code, fault_address, -- 2.9.5
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