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| author | Brijesh Singh <brijesh.singh@amd.com> | 2017-12-04 17:57:39 +0100 |
|---|---|---|
| committer | Brijesh Singh <brijesh.singh@amd.com> | 2017-12-04 20:33:14 +0100 |
| commit | 0ede79e1322479221fb0d0a7d2828d8ed033f060 (patch) | |
| tree | a7e163742dadb28f12aa9c1e0bf2a07ad4709861 /arch/x86/kvm | |
| parent | KVM: SVM: Pin guest memory when SEV is active (diff) | |
| download | linux-0ede79e1322479221fb0d0a7d2828d8ed033f060.tar.xz linux-0ede79e1322479221fb0d0a7d2828d8ed033f060.zip | |
KVM: SVM: Clear C-bit from the page fault address
When SEV is active, on #VMEXIT the page fault address will contain the
C-bit. We must clear the C-bit before handling the fault.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86@kernel.org
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/svm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index bdce5b4e71cc..f350e9bac9eb 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2430,7 +2430,7 @@ 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, @@ -2440,7 +2440,7 @@ static int pf_interception(struct vcpu_svm *svm) static int npf_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; trace_kvm_page_fault(fault_address, error_code); |