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KVM: SVM: Don't strip the C-bit from CR2 on #PF interception

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commit 6d1b867d04 upstream.

Don't strip the C-bit from the faulting address on an intercepted #PF,
the address is a virtual address, not a physical address.

Fixes: 0ede79e132 ("KVM: SVM: Clear C-bit from the page fault address")
Cc: stable@vger.kernel.org
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210305011101.3597423-13-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sean Christopherson 2021-03-04 17:10:56 -08:00 • committed by Greg Kroah-Hartman
commit ead4fb53fd
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/svm/svm.c
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@ -1805,7 +1805,7 @@ static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned long value)
static int pf_interception(struct vcpu_svm *svm)
{
u64 fault_address = __sme_clr(svm->vmcb->control.exit_info_2);
u64 fault_address = 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,