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[5.11,100/601] KVM: SVM: Dont strip the C-bit from CR2 on #PF interception

Message ID 20210512144831.131474621@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH May 12, 2021, 2:42 p.m. UTC 
From: Sean Christopherson <seanjc@google.com>

commit 6d1b867d045699d6ce0dfa0ef35d1b87dd36db56 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: 0ede79e13224 ("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>
---
 arch/x86/kvm/svm/svm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1888,7 +1888,7 @@  static void svm_set_dr7(struct kvm_vcpu
 
 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,