Commit d0164c16 authored by Sukrit Bhatnagar's avatar Sukrit Bhatnagar Committed by Sean Christopherson
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KVM: VMX: Fix check for valid GVA on an EPT violation 



On an EPT violation, bit 7 of the exit qualification is set if the
guest linear-address is valid. The derived page fault error code
should not be checked for this bit.

Fixes: f3009482 ("KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSukrit Bhatnagar <Sukrit.Bhatnagar@sony.com>
Reviewed-by: default avatarXiaoyao Li <xiaoyao.li@intel.com>
Link: https://patch.msgid.link/20251106052853.3071088-1-Sukrit.Bhatnagar@sony.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent ae431059

arch/x86/kvm/vmx/common.h

+1 −1
Original line number Diff line number Diff line
@@ -98,7 +98,7 @@ static inline int __vmx_handle_ept_violation(struct kvm_vcpu *vcpu, gpa_t gpa, 
	error_code |= (exit_qualification & EPT_VIOLATION_PROT_MASK)

		      ? PFERR_PRESENT_MASK : 0;



	if (error_code & EPT_VIOLATION_GVA_IS_VALID)

	if (exit_qualification & EPT_VIOLATION_GVA_IS_VALID)

		error_code |= (exit_qualification & EPT_VIOLATION_GVA_TRANSLATED) ?

			      PFERR_GUEST_FINAL_MASK : PFERR_GUEST_PAGE_MASK;