From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: jmontleo@redhat.com, bdas@redhat.com, stable@vger.kernel.org
Subject: [PATCH 1/3] KVM: VMX: avoid guest hang on invalid invept instruction
Date: Fri, 18 Mar 2016 17:09:37 +0100 [thread overview]
Message-ID: <1458317379-8363-2-git-send-email-pbonzini@redhat.com> (raw)
In-Reply-To: <1458317379-8363-1-git-send-email-pbonzini@redhat.com>
A guest executing an invalid invept instruction would hang
because the instruction pointer was not updated.
Cc: stable@vger.kernel.org
Fixes: bfd0a56b90005f8c8a004baf407ad90045c2b11e
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/vmx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 5e45c2731a5d..17b20b52d30e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7399,6 +7399,7 @@ static int handle_invept(struct kvm_vcpu *vcpu)
if (!(types & (1UL << type))) {
nested_vmx_failValid(vcpu,
VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
+ skip_emulated_instruction(vcpu);
return 1;
}
--
1.8.3.1
next prev parent reply other threads:[~2016-03-18 16:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-18 16:09 [PATCH 0/3] KVM: VMX: fix handling inv{ept,vpid} and nested RHEL6 KVM Paolo Bonzini
2016-03-18 16:09 ` Paolo Bonzini [this message]
2016-03-18 16:09 ` [PATCH 2/3] KVM: VMX: avoid guest hang on invalid invvpid instruction Paolo Bonzini
2016-03-18 16:09 ` [PATCH 3/3] KVM: VMX: fix nested vpid for old KVM guests Paolo Bonzini
2016-03-18 17:42 ` [PATCH 0/3] KVM: VMX: fix handling inv{ept,vpid} and nested RHEL6 KVM David Matlack
2016-03-18 17:58 ` Paolo Bonzini
2016-03-18 18:04 ` David Matlack
2016-03-19 9:53 ` Paolo Bonzini
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