| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 099/113] KVM: nVMX: Dont emulate instructions in guest mode | Date | Thu, 27 Feb 2020 14:36:55 +0100 |
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From: Paolo Bonzini <pbonzini@redhat.com>
[ Upstream commit 07721feee46b4b248402133228235318199b05ec ]
vmx_check_intercept is not yet fully implemented. To avoid emulating instructions disallowed by the L1 hypervisor, refuse to emulate instructions by default.
Cc: stable@vger.kernel.org [Made commit, added commit msg - Oliver] Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -10759,7 +10759,7 @@ static int vmx_check_intercept(struct kv } /* TODO: check more intercepts... */ - return X86EMUL_CONTINUE; + return X86EMUL_UNHANDLEABLE; } static void vmx_sched_in(struct kvm_vcpu *vcpu, int cpu)
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