From 86dc39e580d8e3ffa42c8157d3e28249fd9a12c5 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 4 Feb 2020 15:26:29 -0800 Subject: KVM: nVMX: Don't emulate instructions in guest mode [ 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 Signed-off-by: Paolo Bonzini Signed-off-by: Sasha Levin --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f9a76164f486..4dc886d07d2a 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -11354,7 +11354,7 @@ static int vmx_check_intercept(struct kvm_vcpu *vcpu, } /* TODO: check more intercepts... */ - return X86EMUL_CONTINUE; + return X86EMUL_UNHANDLEABLE; } #ifdef CONFIG_X86_64 -- cgit v1.2.3