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authorPaolo Bonzini <pbonzini@redhat.com>2020-02-05 02:26:29 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2020-02-23 12:11:55 +0300
commit07721feee46b4b248402133228235318199b05ec (patch)
treeff3c54f27b868ad188b952cef4b44a371918d166 /arch
parent5ef8acbdd687c9d72582e2c05c0b9756efb37863 (diff)
downloadlinux-07721feee46b4b248402133228235318199b05ec.tar.xz
KVM: nVMX: Don't emulate instructions in guest mode
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/vmx/vmx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index dcca514ffd42..5801a86f9c24 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7164,7 +7164,7 @@ static int vmx_check_intercept(struct kvm_vcpu *vcpu,
}
/* TODO: check more intercepts... */
- return X86EMUL_CONTINUE;
+ return X86EMUL_UNHANDLEABLE;
}
#ifdef CONFIG_X86_64