Author: neel
Date: Sat May 2 19:07:49 2015
New Revision: 282351
URL: https://svnweb.freebsd.org/changeset/base/282351
Log:
Don't advertise the Intel SMX capability to the guest.
Reported by: Leon Dang (ld...@nahannisys.com)
MFC after: 1 week
Modified:
head/sys/amd64/vmm/x86.c
Modified: head/sys/amd64/vmm/x86.c
==============================================================================
--- head/sys/amd64/vmm/x86.c Sat May 2 18:12:34 2015 (r282350)
+++ head/sys/amd64/vmm/x86.c Sat May 2 19:07:49 2015 (r282351)
@@ -230,10 +230,11 @@ x86_emulate_cpuid(struct vm *vm, int vcp
regs[1] |= (vcpu_id << CPUID_0000_0001_APICID_SHIFT);
/*
- * Don't expose VMX, SpeedStep or TME capability.
+ * Don't expose VMX, SpeedStep, TME or SMX capability.
* Advertise x2APIC capability and Hypervisor guest.
*/
regs[2] &= ~(CPUID2_VMX | CPUID2_EST | CPUID2_TM2);
+ regs[2] &= ~(CPUID2_SMX);
regs[2] |= CPUID2_HV;
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