On 04/29/2010 07:09 PM, Shane Wang wrote:
Per document, for feature control MSR
Bit 1 enables VMXON in SMX operation. If the bit is clear, execution of VMXON in SMX operation causes a general-protection exception.
Bit 2 enables VMXON outside SMX operation. If the bit is clear, execution of VMXON outside SMX operation causes a general-protection exception.
This patch is to enable this kind of check with SMX for VMXON in KVM.
Looks good.
@@ -1176,9 +1177,16 @@ static __init int vmx_disabled_by_bios(v
u64 msr;
rdmsrl(MSR_IA32_FEATURE_CONTROL, msr);
- return (msr& (FEATURE_CONTROL_LOCKED |
- FEATURE_CONTROL_VMXON_ENABLED))
- == FEATURE_CONTROL_LOCKED;
+ if (!!(msr& FEATURE_CONTROL_LOCKED)) {
!! not really necessary here (no need to resend, we can fix while applying).
--
error compiling committee.c: too many arguments to function
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