[PATCH v2 2/3] KVM: x86: drop bogus MWAIT check

2017-11-29 Thread Radim Krčmář
The check was added in some iteration while trying to fix a reported OS X on Core 2 bug, but that bug is elsewhere. The comment is misleading because the guest can call MWAIT with ECX = 0 even if we enforce CPUID5_ECX_INTERRUPT_BREAK; the call would have the exactly the same effect as if the

[PATCH v2 2/3] KVM: x86: drop bogus MWAIT check

2017-11-29 Thread Radim Krčmář
The check was added in some iteration while trying to fix a reported OS X on Core 2 bug, but that bug is elsewhere. The comment is misleading because the guest can call MWAIT with ECX = 0 even if we enforce CPUID5_ECX_INTERRUPT_BREAK; the call would have the exactly the same effect as if the