Commits
Gabriel L. Somlo committed 87c00572ba0
kvm: x86: emulate monitor and mwait instructions as nop Treat monitor and mwait instructions as nop, which is architecturally correct (but inefficient) behavior. We do this to prevent misbehaving guests (e.g. OS X <= 10.7) from crashing after they fail to check for monitor/mwait availability via cpuid. Since mwait-based idle loops relying on these nop-emulated instructions would keep the host CPU pegged at 100%, do NOT advertise their presence via cpuid, to prevent compliant guests from using them inadvertently. Signed-off-by: Gabriel L. Somlo <somlo@cmu.edu> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>