diff options
| author | Peter Grehan <grehan@FreeBSD.org> | 2017-03-16 03:21:42 +0000 |
|---|---|---|
| committer | Peter Grehan <grehan@FreeBSD.org> | 2017-03-16 03:21:42 +0000 |
| commit | 3da443021fdbd2141faf7651fb8433c80d316d7f (patch) | |
| tree | e9519fc284c3ccff31d7ee5482a594cdbaf65e3e | |
| parent | 494deaf8621bb0d7542dcbeb065935f65b5a1441 (diff) | |
Notes
| -rw-r--r-- | sys/amd64/vmm/x86.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/amd64/vmm/x86.c b/sys/amd64/vmm/x86.c index 525e1d9b912f..61d99d502ac2 100644 --- a/sys/amd64/vmm/x86.c +++ b/sys/amd64/vmm/x86.c @@ -176,6 +176,9 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id, /* Don't advertise the OS visible workaround feature */ regs[2] &= ~AMDID2_OSVW; + /* Hide mwaitx/monitorx capability from the guest */ + regs[2] &= ~AMDID2_MWAITX; + /* * Hide rdtscp/ia32_tsc_aux until we know how * to deal with them. |