diff options
| author | Mike Larkin <mlarkin@cvs.openbsd.org> | 2017-04-02 20:21:45 +0000 |
|---|---|---|
| committer | Mike Larkin <mlarkin@cvs.openbsd.org> | 2017-04-02 20:21:45 +0000 |
| commit | 4eef80a1f1f9a5039b354a6d0187218b6170932e (patch) | |
| tree | bf3e8f8705e5bd0c956edeb888e9c98e1190d440 /sys/arch | |
| parent | 51d718f92adbd9cac22c23933d4b1ee2c3ae8b3a (diff) | |
Filter out RDTSCP, needed to handle solaris guests. We set the VMX control
to enable RDTSCP to 0, so when solaris attempted to use the instruction
(since it wasn't filtered out of CPUID information), the CPU issued an
#UD exception.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/amd64/amd64/vmm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/arch/amd64/amd64/vmm.c b/sys/arch/amd64/amd64/vmm.c index c72beaa3ebe..516e7bf757f 100644 --- a/sys/arch/amd64/amd64/vmm.c +++ b/sys/arch/amd64/amd64/vmm.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vmm.c,v 1.131 2017/03/28 21:38:44 mlarkin Exp $ */ +/* $OpenBSD: vmm.c,v 1.132 2017/04/02 20:21:44 mlarkin Exp $ */ /* * Copyright (c) 2014 Mike Larkin <mlarkin@openbsd.org> * @@ -4638,6 +4638,7 @@ vmm_handle_cpuid(struct vcpu *vcpu) *rbx = 0; /* Reserved */ *rcx = curcpu()->ci_efeature_ecx; *rdx = curcpu()->ci_feature_eflags; + *rdx &= ~CPUID_RDTSCP; break; case 0x80000002: /* Brand string */ *rax = curcpu()->ci_brand[0]; |