diff options
Diffstat (limited to 'sys/amd64/vmm/x86.c')
| -rw-r--r-- | sys/amd64/vmm/x86.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/amd64/vmm/x86.c b/sys/amd64/vmm/x86.c index 3c5ca19..0b32eef 100644 --- a/sys/amd64/vmm/x86.c +++ b/sys/amd64/vmm/x86.c @@ -167,6 +167,11 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id, regs[2] &= ~AMDID2_PTSCEL2I; /* + * Don't advertise Instruction Based Sampling feature. + */ + regs[2] &= ~AMDID2_IBS; + + /* * Hide rdtscp/ia32_tsc_aux until we know how * to deal with them. */ |
