diff options
Diffstat (limited to 'sys/x86')
| -rw-r--r-- | sys/x86/x86/identcpu.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/sys/x86/x86/identcpu.c b/sys/x86/x86/identcpu.c index 22f3966..257edad7 100644 --- a/sys/x86/x86/identcpu.c +++ b/sys/x86/x86/identcpu.c @@ -1421,18 +1421,15 @@ identify_cpu(void) cpu_stdext_feature = regs[1]; /* - * Some hypervisors fail to filter out unsupported - * extended features. For now, disable the + * Some hypervisors failed to filter out unsupported + * extended features. Allow to disable the * extensions, activation of which requires setting a * bit in CR4, and which VM monitors do not support. */ - if (cpu_feature2 & CPUID2_HV) { - cpu_stdext_disable = CPUID_STDEXT_FSGSBASE | - CPUID_STDEXT_SMEP; - } else - cpu_stdext_disable = 0; + cpu_stdext_disable = 0; TUNABLE_INT_FETCH("hw.cpu_stdext_disable", &cpu_stdext_disable); cpu_stdext_feature &= ~cpu_stdext_disable; + cpu_stdext_feature2 = regs[2]; } |
