diff options
Diffstat (limited to 'sys/amd64/amd64/initcpu.c')
| -rw-r--r-- | sys/amd64/amd64/initcpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/amd64/amd64/initcpu.c b/sys/amd64/amd64/initcpu.c index 4376dd0..7aaff82 100644 --- a/sys/amd64/amd64/initcpu.c +++ b/sys/amd64/amd64/initcpu.c @@ -165,4 +165,10 @@ initializecpu(void) */ if ((cpu_feature & CPUID_CLFSH) != 0) cpu_clflush_line_size = ((cpu_procinfo >> 8) & 0xff) * 8; + /* + * XXXKIB: (temporary) hack to work around traps generated when + * CLFLUSHing APIC registers window. + */ + if (cpu_vendor_id == CPU_VENDOR_INTEL && !(cpu_feature & CPUID_SS)) + cpu_feature &= ~CPUID_CLFSH; } |
