diff options
Diffstat (limited to 'arch/x86/kernel/fpu/xstate.c')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 733a8aec7bd7..cd7f1a6bd933 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -76,10 +76,11 @@ int cpu_has_xfeatures(u64 xfeatures_needed, const char **feature_name) EXPORT_SYMBOL_GPL(cpu_has_xfeatures); /* - * When executing XSAVEOPT (optimized XSAVE), if a processor implementation - * detects that an FPU state component is still (or is again) in its - * initialized state, it may clear the corresponding bit in the header.xfeatures - * field, and can skip the writeout of registers to the corresponding memory layout. + * When executing XSAVEOPT (or other optimized XSAVE instructions), if + * a processor implementation detects that an FPU state component is still + * (or is again) in its initialized state, it may clear the corresponding + * bit in the header.xfeatures field, and can skip the writeout of registers + * to the corresponding memory layout. * * This means that when the bit is zero, the state component might still contain * some previous - non-initialized register state. |