diff options
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/alternative.h | 6 | ||||
| -rw-r--r-- | arch/x86/include/asm/fpu/xstate.h | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index ba32af0..7bfc85b 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -52,6 +52,12 @@ struct alt_instr { u8 padlen; /* length of build-time padding */ } __packed; +/* + * Debug flag that can be tested to see whether alternative + * instructions were patched in already: + */ +extern int alternatives_patched; + extern void alternative_instructions(void); extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h index 31a002a..ab2c507 100644 --- a/arch/x86/include/asm/fpu/xstate.h +++ b/arch/x86/include/asm/fpu/xstate.h @@ -119,7 +119,7 @@ static inline int xsave_state(struct xsave_struct *fx) u32 hmask = mask >> 32; int err = 0; - WARN_ON(system_state == SYSTEM_BOOTING); + WARN_ON(!alternatives_patched); /* * If xsaves is enabled, xsaves replaces xsaveopt because |
