diff options
Diffstat (limited to 'arch/x86/include/asm/microcode.h')
| -rw-r--r-- | arch/x86/include/asm/microcode.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h index 43d921b4752..64dc362506b 100644 --- a/arch/x86/include/asm/microcode.h +++ b/arch/x86/include/asm/microcode.h @@ -1,6 +1,21 @@ #ifndef _ASM_X86_MICROCODE_H #define _ASM_X86_MICROCODE_H +#define native_rdmsr(msr, val1, val2) \ +do { \ + u64 __val = native_read_msr((msr)); \ + (void)((val1) = (u32)__val); \ + (void)((val2) = (u32)(__val >> 32)); \ +} while (0) + +#define native_wrmsr(msr, low, high) \ + native_write_msr(msr, low, high) + +#define native_wrmsrl(msr, val) \ + native_write_msr((msr), \ + (u32)((u64)(val)), \ + (u32)((u64)(val) >> 32)) + struct cpu_signature { unsigned int sig; unsigned int pf; @@ -10,6 +25,7 @@ struct cpu_signature { struct device; enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND }; +extern bool dis_ucode_ldr; struct microcode_ops { enum ucode_state (*request_microcode_user) (int cpu, @@ -57,4 +73,18 @@ static inline struct microcode_ops * __init init_amd_microcode(void) static inline void __exit exit_amd_microcode(void) {} #endif +#ifdef CONFIG_MICROCODE_EARLY +#define MAX_UCODE_COUNT 128 +extern void __init load_ucode_bsp(void); +extern void load_ucode_ap(void); +extern int __init save_microcode_in_initrd(void); +#else +static inline void __init load_ucode_bsp(void) {} +static inline void load_ucode_ap(void) {} +static inline int __init save_microcode_in_initrd(void) +{ + return 0; +} +#endif + #endif /* _ASM_X86_MICROCODE_H */ |