1 #ifndef _ASM_X86_MICROCODE_INTEL_H 2 #define _ASM_X86_MICROCODE_INTEL_H 3 4 #include <asm/microcode.h> 5 6 struct microcode_header_intel { 7 unsigned int hdrver; 8 unsigned int rev; 9 unsigned int date; 10 unsigned int sig; 11 unsigned int cksum; 12 unsigned int ldrver; 13 unsigned int pf; 14 unsigned int datasize; 15 unsigned int totalsize; 16 unsigned int reserved[3]; 17 }; 18 19 struct microcode_intel { 20 struct microcode_header_intel hdr; 21 unsigned int bits[0]; 22 }; 23 24 /* microcode format is extended from prescott processors */ 25 struct extended_signature { 26 unsigned int sig; 27 unsigned int pf; 28 unsigned int cksum; 29 }; 30 31 struct extended_sigtable { 32 unsigned int count; 33 unsigned int cksum; 34 unsigned int reserved[3]; 35 struct extended_signature sigs[0]; 36 }; 37 38 #define DEFAULT_UCODE_DATASIZE (2000) 39 #define MC_HEADER_SIZE (sizeof(struct microcode_header_intel)) 40 #define DEFAULT_UCODE_TOTALSIZE (DEFAULT_UCODE_DATASIZE + MC_HEADER_SIZE) 41 #define EXT_HEADER_SIZE (sizeof(struct extended_sigtable)) 42 #define EXT_SIGNATURE_SIZE (sizeof(struct extended_signature)) 43 #define DWSIZE (sizeof(u32)) 44 45 #define get_totalsize(mc) \ 46 (((struct microcode_intel *)mc)->hdr.datasize ? \ 47 ((struct microcode_intel *)mc)->hdr.totalsize : \ 48 DEFAULT_UCODE_TOTALSIZE) 49 50 #define get_datasize(mc) \ 51 (((struct microcode_intel *)mc)->hdr.datasize ? \ 52 ((struct microcode_intel *)mc)->hdr.datasize : DEFAULT_UCODE_DATASIZE) 53 54 #define exttable_size(et) ((et)->count * EXT_SIGNATURE_SIZE + EXT_HEADER_SIZE) 55 56 extern int has_newer_microcode(void *mc, unsigned int csig, int cpf, int rev); 57 extern int microcode_sanity_check(void *mc, int print_err); 58 extern int find_matching_signature(void *mc, unsigned int csig, int cpf); 59 60 #ifdef CONFIG_MICROCODE_INTEL 61 extern void __init load_ucode_intel_bsp(void); 62 extern void load_ucode_intel_ap(void); 63 extern void show_ucode_info_early(void); 64 extern int __init save_microcode_in_initrd_intel(void); 65 void reload_ucode_intel(void); 66 #else load_ucode_intel_bsp(void)67static inline __init void load_ucode_intel_bsp(void) {} load_ucode_intel_ap(void)68static inline void load_ucode_intel_ap(void) {} show_ucode_info_early(void)69static inline void show_ucode_info_early(void) {} save_microcode_in_initrd_intel(void)70static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; } reload_ucode_intel(void)71static inline void reload_ucode_intel(void) {} 72 #endif 73 74 #ifdef CONFIG_HOTPLUG_CPU 75 extern int save_mc_for_early(u8 *mc); 76 #else save_mc_for_early(u8 * mc)77static inline int save_mc_for_early(u8 *mc) { return 0; } 78 #endif 79 #endif /* _ASM_X86_MICROCODE_INTEL_H */ 80