1#ifndef _ASM_X86_MICROCODE_INTEL_H 2#define _ASM_X86_MICROCODE_INTEL_H 3 4#include <asm/microcode.h> 5 6struct 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 19struct microcode_intel { 20 struct microcode_header_intel hdr; 21 unsigned int bits[0]; 22}; 23 24/* microcode format is extended from prescott processors */ 25struct extended_signature { 26 unsigned int sig; 27 unsigned int pf; 28 unsigned int cksum; 29}; 30 31struct 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 56extern int has_newer_microcode(void *mc, unsigned int csig, int cpf, int rev); 57extern int microcode_sanity_check(void *mc, int print_err); 58extern int find_matching_signature(void *mc, unsigned int csig, int cpf); 59 60#ifdef CONFIG_MICROCODE_INTEL 61extern void __init load_ucode_intel_bsp(void); 62extern void load_ucode_intel_ap(void); 63extern void show_ucode_info_early(void); 64extern int __init save_microcode_in_initrd_intel(void); 65void reload_ucode_intel(void); 66#else 67static inline __init void load_ucode_intel_bsp(void) {} 68static inline void load_ucode_intel_ap(void) {} 69static inline void show_ucode_info_early(void) {} 70static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; } 71static inline void reload_ucode_intel(void) {} 72#endif 73 74#ifdef CONFIG_HOTPLUG_CPU 75extern int save_mc_for_early(u8 *mc); 76#else 77static inline int save_mc_for_early(u8 *mc) { return 0; } 78#endif 79#endif /* _ASM_X86_MICROCODE_INTEL_H */ 80