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linux_kernel
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arch
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x86
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include
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asm
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microcode_amd.h

microcode_amd.h 1.4 KB
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  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. #ifndef _ASM_X86_MICROCODE_AMD_H
    3. 

  3. #define _ASM_X86_MICROCODE_AMD_H
    4. 

  4. 

  5. #include <asm/microcode.h>
    6. 

  6. 

  7. #define UCODE_MAGIC			0x00414d44
    8. 

  8. #define UCODE_EQUIV_CPU_TABLE_TYPE	0x00000000
    9. 

  9. #define UCODE_UCODE_TYPE		0x00000001
    10. 

  10. 

  11. #define SECTION_HDR_SIZE		8
    12. 

  12. #define CONTAINER_HDR_SZ		12
    13. 

  13. 

  14. struct equiv_cpu_entry {
    15. 

  15. 	u32	installed_cpu;
    16. 

  16. 	u32	fixed_errata_mask;
    17. 

  17. 	u32	fixed_errata_compare;
    18. 

  18. 	u16	equiv_cpu;
    19. 

  19. 	u16	res;
    20. 

  20. } __attribute__((packed));
    21. 

  21. 

  22. struct microcode_header_amd {
    23. 

  23. 	u32	data_code;
    24. 

  24. 	u32	patch_id;
    25. 

  25. 	u16	mc_patch_data_id;
    26. 

  26. 	u8	mc_patch_data_len;
    27. 

  27. 	u8	init_flag;
    28. 

  28. 	u32	mc_patch_data_checksum;
    29. 

  29. 	u32	nb_dev_id;
    30. 

  30. 	u32	sb_dev_id;
    31. 

  31. 	u16	processor_rev_id;
    32. 

  32. 	u8	nb_rev_id;
    33. 

  33. 	u8	sb_rev_id;
    34. 

  34. 	u8	bios_api_rev;
    35. 

  35. 	u8	reserved1[3];
    36. 

  36. 	u32	match_reg[8];
    37. 

  37. } __attribute__((packed));
    38. 

  38. 

  39. struct microcode_amd {
    40. 

  40. 	struct microcode_header_amd	hdr;
    41. 

  41. 	unsigned int			mpb[0];
    42. 

  42. };
    43. 

  43. 

  44. #define PATCH_MAX_SIZE PAGE_SIZE
    45. 

  45. 

  46. #ifdef CONFIG_MICROCODE_AMD
    47. 

  47. extern void __init load_ucode_amd_bsp(unsigned int family);
    48. 

  48. extern void load_ucode_amd_ap(unsigned int family);
    49. 

  49. extern int __init save_microcode_in_initrd_amd(unsigned int family);
    50. 

  50. void reload_ucode_amd(void);
    51. 

  51. #else
    52. 

  52. static inline void __init load_ucode_amd_bsp(unsigned int family) {}
    53. 

  53. static inline void load_ucode_amd_ap(unsigned int family) {}
    54. 

  54. static inline int __init
    55. 

  55. save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; }
    56. 

  56. void reload_ucode_amd(void) {}
    57. 

  57. #endif
    58. 

  58. #endif /* _ASM_X86_MICROCODE_AMD_H */
    59.