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58 lines
1.4 KiB
58 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_X86_MICROCODE_AMD_H |
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#define _ASM_X86_MICROCODE_AMD_H |
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#include <asm/microcode.h> |
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#define UCODE_MAGIC 0x00414d44 |
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#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000 |
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#define UCODE_UCODE_TYPE 0x00000001 |
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#define SECTION_HDR_SIZE 8 |
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#define CONTAINER_HDR_SZ 12 |
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struct equiv_cpu_entry { |
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u32 installed_cpu; |
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u32 fixed_errata_mask; |
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u32 fixed_errata_compare; |
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u16 equiv_cpu; |
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u16 res; |
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} __attribute__((packed)); |
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struct microcode_header_amd { |
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u32 data_code; |
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u32 patch_id; |
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u16 mc_patch_data_id; |
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u8 mc_patch_data_len; |
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u8 init_flag; |
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u32 mc_patch_data_checksum; |
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u32 nb_dev_id; |
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u32 sb_dev_id; |
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u16 processor_rev_id; |
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u8 nb_rev_id; |
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u8 sb_rev_id; |
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u8 bios_api_rev; |
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u8 reserved1[3]; |
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u32 match_reg[8]; |
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} __attribute__((packed)); |
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struct microcode_amd { |
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struct microcode_header_amd hdr; |
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unsigned int mpb[0]; |
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}; |
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#define PATCH_MAX_SIZE (3 * PAGE_SIZE) |
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#ifdef CONFIG_MICROCODE_AMD |
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extern void __init load_ucode_amd_bsp(unsigned int family); |
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extern void load_ucode_amd_ap(unsigned int family); |
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extern int __init save_microcode_in_initrd_amd(unsigned int family); |
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void reload_ucode_amd(void); |
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#else |
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static inline void __init load_ucode_amd_bsp(unsigned int family) {} |
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static inline void load_ucode_amd_ap(unsigned int family) {} |
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static inline int __init |
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save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; } |
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static inline void reload_ucode_amd(void) {} |
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#endif |
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#endif /* _ASM_X86_MICROCODE_AMD_H */
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