This source file includes following definitions.
- intel_get_microcode_revision
- load_ucode_intel_bsp
- load_ucode_intel_ap
- show_ucode_info_early
- save_microcode_in_initrd_intel
- reload_ucode_intel
1
2 #ifndef _ASM_X86_MICROCODE_INTEL_H
3 #define _ASM_X86_MICROCODE_INTEL_H
4
5 #include <asm/microcode.h>
6
7 struct microcode_header_intel {
8 unsigned int hdrver;
9 unsigned int rev;
10 unsigned int date;
11 unsigned int sig;
12 unsigned int cksum;
13 unsigned int ldrver;
14 unsigned int pf;
15 unsigned int datasize;
16 unsigned int totalsize;
17 unsigned int reserved[3];
18 };
19
20 struct microcode_intel {
21 struct microcode_header_intel hdr;
22 unsigned int bits[0];
23 };
24
25
26 struct extended_signature {
27 unsigned int sig;
28 unsigned int pf;
29 unsigned int cksum;
30 };
31
32 struct extended_sigtable {
33 unsigned int count;
34 unsigned int cksum;
35 unsigned int reserved[3];
36 struct extended_signature sigs[0];
37 };
38
39 #define DEFAULT_UCODE_DATASIZE (2000)
40 #define MC_HEADER_SIZE (sizeof(struct microcode_header_intel))
41 #define DEFAULT_UCODE_TOTALSIZE (DEFAULT_UCODE_DATASIZE + MC_HEADER_SIZE)
42 #define EXT_HEADER_SIZE (sizeof(struct extended_sigtable))
43 #define EXT_SIGNATURE_SIZE (sizeof(struct extended_signature))
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 static inline u32 intel_get_microcode_revision(void)
57 {
58 u32 rev, dummy;
59
60 native_wrmsrl(MSR_IA32_UCODE_REV, 0);
61
62
63 native_cpuid_eax(1);
64
65
66 native_rdmsr(MSR_IA32_UCODE_REV, dummy, rev);
67
68 return rev;
69 }
70
71 #ifdef CONFIG_MICROCODE_INTEL
72 extern void __init load_ucode_intel_bsp(void);
73 extern void load_ucode_intel_ap(void);
74 extern void show_ucode_info_early(void);
75 extern int __init save_microcode_in_initrd_intel(void);
76 void reload_ucode_intel(void);
77 #else
78 static inline __init void load_ucode_intel_bsp(void) {}
79 static inline void load_ucode_intel_ap(void) {}
80 static inline void show_ucode_info_early(void) {}
81 static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; }
82 static inline void reload_ucode_intel(void) {}
83 #endif
84
85 #endif