1 files changed, 85 insertions, 0 deletions

diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
new file mode 100644
index 000000000000..5356f927d411
--- /dev/null
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -0,0 +1,85 @@
+#ifndef _ASM_X86_MICROCODE_INTEL_H
+#define _ASM_X86_MICROCODE_INTEL_H
+
+#include <asm/microcode.h>
+
+struct microcode_header_intel {
+        unsigned int            hdrver;
+        unsigned int            rev;
+        unsigned int            date;
+        unsigned int            sig;
+        unsigned int            cksum;
+        unsigned int            ldrver;
+        unsigned int            pf;
+        unsigned int            datasize;
+        unsigned int            totalsize;
+        unsigned int            reserved[3];
+};
+
+struct microcode_intel {
+        struct microcode_header_intel hdr;
+        unsigned int            bits[0];
+};
+
+/* microcode format is extended from prescott processors */
+struct extended_signature {
+        unsigned int            sig;
+        unsigned int            pf;
+        unsigned int            cksum;
+};
+
+struct extended_sigtable {
+        unsigned int            count;
+        unsigned int            cksum;
+        unsigned int            reserved[3];
+        struct extended_signature sigs[0];
+};
+
+#define DEFAULT_UCODE_DATASIZE  (2000)
+#define MC_HEADER_SIZE          (sizeof(struct microcode_header_intel))
+#define DEFAULT_UCODE_TOTALSIZE (DEFAULT_UCODE_DATASIZE + MC_HEADER_SIZE)
+#define EXT_HEADER_SIZE         (sizeof(struct extended_sigtable))
+#define EXT_SIGNATURE_SIZE      (sizeof(struct extended_signature))
+#define DWSIZE                  (sizeof(u32))
+
+#define get_totalsize(mc) \
+        (((struct microcode_intel *)mc)->hdr.totalsize ? \
+         ((struct microcode_intel *)mc)->hdr.totalsize : \
+         DEFAULT_UCODE_TOTALSIZE)
+
+#define get_datasize(mc) \
+        (((struct microcode_intel *)mc)->hdr.datasize ? \
+         ((struct microcode_intel *)mc)->hdr.datasize : DEFAULT_UCODE_DATASIZE)
+
+#define sigmatch(s1, s2, p1, p2) \
+        (((s1) == (s2)) && (((p1) & (p2)) || (((p1) == 0) && ((p2) == 0))))
+
+#define exttable_size(et) ((et)->count * EXT_SIGNATURE_SIZE + EXT_HEADER_SIZE)
+
+extern int
+get_matching_microcode(unsigned int csig, int cpf, void *mc, int rev);
+extern int microcode_sanity_check(void *mc, int print_err);
+extern int get_matching_sig(unsigned int csig, int cpf, void *mc, int rev);
+extern int
+update_match_revision(struct microcode_header_intel *mc_header, int rev);
+
+#ifdef CONFIG_MICROCODE_INTEL_EARLY
+extern void __init load_ucode_intel_bsp(void);
+extern void __cpuinit load_ucode_intel_ap(void);
+extern void show_ucode_info_early(void);
+#else
+static inline __init void load_ucode_intel_bsp(void) {}
+static inline __cpuinit void load_ucode_intel_ap(void) {}
+static inline void show_ucode_info_early(void) {}
+#endif
+
+#if defined(CONFIG_MICROCODE_INTEL_EARLY) && defined(CONFIG_HOTPLUG_CPU)
+extern int save_mc_for_early(u8 *mc);
+#else
+static inline int save_mc_for_early(u8 *mc)
+{
+        return 0;
+}
+#endif
+
+#endif /* _ASM_X86_MICROCODE_INTEL_H */