1 files changed, 47 insertions, 0 deletions

diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
new file mode 100644
index 000000000000..62c793bb70ca
--- /dev/null
+++ b/arch/x86/include/asm/microcode.h
@@ -0,0 +1,47 @@
+#ifndef ASM_X86__MICROCODE_H
+#define ASM_X86__MICROCODE_H
+
+struct cpu_signature {
+        unsigned int sig;
+        unsigned int pf;
+        unsigned int rev;
+};
+
+struct device;
+
+struct microcode_ops {
+        int  (*request_microcode_user) (int cpu, const void __user *buf, size_t size);
+        int  (*request_microcode_fw) (int cpu, struct device *device);
+
+        void (*apply_microcode) (int cpu);
+
+        int  (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
+        void (*microcode_fini_cpu) (int cpu);
+};
+
+struct ucode_cpu_info {
+        struct cpu_signature cpu_sig;
+        int valid;
+        void *mc;
+};
+extern struct ucode_cpu_info ucode_cpu_info[];
+
+#ifdef CONFIG_MICROCODE_INTEL
+extern struct microcode_ops * __init init_intel_microcode(void);
+#else
+static inline struct microcode_ops * __init init_intel_microcode(void)
+{
+        return NULL;
+}
+#endif /* CONFIG_MICROCODE_INTEL */
+
+#ifdef CONFIG_MICROCODE_AMD
+extern struct microcode_ops * __init init_amd_microcode(void);
+#else
+static inline struct microcode_ops * __init init_amd_microcode(void)
+{
+        return NULL;
+}
+#endif
+
+#endif /* ASM_X86__MICROCODE_H */