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#ifndef _ASM_X86_MICROCODE_H
#define _ASM_X86_MICROCODE_H
struct cpu_signature {
unsigned int sig;
unsigned int pf;
unsigned int rev;
};
struct device;
enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND };
struct microcode_ops {
enum ucode_state (*request_microcode_user) (int cpu,
const void __user *buf, size_t size);
enum ucode_state (*request_microcode_fw) (int cpu,
struct device *device);
void (*microcode_fini_cpu) (int cpu);
/*
* The generic 'microcode_core' part guarantees that
* the callbacks below run on a target cpu when they
* are being called.
* See also the "Synchronization" section in microcode_core.c.
*/
int (*apply_microcode) (int cpu);
int (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
};
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);
static inline void get_ucode_data(void *to, const u8 *from, size_t n)
{
memcpy(to, from, n);
}
#else
static inline struct microcode_ops * __init init_amd_microcode(void)
{
return NULL;
}
#endif
#ifdef CONFIG_MICROCODE_XEN
extern struct microcode_ops * __init init_xen_microcode(void);
#else
static inline struct microcode_ops * __init init_xen_microcode(void)
{
return NULL;
}
#endif
#endif /* _ASM_X86_MICROCODE_H */
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