microcode.c File Reference

#include <stdint.h>
#include <stddef.h>
#include <cbfs.h>
#include <arch/cpu.h>
#include <console/console.h>
#include <cpu/x86/msr.h>
#include <cpu/intel/microcode.h>
#include <smp/spinlock.h>

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Data Structures
struct	microcode
struct	ext_sig_table
struct	ext_sig_entry

Macros
#define	MICROCODE_CBFS_FILE   "cpu_microcode_blob.bin"

Functions
static u32	read_microcode_rev (void)
void	intel_microcode_load_unlocked (const void *microcode_patch)
uint32_t	get_current_microcode_rev (void)
uint32_t	get_microcode_rev (const void *microcode)
uint32_t	get_microcode_size (const void *microcode)
uint32_t	get_microcode_checksum (const void *microcode)
static struct ext_sig_table *	ucode_get_ext_sig_table (const struct microcode *ucode)
static const void *	find_cbfs_microcode (void)
const void *	intel_microcode_find (void)
void	intel_update_microcode_from_cbfs (void)

Macro Definition Documentation

MICROCODE_CBFS_FILE

#define MICROCODE_CBFS_FILE   "cpu_microcode_blob.bin"

Definition at line 69 of file microcode.c.

Function Documentation

find_cbfs_microcode()

static const void* find_cbfs_microcode ( void  )

static

Definition at line 153 of file microcode.c.

References BIOS_DEBUG, BIOS_SPEW, BIOS_WARNING, c, cbfs_map(), cpuid_eax(), ext_sig_table::ext_sig_cnt, get_fms(), msr_struct::hi, IA32_PLATFORM_ID, MICROCODE_CBFS_FILE, NULL, microcode::pf, ext_sig_entry::pf, printk, rdmsr(), read_microcode_rev(), microcode::sig, ext_sig_entry::sig, microcode::total_size, and ucode_get_ext_sig_table().

Referenced by intel_microcode_find().

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get_current_microcode_rev()

uint32_t get_current_microcode_rev

(

void

)

Definition at line 112 of file microcode.c.

References read_microcode_rev().

Referenced by ap_init(), and report_cpu_info().

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get_microcode_checksum()

uint32_t get_microcode_checksum

(

const void *

microcode

)

Definition at line 127 of file microcode.c.

get_microcode_rev()

uint32_t get_microcode_rev

(

const void *

microcode

)

Definition at line 117 of file microcode.c.

get_microcode_size()

uint32_t get_microcode_size

(

const void *

microcode

)

Definition at line 122 of file microcode.c.

Referenced by fill_fsps_cpu_params().

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intel_microcode_find()

const void* intel_microcode_find

(

void

)

Definition at line 223 of file microcode.c.

References find_cbfs_microcode().

Referenced by coreboot_init_cpus(), cpx_init_cpus(), fill_fsps_cpu_params(), fill_in_pattrs(), get_microcode_info(), intel_update_microcode_from_cbfs(), per_cpu_smm_trigger(), pre_mp_init(), and sgx_configure().

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intel_microcode_load_unlocked()

void intel_microcode_load_unlocked

(

const void *

microcode_patch

)

Definition at line 71 of file microcode.c.

References BIOS_DEBUG, BIOS_INFO, msr_struct::hi, IA32_BIOS_UPDT_TRIG, msr_struct::lo, m, microcode_patch, printk, read_microcode_rev(), soc_skip_ucode_update(), and wrmsr().

Referenced by coreboot_init_cpus(), cpx_init_cpus(), get_microcode_info(), intel_update_microcode_from_cbfs(), per_cpu_smm_trigger(), pre_mp_init(), and sgx_configure().

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intel_update_microcode_from_cbfs()

void intel_update_microcode_from_cbfs

(

void

)

Definition at line 242 of file microcode.c.

References intel_microcode_find(), intel_microcode_load_unlocked(), spin_lock, and spin_unlock.

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read_microcode_rev()

static u32 read_microcode_rev ( void  )

inlinestatic

Definition at line 44 of file microcode.c.

References msr_struct::hi, and msr_struct::lo.

Referenced by find_cbfs_microcode(), get_current_microcode_rev(), and intel_microcode_load_unlocked().

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ucode_get_ext_sig_table()

static struct ext_sig_table* ucode_get_ext_sig_table ( const struct microcode *  ucode )

static

Definition at line 133 of file microcode.c.

References microcode::data_size, ext_sig_table::ext_sig_cnt, NULL, and microcode::total_size.

Referenced by find_cbfs_microcode().

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