update_microcode.c File Reference

#include <arch/cpu.h>
#include <stdint.h>
#include <cpu/amd/microcode.h>
#include <commonlib/helpers.h>
#include <console/console.h>
#include <cpu/x86/msr.h>
#include <cpu/amd/msr.h>
#include <cbfs.h>
#include <timestamp.h>

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Data Structures
struct	microcode

Macros
#define	CPU_MICROCODE_BLOB_NAME   "cpu_microcode_blob.bin"
#define	MPB_MAX_SIZE   CONFIG_SOC_AMD_COMMON_BLOCK_UCODE_SIZE
#define	MPB_DATA_OFFSET   32

Functions
	_Static_assert (CONFIG_SOC_AMD_COMMON_BLOCK_UCODE_SIZE > 0, "SOC_AMD_COMMON_BLOCK_UCODE_SIZE is not set")
	_Static_assert (sizeof(struct microcode)==MPB_MAX_SIZE, "microcode size is invalid")
static void	apply_microcode_patch (const struct microcode *m)
static uint16_t	get_equivalent_processor_rev_id (void)
static const struct microcode *	find_microcode (const struct microcode *ucode, size_t ucode_len)
void	amd_update_microcode_from_cbfs (void)
void	preload_microcode (void)

Variables
struct microcode	__packed

Macro Definition Documentation

CPU_MICROCODE_BLOB_NAME

#define CPU_MICROCODE_BLOB_NAME   "cpu_microcode_blob.bin"

Definition at line 13 of file update_microcode.c.

MPB_DATA_OFFSET

#define MPB_DATA_OFFSET   32

Definition at line 19 of file update_microcode.c.

MPB_MAX_SIZE

#define MPB_MAX_SIZE   CONFIG_SOC_AMD_COMMON_BLOCK_UCODE_SIZE

Definition at line 18 of file update_microcode.c.

Function Documentation

_Static_assert() [1/2]

_Static_assert	(	CONFIG_SOC_AMD_COMMON_BLOCK_UCODE_SIZE	,
		0	,
		"SOC_AMD_COMMON_BLOCK_UCODE_SIZE is not set"
	)

_Static_assert() [2/2]

_Static_assert	(	sizeof(struct microcode)	= =MPB_MAX_SIZE,
		"microcode size is invalid"
	)

amd_update_microcode_from_cbfs()

void amd_update_microcode_from_cbfs

(

void

)

Definition at line 90 of file update_microcode.c.

References apply_microcode_patch(), BIOS_WARNING, cbfs_map(), cbfs_unmap(), CPU_MICROCODE_BLOB_NAME, find_microcode(), printk, timestamp_add_now(), TS_READ_UCODE_END, and TS_READ_UCODE_START.

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apply_microcode_patch()

static void apply_microcode_patch ( const struct microcode *  m )

static

Definition at line 43 of file update_microcode.c.

References BIOS_DEBUG, BIOS_ERR, BIOS_INFO, msr_struct::hi, IA32_BIOS_SIGN_ID, msr_struct::lo, m, MSR_PATCH_LOADER, printk, rdmsr(), and wrmsr().

Referenced by amd_update_microcode_from_cbfs().

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find_microcode()

static const struct microcode* find_microcode ( const struct microcode *  ucode, size_t  ucode_len  )

static

Definition at line 74 of file update_microcode.c.

References BIOS_WARNING, get_equivalent_processor_rev_id(), m, MPB_MAX_SIZE, NULL, and printk.

Referenced by amd_update_microcode_from_cbfs().

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get_equivalent_processor_rev_id()

static uint16_t get_equivalent_processor_rev_id ( void  )

static

Definition at line 67 of file update_microcode.c.

References cpuid_eax().

Referenced by find_microcode().

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preload_microcode()

void preload_microcode

(

void

)

Definition at line 127 of file update_microcode.c.

References BIOS_DEBUG, cbfs_preload(), CONFIG, CPU_MICROCODE_BLOB_NAME, and printk.

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Variable Documentation

__packed

struct microcode __packed