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authorKyösti Mälkki <kyosti.malkki@gmail.com>2019-11-21 07:21:26 +0200
committerKyösti Mälkki <kyosti.malkki@gmail.com>2019-11-22 06:23:43 +0000
commit3382e53c64e7aef81cba23bb66bb1c615613faba (patch)
treeef74fe28a5af923fcb8526918c128b6338a5707d /src/cpu
parentbd585fa89f9d0abf9c15e1495b1b3b925504456d (diff)
downloadcoreboot-3382e53c64e7aef81cba23bb66bb1c615613faba.tar.xz
cpu/amd/microcode: Remove microcode update routine
This was only used with native amdfam10h-15h. Change-Id: Id8e06b25c6ec716c07aee46fce10903c62b6d684 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37073 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/amd/microcode/microcode.c225
1 files changed, 0 insertions, 225 deletions
diff --git a/src/cpu/amd/microcode/microcode.c b/src/cpu/amd/microcode/microcode.c
deleted file mode 100644
index 06939b0524..0000000000
--- a/src/cpu/amd/microcode/microcode.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <stdint.h>
-#include <console/console.h>
-#include <cpu/x86/msr.h>
-#include <cpu/amd/msr.h>
-#include <cpu/amd/microcode.h>
-#include <cbfs.h>
-#include <device/mmio.h>
-#include <smp/spinlock.h>
-
-#define UCODE_DEBUG(fmt, args...) \
- do { printk(BIOS_DEBUG, "[microcode] "fmt, ##args); } while (0)
-
-#define UCODE_MAGIC 0x00414d44
-#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
-#define UCODE_SECTION_START_ID 0x00000001
-#define UCODE_MAGIC 0x00414d44
-
-#define F1XH_MPB_MAX_SIZE 2048
-#define F15H_MPB_MAX_SIZE 4096
-#define CONT_HDR 12
-#define SECT_HDR 8
-
-/*
- * STRUCTURE OF A MICROCODE (UCODE) FILE
- * Container Header
- * Section Header
- * Microcode Header
- * Microcode "Blob"
- * Section Header
- * Microcode Header
- * Microcode "Blob"
- * ...
- * ...
- * (end of file)
- *
- *
- * CONTAINER HEADER (offset 0 bytes from start of file)
- * Total size = fixed size (12 bytes) + variable size
- * [0:3] 32-bit unique ID
- * [4:7] don't-care
- * [8-11] Size (n) in bytes of variable portion of container header
- * [12-n] don't-care
- *
- * SECTION HEADER (offset += 12+n)
- * Total size = 8 bytes
- * [0:3] Unique identifier signaling start of section (0x00000001)
- * [4:7] Total size (m) of following microcode section, including microcode header
- *
- * MICROCODE HEADER (offset += 8)
- * Total size = 64 bytes
- * [0:3] Data code (32 bits)
- * [4:7] Patch ID (32 bits)
- * [8:9] Microcode patch data ID (16 bits)
- * [10] c patch data length (8 bits)
- * [11] init flag (8 bits)
- * [12:15] ucode patch data cksum (32 bits)
- * [16:19] nb dev ID (32 bits)
- * [20:23] sb dev ID (32 bits)
- * [24:25] Processor rev ID (16 bits)
- * [26] nb revision ID (8 bits)
- * [27] sb revision ID (8 bits)
- * [28] BIOS API revision (8 bits)
- * [29-31] Reserved 1 (array of three 8-bit values)
- * [32-63] Match reg (array of eight 32-bit values)
- *
- * MICROCODE BLOB (offset += 64)
- * Total size = m bytes
- *
- */
-
-struct microcode {
- uint32_t data_code;
- uint32_t patch_id;
-
- uint16_t mc_patch_data_id;
- uint8_t mc_patch_data_len;
- uint8_t init_flag;
-
- uint32_t mc_patch_data_checksum;
-
- uint32_t nb_dev_id;
- uint32_t sb_dev_id;
-
- uint16_t processor_rev_id;
- uint8_t nb_rev_id;
- uint8_t sb_rev_id;
-
- uint8_t bios_api_rev;
- uint8_t reserved1[3];
-
- uint32_t match_reg[8];
-
- uint8_t m_patch_data[896];
- uint8_t resv2[896];
-
- uint8_t x86_code_present;
- uint8_t x86_code_entry[191];
-};
-
-static void apply_microcode_patch(const struct microcode *m)
-{
- uint32_t new_patch_id;
- msr_t msr;
-
- /* apply patch */
- msr.hi = 0;
- msr.lo = (uint32_t)m;
-
- wrmsr(MSR_PATCH_LOADER, msr);
-
- UCODE_DEBUG("patch id to apply = 0x%08x\n", m->patch_id);
-
- /* read the patch_id again */
- msr = rdmsr(IA32_BIOS_SIGN_ID);
- new_patch_id = msr.lo;
-
- UCODE_DEBUG("updated to patch id = 0x%08x %s\n", new_patch_id,
- (new_patch_id == m->patch_id) ? "success" : "fail");
-}
-
-static void amd_update_microcode(const void *ucode, size_t ucode_len,
- uint32_t equivalent_processor_rev_id)
-{
- const struct microcode *m;
- const uint8_t *c = ucode;
- const uint8_t *ucode_end = (uint8_t*)ucode + ucode_len;
- const uint8_t *cur_section_hdr;
-
- uint32_t container_hdr_id;
- uint32_t container_hdr_size;
- uint32_t blob_size;
- uint32_t sec_hdr_id;
-
- /* Container Header */
- container_hdr_id = read32(c);
- if (container_hdr_id != UCODE_MAGIC) {
- UCODE_DEBUG("Invalid container header ID\n");
- return;
- }
-
- container_hdr_size = read32(c + 8);
- cur_section_hdr = c + CONT_HDR + container_hdr_size;
-
- /* Read in first section header ID */
- sec_hdr_id = read32(cur_section_hdr);
- c = cur_section_hdr + 4;
-
- /* Loop through sections */
- while (sec_hdr_id == UCODE_SECTION_START_ID &&
- c <= (ucode_end - F15H_MPB_MAX_SIZE)) {
-
- blob_size = read32(c);
-
- m = (struct microcode *)(c + 4);
-
- if (m->processor_rev_id == equivalent_processor_rev_id) {
- apply_microcode_patch(m);
- break;
- }
-
- cur_section_hdr = c + 4 + blob_size;
- sec_hdr_id = read32(cur_section_hdr);
- c = cur_section_hdr + 4;
- }
-}
-
-static const char *microcode_cbfs_file[] = {
- "microcode_amd.bin",
- "microcode_amd_fam15h.bin",
-};
-
-void amd_update_microcode_from_cbfs(uint32_t equivalent_processor_rev_id)
-{
- const void *ucode;
- size_t ucode_len;
-
- uint32_t i;
-
- for (i = 0; i < ARRAY_SIZE(microcode_cbfs_file); i++)
- {
- if (equivalent_processor_rev_id == 0) {
- UCODE_DEBUG("rev id not found. Skipping microcode patch!\n");
- return;
- }
-
-#ifdef __PRE_RAM__
-#if CONFIG(HAVE_ROMSTAGE_MICROCODE_CBFS_SPINLOCK)
- spin_lock(romstage_microcode_cbfs_lock());
-#endif
-#endif
-
- ucode = cbfs_boot_map_with_leak(microcode_cbfs_file[i],
- CBFS_TYPE_MICROCODE, &ucode_len);
- if (!ucode) {
- UCODE_DEBUG("microcode file not found. Skipping updates.\n");
-#ifdef __PRE_RAM__
-#if CONFIG(HAVE_ROMSTAGE_MICROCODE_CBFS_SPINLOCK)
- spin_unlock(romstage_microcode_cbfs_lock());
-#endif
-#endif
- return;
- }
-
- amd_update_microcode(ucode, ucode_len, equivalent_processor_rev_id);
-
-#ifdef __PRE_RAM__
-#if CONFIG(HAVE_ROMSTAGE_MICROCODE_CBFS_SPINLOCK)
- spin_unlock(romstage_microcode_cbfs_lock());
-#endif
-#endif
- }
-}