Commit df23cab5 authored by Andreas Herrmann's avatar Andreas Herrmann Committed by Ingo Molnar
Browse files

x86: microcode_amd: modify log messages

Impact: change microcode printk content

Change log level and provide (at least I tried to;-) consistent, short,
meaningful content.
Signed-off-by: default avatarAndreas Herrmann <>
Cc: Dmitry Adamushko <>
Signed-off-by: default avatarIngo Molnar <>
parent 5549b94b
......@@ -91,18 +91,13 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
u32 dummy;
memset(csig, 0, sizeof(*csig));
if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
printk(KERN_ERR "microcode: CPU%d not a capable AMD processor\n",
printk(KERN_WARNING "microcode: CPU%d: AMD CPU family 0x%x not "
"supported\n", cpu, c->x86);
return -1;
rdmsr(MSR_AMD64_PATCH_LEVEL, csig->rev, dummy);
printk(KERN_INFO "microcode: collect_cpu_info_amd : patch_id=0x%x\n",
printk(KERN_INFO "microcode: CPU%d: patch_level=0x%x\n", cpu, csig->rev);
return 0;
......@@ -125,21 +120,21 @@ static int get_matching_microcode(int cpu, void *mc, int rev)
if (!equiv_cpu_id) {
printk(KERN_ERR "microcode: CPU%d cpu_id "
"not found in equivalent cpu table\n", cpu);
printk(KERN_WARNING "microcode: CPU%d: cpu revision "
"not listed in equivalent cpu table\n", cpu);
return 0;
if (mc_header->processor_rev_id != equiv_cpu_id) {
printk(KERN_ERR "microcode: CPU%d patch does not match "
"(processor_rev_id: %x, eqiv_cpu_id: %x)\n",
printk(KERN_ERR "microcode: CPU%d: patch mismatch "
"(processor_rev_id: %x, equiv_cpu_id: %x)\n",
cpu, mc_header->processor_rev_id, equiv_cpu_id);
return 0;
/* ucode might be chipset specific -- currently we don't support this */
if (mc_header->nb_dev_id || mc_header->sb_dev_id) {
printk(KERN_WARNING "microcode: CPU%d loading of chipset "
printk(KERN_ERR "microcode: CPU%d: loading of chipset "
"specific code not yet supported\n", cpu);
return 0;
......@@ -172,15 +167,13 @@ static void apply_microcode_amd(int cpu)
/* check current patch id and patch's id for match */
if (rev != mc_amd->hdr.patch_id) {
printk(KERN_ERR "microcode: CPU%d update from revision "
"0x%x to 0x%x failed\n", cpu_num,
mc_amd->hdr.patch_id, rev);
printk(KERN_ERR "microcode: CPU%d: update failed "
"(for patch_level=0x%x)\n", cpu, mc_amd->hdr.patch_id);
printk(KERN_INFO "microcode: CPU%d updated from revision "
"0x%x to 0x%x\n",
cpu_num, uci->cpu_sig.rev, mc_amd->hdr.patch_id);
printk(KERN_INFO "microcode: CPU%d: updated (new patch_level=0x%x)\n",
cpu, rev);
uci->cpu_sig.rev = rev;
......@@ -202,18 +195,18 @@ static void *get_next_ucode(const u8 *buf, unsigned int size,
return NULL;
if (section_hdr[0] != UCODE_UCODE_TYPE) {
printk(KERN_ERR "microcode: error! "
"Wrong microcode payload type field\n");
printk(KERN_ERR "microcode: error: invalid type field in "
"container file section header\n");
return NULL;
total_size = (unsigned long) (section_hdr[4] + (section_hdr[5] << 8));
printk(KERN_INFO "microcode: size %u, total_size %u\n",
size, total_size);
printk(KERN_DEBUG "microcode: size %u, total_size %u\n",
size, total_size);
if (total_size > size || total_size > UCODE_MAX_SIZE) {
printk(KERN_ERR "microcode: error! Bad data in microcode data file\n");
printk(KERN_ERR "microcode: error: size mismatch\n");
return NULL;
......@@ -243,14 +236,15 @@ static int install_equiv_cpu_table(const u8 *buf)
size = buf_pos[2];
if (buf_pos[1] != UCODE_EQUIV_CPU_TABLE_TYPE || !size) {
printk(KERN_ERR "microcode: error! "
"Wrong microcode equivalent cpu table\n");
printk(KERN_ERR "microcode: error: invalid type field in "
"container file section header\n");
return 0;
equiv_cpu_table = (struct equiv_cpu_entry *) vmalloc(size);
if (!equiv_cpu_table) {
printk(KERN_ERR "microcode: error, can't allocate memory for equiv CPU table\n");
printk(KERN_ERR "microcode: failed to allocate "
"equivalent CPU table\n");
return 0;
......@@ -283,7 +277,8 @@ static int generic_load_microcode(int cpu, const u8 *data, size_t size)
offset = install_equiv_cpu_table(ucode_ptr);
if (!offset) {
printk(KERN_ERR "microcode: installing equivalent cpu table failed\n");
printk(KERN_ERR "microcode: failed to create "
"equivalent cpu table\n");
return -EINVAL;
......@@ -339,8 +334,7 @@ static int request_microcode_fw(int cpu, struct device *device)
ret = request_firmware(&firmware, fw_name, device);
if (ret) {
printk(KERN_ERR "microcode: ucode data file %s load failed\n",
printk(KERN_ERR "microcode: failed to load file %s\n", fw_name);
return ret;
......@@ -353,8 +347,8 @@ static int request_microcode_fw(int cpu, struct device *device)
static int request_microcode_user(int cpu, const void __user *buf, size_t size)
printk(KERN_WARNING "microcode: AMD microcode update via "
"/dev/cpu/microcode is not supported\n");
printk(KERN_INFO "microcode: AMD microcode update via "
"/dev/cpu/microcode not supported\n");
return -1;
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