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Diffstat (limited to 'arch/x86/kernel/microcode_amd_early.c')
-rw-r--r--arch/x86/kernel/microcode_amd_early.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/x86/kernel/microcode_amd_early.c b/arch/x86/kernel/microcode_amd_early.c
index 1d14ffee5749..6073104ccaa3 100644
--- a/arch/x86/kernel/microcode_amd_early.c
+++ b/arch/x86/kernel/microcode_amd_early.c
@@ -238,25 +238,17 @@ static void __init collect_cpu_sig_on_bsp(void *arg)
238 uci->cpu_sig.sig = cpuid_eax(0x00000001); 238 uci->cpu_sig.sig = cpuid_eax(0x00000001);
239} 239}
240#else 240#else
241static void collect_cpu_info_amd_early(struct cpuinfo_x86 *c, 241void load_ucode_amd_ap(void)
242 struct ucode_cpu_info *uci)
243{ 242{
243 unsigned int cpu = smp_processor_id();
244 struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
244 u32 rev, eax; 245 u32 rev, eax;
245 246
246 rdmsr(MSR_AMD64_PATCH_LEVEL, rev, eax); 247 rdmsr(MSR_AMD64_PATCH_LEVEL, rev, eax);
247 eax = cpuid_eax(0x00000001); 248 eax = cpuid_eax(0x00000001);
248 249
249 uci->cpu_sig.sig = eax;
250 uci->cpu_sig.rev = rev; 250 uci->cpu_sig.rev = rev;
251 c->microcode = rev; 251 uci->cpu_sig.sig = eax;
252 c->x86 = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
253}
254
255void load_ucode_amd_ap(void)
256{
257 unsigned int cpu = smp_processor_id();
258
259 collect_cpu_info_amd_early(&cpu_data(cpu), ucode_cpu_info + cpu);
260 252
261 if (cpu && !ucode_loaded) { 253 if (cpu && !ucode_loaded) {
262 void *ucode; 254 void *ucode;
@@ -265,8 +257,10 @@ void load_ucode_amd_ap(void)
265 return; 257 return;
266 258
267 ucode = (void *)(initrd_start + ucode_offset); 259 ucode = (void *)(initrd_start + ucode_offset);
268 if (load_microcode_amd(0, ucode, ucode_size) != UCODE_OK) 260 eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
261 if (load_microcode_amd(eax, ucode, ucode_size) != UCODE_OK)
269 return; 262 return;
263
270 ucode_loaded = true; 264 ucode_loaded = true;
271 } 265 }
272 266
@@ -278,6 +272,8 @@ int __init save_microcode_in_initrd_amd(void)
278{ 272{
279 enum ucode_state ret; 273 enum ucode_state ret;
280 void *ucode; 274 void *ucode;
275 u32 eax;
276
281#ifdef CONFIG_X86_32 277#ifdef CONFIG_X86_32
282 unsigned int bsp = boot_cpu_data.cpu_index; 278 unsigned int bsp = boot_cpu_data.cpu_index;
283 struct ucode_cpu_info *uci = ucode_cpu_info + bsp; 279 struct ucode_cpu_info *uci = ucode_cpu_info + bsp;
@@ -293,7 +289,10 @@ int __init save_microcode_in_initrd_amd(void)
293 return 0; 289 return 0;
294 290
295 ucode = (void *)(initrd_start + ucode_offset); 291 ucode = (void *)(initrd_start + ucode_offset);
296 ret = load_microcode_amd(0, ucode, ucode_size); 292 eax = cpuid_eax(0x00000001);
293 eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
294
295 ret = load_microcode_amd(eax, ucode, ucode_size);
297 if (ret != UCODE_OK) 296 if (ret != UCODE_OK)
298 return -EINVAL; 297 return -EINVAL;
299 298