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path: root/arch/x86/kernel/microcode_amd_early.c
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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 1d14ffee574..6073104ccaa 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)
uci->cpu_sig.sig = cpuid_eax(0x00000001);
}
#else
-static void collect_cpu_info_amd_early(struct cpuinfo_x86 *c,
- struct ucode_cpu_info *uci)
+void load_ucode_amd_ap(void)
{
+ unsigned int cpu = smp_processor_id();
+ struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
u32 rev, eax;
rdmsr(MSR_AMD64_PATCH_LEVEL, rev, eax);
eax = cpuid_eax(0x00000001);
- uci->cpu_sig.sig = eax;
uci->cpu_sig.rev = rev;
- c->microcode = rev;
- c->x86 = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
-}
-
-void load_ucode_amd_ap(void)
-{
- unsigned int cpu = smp_processor_id();
-
- collect_cpu_info_amd_early(&cpu_data(cpu), ucode_cpu_info + cpu);
+ uci->cpu_sig.sig = eax;
if (cpu && !ucode_loaded) {
void *ucode;
@@ -265,8 +257,10 @@ void load_ucode_amd_ap(void)
return;
ucode = (void *)(initrd_start + ucode_offset);
- if (load_microcode_amd(0, ucode, ucode_size) != UCODE_OK)
+ eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
+ if (load_microcode_amd(eax, ucode, ucode_size) != UCODE_OK)
return;
+
ucode_loaded = true;
}
@@ -278,6 +272,8 @@ int __init save_microcode_in_initrd_amd(void)
{
enum ucode_state ret;
void *ucode;
+ u32 eax;
+
#ifdef CONFIG_X86_32
unsigned int bsp = boot_cpu_data.cpu_index;
struct ucode_cpu_info *uci = ucode_cpu_info + bsp;
@@ -293,7 +289,10 @@ int __init save_microcode_in_initrd_amd(void)
return 0;
ucode = (void *)(initrd_start + ucode_offset);
- ret = load_microcode_amd(0, ucode, ucode_size);
+ eax = cpuid_eax(0x00000001);
+ eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
+
+ ret = load_microcode_amd(eax, ucode, ucode_size);
if (ret != UCODE_OK)
return -EINVAL;