Commit-ID: e6ebf5deaaaa33b661f0db86380c232b162bd68c
Gitweb: http://git.kernel.org/tip/e6ebf5deaaaa33b661f0db86380c232b162bd68c
Author: Fenghua Yu <fenghua.yu@xxxxxxxxx>
AuthorDate: Thu, 20 Dec 2012 23:44:24 -0800
Committer: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Thu, 31 Jan 2013 13:19:06 -0800
x86/common.c: load ucode in 64 bit or show loading ucode info in 32 bit on AP
In 64 bit, load ucode on AP in cpu_init().
In 32 bit, show ucode loading info on AP in cpu_init(). Microcode has been
loaded earlier before paging. Now it is safe to show the loading microcode
info on this AP.
Signed-off-by: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1356075872-3054-5-git-send-email-fenghua.yu@xxxxxxxxx
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/common.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index d7fd246..d814772 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1220,6 +1220,12 @@ void __cpuinit cpu_init(void)
int cpu;
int i;
+ /*
+ * Load microcode on this cpu if a valid microcode is available.
+ * This is early microcode loading procedure.
+ */
+ load_ucode_ap();
+
cpu = stack_smp_processor_id();
t = &per_cpu(init_tss, cpu);
oist = &per_cpu(orig_ist, cpu);
@@ -1311,6 +1317,8 @@ void __cpuinit cpu_init(void)
struct tss_struct *t = &per_cpu(init_tss, cpu);
struct thread_struct *thread = &curr->thread;
+ show_ucode_info_early();
+
if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) {
printk(KERN_WARNING "CPU#%d already initialized!\n", cpu);
for (;;)
--
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