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Subject[tip:x86/microcode] x86, microcode: Vendor abstract out save_microcode_in_initrd()
Commit-ID:  f2b3ee820a9f2368d7f8842ad7da062dfe86e199
Gitweb: http://git.kernel.org/tip/f2b3ee820a9f2368d7f8842ad7da062dfe86e199
Author: Jacob Shin <jacob.shin@amd.com>
AuthorDate: Thu, 30 May 2013 14:09:17 -0500
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Thu, 30 May 2013 20:19:25 -0700

x86, microcode: Vendor abstract out save_microcode_in_initrd()

Currently save_microcode_in_initrd() is declared in vendor neutural
microcode.h file, but defined in vendor specific
microcode_intel_early.c file. Vendor abstract it out to
microcode_core_early.c with a wrapper function.

Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Link: http://lkml.kernel.org/r/1369940959-2077-3-git-send-email-jacob.shin@amd.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
---
arch/x86/include/asm/microcode_intel.h | 2 ++
arch/x86/kernel/microcode_core_early.c | 10 ++++++++++
arch/x86/kernel/microcode_intel_early.c | 2 +-
3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
index 5356f92..87a0853 100644
--- a/arch/x86/include/asm/microcode_intel.h
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -67,10 +67,12 @@ update_match_revision(struct microcode_header_intel *mc_header, int rev);
extern void __init load_ucode_intel_bsp(void);
extern void __cpuinit load_ucode_intel_ap(void);
extern void show_ucode_info_early(void);
+extern int __init save_microcode_in_initrd_intel(void);
#else
static inline __init void load_ucode_intel_bsp(void) {}
static inline __cpuinit void load_ucode_intel_ap(void) {}
static inline void show_ucode_info_early(void) {}
+static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; }
#endif

#if defined(CONFIG_MICROCODE_INTEL_EARLY) && defined(CONFIG_HOTPLUG_CPU)
diff --git a/arch/x86/kernel/microcode_core_early.c b/arch/x86/kernel/microcode_core_early.c
index 833d51d..0d19ac5 100644
--- a/arch/x86/kernel/microcode_core_early.c
+++ b/arch/x86/kernel/microcode_core_early.c
@@ -98,3 +98,13 @@ void __cpuinit load_ucode_ap(void)
if (vendor == X86_VENDOR_INTEL && x86 >= 6)
load_ucode_intel_ap();
}
+
+int __init save_microcode_in_initrd(void)
+{
+ struct cpuinfo_x86 *c = &boot_cpu_data;
+
+ if (c->x86_vendor == X86_VENDOR_INTEL && c->x86 >= 6)
+ return save_microcode_in_initrd_intel();
+
+ return 0;
+}
diff --git a/arch/x86/kernel/microcode_intel_early.c b/arch/x86/kernel/microcode_intel_early.c
index a07f0a0..dabef95 100644
--- a/arch/x86/kernel/microcode_intel_early.c
+++ b/arch/x86/kernel/microcode_intel_early.c
@@ -699,7 +699,7 @@ static int __cpuinit apply_microcode_early(struct mc_saved_data *mc_saved_data,
* This function converts microcode patch offsets previously stored in
* mc_saved_in_initrd to pointers and stores the pointers in mc_saved_data.
*/
-int __init save_microcode_in_initrd(void)
+int __init save_microcode_in_initrd_intel(void)
{
unsigned int count = mc_saved_data.mc_saved_count;
struct microcode_intel *mc_saved[MAX_UCODE_COUNT];

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