x86/microcode/amd: Hand down the CPU family

Will be needed in a following patch.

No functionality change.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20161025095522.11964-7-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
index 15eb75484cc078f40406eb9e41eb7054f9cbf012..ad6a7be3b1f8c07e0d426a667fea4f6532304c50 100644 (file)
--- a/arch/x86/include/asm/microcode_amd.h
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -65,13 +65,14 @@ extern enum ucode_state load_microcode_amd(int cpu, u8 family, const u8 *data, s
 
 #ifdef CONFIG_MICROCODE_AMD
 extern void __init load_ucode_amd_bsp(unsigned int family);
-extern void load_ucode_amd_ap(void);
-extern int __init save_microcode_in_initrd_amd(void);
+extern void load_ucode_amd_ap(unsigned int family);
+extern int __init save_microcode_in_initrd_amd(unsigned int family);
 void reload_ucode_amd(void);
 #else
 static inline void __init load_ucode_amd_bsp(unsigned int family) {}
-static inline void load_ucode_amd_ap(void) {}
-static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; }
+static inline void load_ucode_amd_ap(unsigned int family) {}
+static inline int __init
+save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; }
 void reload_ucode_amd(void) {}
 #endif
 

diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 8cb20e3e943637df37099d89f92b50751ca12bc3..bb16418ecaa9f90855e3f6baea28e07d8458489e 100644 (file)
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -308,7 +308,7 @@ void __init load_ucode_amd_bsp(unsigned int family)
  * In save_microcode_in_initrd_amd() BSP's patch is copied to amd_ucode_patch,
  * which is used upon resume from suspend.
  */
-void load_ucode_amd_ap(void)
+void load_ucode_amd_ap(unsigned int family)
 {
        struct microcode_amd *mc;
        size_t *usize;
@@ -346,7 +346,7 @@ static void __init get_bsp_sig(void)
                smp_call_function_single(bsp, collect_cpu_sig_on_bsp, NULL, 1);
 }
 #else
-void load_ucode_amd_ap(void)
+void load_ucode_amd_ap(unsigned int family)
 {
        struct equiv_cpu_entry *eq;
        struct microcode_amd *mc;
@@ -395,7 +395,7 @@ void load_ucode_amd_ap(void)
 }
 #endif
 
-int __init save_microcode_in_initrd_amd(void)
+int __init save_microcode_in_initrd_amd(unsigned int family)
 {
        unsigned long cont;
        int retval = 0;

diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index 55a2b24b2bdd7645656cbad1a92a097f88f14967..b67145dcfdafd60db552bb7f2210acb23da6c04b 100644 (file)
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -169,7 +169,7 @@ void load_ucode_ap(void)
                break;
        case X86_VENDOR_AMD:
                if (family >= 0x10)
-                       load_ucode_amd_ap();
+                       load_ucode_amd_ap(family);
                break;
        default:
                break;
@@ -187,7 +187,7 @@ static int __init save_microcode_in_initrd(void)
                break;
        case X86_VENDOR_AMD:
                if (c->x86 >= 0x10)
-                       return save_microcode_in_initrd_amd();
+                       return save_microcode_in_initrd_amd(c->x86);
                break;
        default:
                break;