lkml.org 
[lkml]   [2011]   [Aug]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:x86/cpu] x86: Add a BSP cpu_dev helper
Commit-ID:  a110b5ec7371592eac856ac5c22dc7b518952d44
Gitweb: http://git.kernel.org/tip/a110b5ec7371592eac856ac5c22dc7b518952d44
Author: Borislav Petkov <bp@amd64.org>
AuthorDate: Fri, 5 Aug 2011 20:01:16 +0200
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Fri, 5 Aug 2011 12:26:49 -0700

x86: Add a BSP cpu_dev helper

Add a function ptr to struct cpu_dev which is destined to be run only
once on the BSP during boot.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/20110805180116.GB26217@aftab
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
arch/x86/kernel/cpu/common.c | 3 +++
arch/x86/kernel/cpu/cpu.h | 1 +
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 22a073d..8ed394a 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -681,6 +681,9 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
filter_cpuid_features(c, false);

setup_smep(c);
+
+ if (this_cpu->c_bsp_init)
+ this_cpu->c_bsp_init(c);
}

void __init early_cpu_init(void)
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index e765633..1b22dcc 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -18,6 +18,7 @@ struct cpu_dev {
struct cpu_model_info c_models[4];

void (*c_early_init)(struct cpuinfo_x86 *);
+ void (*c_bsp_init)(struct cpuinfo_x86 *);
void (*c_init)(struct cpuinfo_x86 *);
void (*c_identify)(struct cpuinfo_x86 *);
unsigned int (*c_size_cache)(struct cpuinfo_x86 *, unsigned int);

\
 
 \ /
  Last update: 2011-08-06 01:01    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site