[PATCH 2/4] x86: Add a BSP cpu_dev helper
From: Borislav Petkov <hidden>
Date: 2011-11-04 11:26:38
Also in:
lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Upstream commit: a110b5ec7371592eac856ac5c22dc7b518952d44 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 <redacted> Link: http://lkml.kernel.org/r/20110805180116.GB26217@aftab Signed-off-by: H. Peter Anvin <redacted> --- 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 6218439..ec63df5 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);
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1.7.8.rc0