From: Jacob Pan <[email protected]> commit 1dedefd1a066a795a87afca9c0236e1a94de9bf6 upstream.
Some extra CPU features such as ARAT is needed in early boot so that x86_init function pointers can be set up properly. http://lkml.org/lkml/2010/5/18/519 At start_kernel() level, this patch moves init_scattered_cpuid_features() from check_bugs() to setup_arch() -> early_cpu_init() which is earlier than platform specific x86_init layer setup. Suggested by HPA. Signed-off-by: Jacob Pan <[email protected]> LKML-Reference: <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> --- arch/x86/kernel/cpu/common.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index c4329af..497c3b2 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -576,6 +576,7 @@ void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c) if (c->extended_cpuid_level >= 0x80000007) c->x86_power = cpuid_edx(0x80000007); + init_scattered_cpuid_features(c); } static void __cpuinit identify_cpu_without_cpuid(struct cpuinfo_x86 *c) @@ -731,7 +732,6 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 *c) get_model_name(c); /* Default name */ - init_scattered_cpuid_features(c); detect_nopl(c); } -- 1.7.3.3 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
