Author: Vladimir Davydov
Email: vdavy...@parallels.com
Subject: arch: x86: report cpuid:0000000d_1 in cpuinfo
Date: Mon, 8 Dec 2014 12:40:43 +0300

We want to mask it, therefore we should obtain it with raw cpuid
instruction while reporting /proc/cpuinfo.

https://jira.sw.ru/browse/PSBM-30577

Signed-off-by: Vladimir Davydov <vdavy...@parallels.com>
Acked-by: Cyrill Gorcunov <gorcu...@openvz.org>
=============================================================================

https://jira.sw.ru/browse/PSBM-33638

Signed-off-by: Vladimir Davydov <vdavy...@virtuozzo.com>
---
 arch/x86/kernel/cpu/proc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index 77c7c825f95d..1a95a06b8f9a 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -67,7 +67,7 @@ static void init_cpu_flags(void *dummy)
        int cpu = smp_processor_id();
        struct cpu_flags *flags = &per_cpu(cpu_flags, cpu);
        struct cpuinfo_x86 *c = &cpu_data(cpu);
-       unsigned int tmp1, tmp2;
+       unsigned int tmp1, tmp2, tmp3;
        int i;
 
        bitmap_zero((unsigned long *)flags, 32*NCAPINTS);
@@ -83,6 +83,10 @@ static void init_cpu_flags(void *dummy)
            c->extended_cpuid_level >= 0x80000001)
                __do_cpuid_fault(0x80000001, 0, &tmp1, &tmp2,
                                 &flags->val[6], &flags->val[1]);
+
+       if (c->cpuid_level >= 0x0000000d)
+               __do_cpuid_fault(0x0000000d, 1, &flags->val[10],
+                                &tmp1, &tmp2, &tmp3);
 }
 
 static int show_cpuinfo(struct seq_file *m, void *v)
-- 
2.1.4

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