diff options
author | Andy Lutomirski <luto@kernel.org> | 2016-12-15 18:14:42 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 10:39:25 (GMT) |
commit | 36c1bc65d211b929dda601f78c444c228d8df27f (patch) | |
tree | d5126ad274193d473d1835ef95794367c3bfd7a5 | |
parent | bedcab8723cec3bf367ed28b6baa5350d54ef701 (diff) | |
download | linux-36c1bc65d211b929dda601f78c444c228d8df27f.tar.xz |
x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6
commit 3df8d9208569ef0b2313e516566222d745f3b94b upstream.
A typo (or mis-merge?) resulted in leaf 6 only being probed if
cpuid_level >= 7.
Fixes: 2ccd71f1b278 ("x86/cpufeature: Move some of the scattered feature bits to x86_capability")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Link: http://lkml.kernel.org/r/6ea30c0e9daec21e488b54761881a6dfcf3e04d0.1481825597.git.luto@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | arch/x86/kernel/cpu/common.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index c2048b4..dd62708 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -667,13 +667,14 @@ void get_cpu_cap(struct cpuinfo_x86 *c) c->x86_capability[CPUID_1_EDX] = edx; } + /* Thermal and Power Management Leaf: level 0x00000006 (eax) */ + if (c->cpuid_level >= 0x00000006) + c->x86_capability[CPUID_6_EAX] = cpuid_eax(0x00000006); + /* Additional Intel-defined flags: level 0x00000007 */ if (c->cpuid_level >= 0x00000007) { cpuid_count(0x00000007, 0, &eax, &ebx, &ecx, &edx); - c->x86_capability[CPUID_7_0_EBX] = ebx; - - c->x86_capability[CPUID_6_EAX] = cpuid_eax(0x00000006); c->x86_capability[CPUID_7_ECX] = ecx; } |