[Xen-devel] [PATCH 1/3] xen/x86: Correct {a, m}perf check in generic_identify()

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
---
 xen/arch/x86/cpu/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/cpu/common.c b/xen/arch/x86/cpu/common.c
index 653b052..02f2504 100644
--- a/xen/arch/x86/cpu/common.c
+++ b/xen/arch/x86/cpu/common.c
@@ -239,7 +239,7 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 
*c)
        if ( cpu_has(c, X86_FEATURE_CLFLSH) )
                c->x86_clflush_size = ((ebx >> 8) & 0xff) * 8;
 
-       if ( (c->cpuid_level > CPUID_PM_LEAF) &&
+       if ( (c->cpuid_level >= CPUID_PM_LEAF) &&
             (cpuid_ecx(CPUID_PM_LEAF) & CPUID6_ECX_APERFMPERF_CAPABILITY) )
                set_bit(X86_FEATURE_APERFMPERF, c->x86_capability);
 
-- 
2.1.4


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