[Xen-devel] [PATCH v2 1/2] x86/VPMU: return correct fixed PMC count

[Brendan Gregg <bgregg@xxxxxxxxxxx>]

Fixes a register typo.

Signed-off-by: Brendan Gregg <bgregg@xxxxxxxxxxx>
---
 xen/arch/x86/cpu/vpmu_intel.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/cpu/vpmu_intel.c b/xen/arch/x86/cpu/vpmu_intel.c
index 12f80ae..8d83a1a 100644
--- a/xen/arch/x86/cpu/vpmu_intel.c
+++ b/xen/arch/x86/cpu/vpmu_intel.c
@@ -166,10 +166,10 @@ static int core2_get_arch_pmc_count(void)
  */
 static int core2_get_fixed_pmc_count(void)
 {
-    u32 eax;
+    u32 edx;
 
-    eax = cpuid_eax(0xa);
-    return MASK_EXTR(eax, PMU_FIXED_NR_MASK);
+    edx = cpuid_edx(0xa);
+    return MASK_EXTR(edx, PMU_FIXED_NR_MASK);
 }
 
 /* edx bits 5-12: Bit width of fixed-function performance counters  */
-- 
1.9.1


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