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Diffstat (limited to 'arch/x86/pci/mmconfig-shared.c')
-rw-r--r--arch/x86/pci/mmconfig-shared.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index bdf62243186a..0cfebecf2a8f 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -107,6 +107,9 @@ static const char __init *pci_mmcfg_amd_fam10h(void)
int i;
unsigned segnbits = 0, busnbits;
+ if (!(pci_probe & PCI_CHECK_ENABLE_AMD_MMCONF))
+ return NULL;
+
address = MSR_FAM10H_MMIO_CONF_BASE;
if (rdmsr_safe(address, &low, &high))
return NULL;