PCI: avoid early PCI mmconfig init if pci=noearly is given in cmdline
Early type 1 accesses can cause problems on some platforms, and
pci=noearly is supposed to prevent them from occurring. However, early
mcfg probing code uses type 1 and isn't protected by a check for
noearly. This patch fixes that problem.
Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index bec3b04..25a1f8e 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -12,7 +12,8 @@
type = pci_direct_probe();
#endif
- pci_mmcfg_early_init();
+ if (!(pci_probe & PCI_PROBE_NOEARLY))
+ pci_mmcfg_early_init();
#ifdef CONFIG_PCI_OLPC
if (!pci_olpc_init())