diff options
| author | Andi Kleen <ak@suse.de> | 2006-09-26 12:52:41 +0400 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 12:52:41 +0400 |
| commit | 0637a70a5db98182d9ad3d6ae1ee30acf20afde9 (patch) | |
| tree | 36b625e24f3fe11a97cd9926ca2be6b2df1cbf89 /drivers/pci/pci.c | |
| parent | 8f60774a116ced9b73ae3913d511687889efe725 (diff) | |
| download | linux-0637a70a5db98182d9ad3d6ae1ee30acf20afde9.tar.xz | |
[PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1
Some buggy systems can machine check when config space accesses
happen for some non existent devices. i386/x86-64 do some early
device scans that might trigger this. Allow pci=noearly to disable
this. Also when type 1 is disabling also don't do any early
accesses which are always type1.
This moves the pci= configuration parsing to be a early parameter.
I don't think this can break anything because it only changes
a single global that is only used by PCI.
Cc: gregkh@suse.de
Cc: Trammell Hudson <hudson@osresearch.net>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 9f79dd6d51ab..684deb6b03aa 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -953,13 +953,12 @@ static int __devinit pci_setup(char *str) } str = k; } - return 1; + return 0; } +early_param("pci", pci_setup); device_initcall(pci_init); -__setup("pci=", pci_setup); - #if defined(CONFIG_ISA) || defined(CONFIG_EISA) /* FIXME: Some boxes have multiple ISA bridges! */ struct pci_dev *isa_bridge; |