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(parent: 4f5ce52) | patch
PCI: Set pci=nobios by default
authorBen Hutchings <ben@decadent.org.uk>
Tue, 16 Feb 2016 02:45:42 +0000 (02:45 +0000)
committerSalvatore Bonaccorso <carnil@debian.org>
Sat, 7 Dec 2019 12:24:06 +0000 (12:24 +0000)
commit76dc444305c4a8072ceb5ade41e072895e1bbea9
tree14a169c9ac466f15c465e8251e6580ec915e97f2tree | snapshot
parent4f5ce526c396aeed1c5ae21a03e74a34be3dc2afcommit | diff
PCI: Set pci=nobios by default

CONFIG_PCI_GOBIOS results in physical addresses 640KB-1MB being mapped
W+X, which is undesirable for security reasons and will result in a
warning at boot now that we enable CONFIG_DEBUG_WX.

This can be overridden using the kernel parameter "pci=nobios", but we
want to disable W+X by default.  Disable PCI BIOS probing by default;
it can still be enabled using "pci=bios".

Gbp-Pq: Topic debian
Gbp-Pq: Name i386-686-pae-pci-set-pci-nobios-by-default.patch
arch/x86/pci/common.c diff | blob | history
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