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(parent: 6cbedb4) | patch
PCI: Set pci=nobios by default
authorBen Hutchings <ben@decadent.org.uk>
Tue, 16 Feb 2016 02:45:42 +0000 (02:45 +0000)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 21 Aug 2019 12:48:11 +0000 (13:48 +0100)
commite3f79a4d286a26b32e88d6b606332f750444de98
tree1bc659499a1dba36242eeb6d27bbfae498a69427tree | snapshot
parent6cbedb4b018cfa67926da8ea02dd0908cf04e184commit | 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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