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authorArthur Heymans <arthur@aheymans.xyz>2021-11-17 17:25:48 +0100
committerDavid Hendricks <david.hendricks@gmail.com>2023-02-06 00:22:46 +0000
commit20d25779c8eab9e21668a18a6180d75775f4eaee (patch)
tree521cf8f4f8c9a4be624c22ffac10cc0e85ebd445 /src/lib/version.c
parent306bd40939dfee091186d28e1668607bc144decb (diff)
device/pci_device.c: Add way to limit max bus numbers
By default this limits PCI buses to CONFIG_MMCONF_BUS_NUMBER. Some platforms have multiple PCI root busses (e.g. xeon_sp), where bus numbers are limited. This provides a basic check. On some platforms it looks like programming 0xff to the subordinate bus number confuses and hangs the hardware. Change-Id: I0582b156df1a5f76119a3687886c4d58f2d3ad6f Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/59395 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'src/lib/version.c')
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