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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-07-18 16:22:36 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-20 02:43:30 -0400 |
| commit | a83fe32fa668c0a17b3f99a1480b006f7d649924 (patch) | |
| tree | c9b27f822506affbba02a08253c73eff326f4303 /arch/x86/pci/direct.c | |
| parent | 0679c2f47d50651018dd5e0bf35330f6e6ae35ec (diff) | |
x86, pci: detect end_bus_number according to acpi/e820 reserved, v2
Jack Howarth reported that 2.6.26-rc9-git9 doesn't boot on MacBookPro2.
the reason is a faulty BIOS update that reportes faulty resources.
Nevertheless it's possible for Linux to be more resolent about this
situation (and similar situations) and work around this bug, by
cross-checking the mmconf range against the e820 table and ACPI resources.
Change the mconf bus range from [0,0xff] to to [0, 0x3f]
to match range [0xf0000000, 0xf4000000) in e820 tables.
[ v2, yhlu.kernel@gmail.com:
x86, pci: detect end_bus_number according to acpi/e820 reserved - fix ]
Reported-by: Jack Howarth <howarth@bromo.msbb.uc.edu>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: jbarnes@virtuousgeek.org
Cc: Jack Howarth <howarth@bromo.msbb.uc.edu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/pci/direct.c')
0 files changed, 0 insertions, 0 deletions