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[PATCH] x86-64: robustify bad_dma_address handling
authorMuli Ben-Yehuda <muli@il.ibm.com>
Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)
committerAndi Kleen <andi@basil.nowhere.org>
Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)
commit310adfdd9153f6ae818981a38a48dd2330990d8d
tree6c093730e11bcfe96368db6af86a43e2c4a9abc6tree | snapshot (tar.gz zip)
parent2fa8a050a0026eadbb39a2f281011991e00fe29acommit | diff
[PATCH] x86-64: robustify bad_dma_address handling

- set bad_dma_address explicitly to 0x0
- reserve 32 pages from bad_dma_address and up
- WARN_ON() a driver feeding us bad_dma_address

Thanks to Leo Duran <leo.duran@amd.com> for the suggestion.

Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Leo Duran <leo.duran@amd.com>
Cc: Job Mason <jdmason@kudzu.us>
arch/x86_64/kernel/pci-calgary.c diff | blob | blame | history