Messages in this thread | | | Date | Tue, 15 Jul 2008 13:52:53 +0300 | From | Muli Ben-Yehuda <> | Subject | Re: [RFC] [Patch] calgary iommu: Use the first kernel's tce tables in kdump |
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On Tue, Jul 15, 2008 at 02:15:27PM +0530, Chandru wrote: > kdump kernel fails to boot with calgary iommu and aacraid driver on a x366 > box. The ongoing dma's of aacraid from the first kernel continue to exist > until the driver is loaded in the kdump kernel. Calgary is initialized prior > to aacraid and creation of new tce tables causes wrong dma's to occur. Here > we try to get the tce tables of the first kernel in kdump kernel and use > them. While in the kdump kernel we do not allocate new tce tables but instead > read the base addres register contents of calgary iommu and use the tables > that the registers point to. With these changes the kdump kernel and hence > aacraid now boots normally. > > Signed-off-by: Chandru Siddalingappa <chandru@in.ibm.com>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cheers, Muli
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