x86, AMD IOMMU: add pre-allocation of protection domains

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This patch adds a function to pre-allocate protection domains. So we don't have
to allocate it on the first request for a device (which can happen in atomic
mode).

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: iommu@lists.linux-foundation.org
Cc: bhavna.sarathy@amd.com
Cc: Sebastian.Biemueller@amd.com
Cc: robert.richter@amd.com
Cc: joro@8bytes.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Joerg Roedel 2008-06-26 21:28:04 +02:00 • committed by Ingo Molnar

parent 5d8b53cf3f

commit c432f3df8e

1 changed files with 34 additions and 0 deletions

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arch/x86/kernel/amd_iommu.c

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