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(parent: 657cbb6) | patch
x86/amd-iommu: Add device bind reference counting
authorJoerg Roedel <joerg.roedel@amd.com>
Wed, 25 Nov 2009 14:59:57 +0000 (15:59 +0100)
committerJoerg Roedel <joerg.roedel@amd.com>
Fri, 27 Nov 2009 13:20:33 +0000 (14:20 +0100)
commit241000556f751dacd332df6ab2e903a23746e51e
treeb3dad45997c5e3c9eb754901e24dbca9c959852atree | snapshot (tar.gz zip)
parent657cbb6b6cba0f9c98c5299e0c803b2c0e67ea0acommit | diff
x86/amd-iommu: Add device bind reference counting

This patch adds a reference count to each device to count
how often the device was bound to that domain. This is
important for single devices that act as an alias for a
number of others. These devices must stay bound to their
domains until all devices that alias to it are unbound from
the same domain.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
arch/x86/include/asm/amd_iommu_types.h diff | blob | blame | history
arch/x86/kernel/amd_iommu.c diff | blob | blame | history