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authorJoerg Roedel <joerg.roedel@amd.com>2009-09-01 11:59:42 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2009-09-03 16:15:45 +0200
commit21129f786f231f7a9dce5b504617b893f50a435f (patch)
treed9f507bacc5e657c74257e87a8353cd1e57b3b98 /arch/x86/kernel/amd_iommu.c
parenteba6ac60ba66c6bf6858938442204feaa67dea31 (diff)
x86/amd-iommu: Make sure a device is assigned in passthrough mode
When the IOMMU driver runs in passthrough mode it has to make sure that every device not assigned to an IOMMU-API domain must be put into the passthrough domain instead of keeping it unassigned. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
-rw-r--r--arch/x86/kernel/amd_iommu.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 9aa135d4453..a8e74c34dd2 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1141,6 +1141,15 @@ static void __detach_device(struct protection_domain *domain, u16 devid)
/* ready */
spin_unlock(&domain->lock);
+
+ /*
+ * If we run in passthrough mode the device must be assigned to the
+ * passthrough domain if it is detached from any other domain
+ */
+ if (iommu_pass_through) {
+ struct amd_iommu *iommu = amd_iommu_rlookup_table[devid];
+ __attach_device(iommu, pt_domain, devid);
+ }
}
/*