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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-01 11:59:42 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 16:15:45 +0200 |
| commit | 21129f786f231f7a9dce5b504617b893f50a435f (patch) | |
| tree | d9f507bacc5e657c74257e87a8353cd1e57b3b98 | |
| parent | eba6ac60ba66c6bf6858938442204feaa67dea31 (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>
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 9 |
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); + } } /* |