diff options
| author | Eric Auger <eric.auger@redhat.com> | 2017-01-19 20:57:48 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-01-23 11:48:16 +0000 |
| commit | d30ddcaa7b028049cdfee3a40248002d07b2bbf3 (patch) | |
| tree | 698f8d39db575c8e703c1ac41f72dd091eb59293 /drivers/iommu | |
| parent | e5b5234a36ca283158721d3d2e0cddfa324abdf9 (diff) | |
| download | linux-d30ddcaa7b028049cdfee3a40248002d07b2bbf3.tar.bz2 | |
iommu: Add a new type field in iommu_resv_region
We introduce a new field to differentiate the reserved region
types and specialize the apply_resv_region implementation.
Legacy direct mapped regions have IOMMU_RESV_DIRECT type.
We introduce 2 new reserved memory types:
- IOMMU_RESV_MSI will characterize MSI regions that are mapped
- IOMMU_RESV_RESERVED characterize regions that cannot by mapped.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index f7a024f1e1dc..5f7ea4faa505 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3186,6 +3186,7 @@ static void amd_iommu_get_resv_regions(struct device *dev, region->start = entry->address_start; region->length = entry->address_end - entry->address_start; + region->type = IOMMU_RESV_DIRECT; if (entry->prot & IOMMU_PROT_IR) region->prot |= IOMMU_READ; if (entry->prot & IOMMU_PROT_IW) |