Messages in this thread Patch in this message | | | From | Eric Auger <> | Subject | [RFC v4 05/16] iommu: Only map direct mapped regions | Date | Tue, 13 Dec 2016 20:30:23 +0000 |
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As we introduced new reserved region types which do not require mapping, let's make sure we only map direct mapped regions.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
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v3 -> v4: - use region's type and reword commit message and title --- drivers/iommu/iommu.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index f83d762..ae3d97b 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -343,6 +343,9 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group, start = ALIGN(entry->start, pg_size); end = ALIGN(entry->start + entry->length, pg_size); + if (entry->type != IOMMU_RESV_DIRECT) + continue; + for (addr = start; addr < end; addr += pg_size) { phys_addr_t phys_addr; -- 1.9.1
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