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Groups > linux.kernel > #1554358
| From | Eric Auger <eric.auger@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v7 06/19] iommu: Only map direct mapped regions |
| Date | 2017-01-09 15:00 +0100 |
| Message-ID | <sXIEq-4UO-19@gated-at.bofh.it> (permalink) |
| References | <sXIuJ-4Rr-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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>
---
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 927878d..41c1906 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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[PATCH v7 00/19] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Eric Auger <eric.auger@redhat.com> - 2017-01-09 14:50 +0100
[PATCH v7 09/19] iommu/vt-d: Implement reserved region get/put callbacks Eric Auger <eric.auger@redhat.com> - 2017-01-09 15:00 +0100
[PATCH v7 06/19] iommu: Only map direct mapped regions Eric Auger <eric.auger@redhat.com> - 2017-01-09 15:00 +0100
[PATCH v7 02/19] iommu/dma: Allow MSI-only cookies Eric Auger <eric.auger@redhat.com> - 2017-01-09 15:00 +0100
[PATCH v7 05/19] iommu: iommu_alloc_resv_region Eric Auger <eric.auger@redhat.com> - 2017-01-09 15:00 +0100
Re: [PATCH v7 00/19] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Joerg Roedel <joro@8bytes.org> - 2017-01-10 15:20 +0100
Re: [PATCH v7 00/19] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Will Deacon <will.deacon@arm.com> - 2017-01-10 15:20 +0100
Re: [PATCH v7 00/19] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Auger Eric <eric.auger@redhat.com> - 2017-01-10 17:00 +0100
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