Thread (15 messages) flat view 15 messages, 3 authors, 2016-07-11

[PATCH v2 1/6] iommu: add IOMMU_PRIV attribute

From: robin.murphy@arm.com (Robin Murphy)
Date: 2016-07-11 14:08:14
Also in: linux-iommu, lkml

On 09/07/16 03:09, Mitchel Humpherys wrote:
quoted hunk ↗ jump to hunk
Add the IOMMU_PRIV attribute, which is used to indicate privileged
mappings.

Signed-off-by: Mitchel Humpherys <redacted>
---
 include/linux/iommu.h | 1 +
 1 file changed, 1 insertion(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 664683aedcce..01c9f2667f2b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -31,6 +31,7 @@
 #define IOMMU_CACHE	(1 << 2) /* DMA cache coherency */
 #define IOMMU_NOEXEC	(1 << 3)
 #define IOMMU_MMIO	(1 << 4) /* e.g. things like MSI doorbells */
+#define IOMMU_PRIV	(1 << 5)
I agree on the IOMMU_PRIV name, but can't help thinking it might be
worth a brief comment to make it abundantly clear@a glance that it
isn't "private" or "priority 5" or whatever ;)

Robin.
 struct iommu_ops;
 struct iommu_group;
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