cb55c547b4
We introduce a new IOMMU Memory Region attribute, IOMMU_ATTR_MSI_TRANSLATE which tells whether the virtual IOMMU translates MSIs. ARM SMMU will expose this attribute since, as opposed to Intel DMAR, MSIs are translated as any other DMA requests. Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com> Signed-off-by: imxcc <xingchaochao@huawei.com> (cherry picked from commit 850ae26a9a2e75f30785c69a1ffc8a41d91aa461)
33 lines
1000 B
Diff
33 lines
1000 B
Diff
From 062923fd4e6d11e1b724f2dd059f8b0c6e65bf7a Mon Sep 17 00:00:00 2001
|
|
From: Eric Auger <eric.auger@redhat.com>
|
|
Date: Mon, 25 Mar 2019 16:35:05 +0100
|
|
Subject: [PATCH] memory: Add IOMMU_ATTR_MSI_TRANSLATE IOMMU memory region
|
|
attribute
|
|
|
|
We introduce a new IOMMU Memory Region attribute, IOMMU_ATTR_MSI_TRANSLATE
|
|
which tells whether the virtual IOMMU translates MSIs. ARM SMMU
|
|
will expose this attribute since, as opposed to Intel DMAR, MSIs
|
|
are translated as any other DMA requests.
|
|
|
|
Signed-off-by: Eric Auger <eric.auger@redhat.com>
|
|
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
|
|
---
|
|
include/exec/memory.h | 1 +
|
|
1 file changed, 1 insertion(+)
|
|
|
|
diff --git a/include/exec/memory.h b/include/exec/memory.h
|
|
index 864bcaeb01..76ef99ed27 100644
|
|
--- a/include/exec/memory.h
|
|
+++ b/include/exec/memory.h
|
|
@@ -323,6 +323,7 @@ typedef struct MemoryRegionClass {
|
|
enum IOMMUMemoryRegionAttr {
|
|
IOMMU_ATTR_SPAPR_TCE_FD,
|
|
IOMMU_ATTR_VFIO_NESTED,
|
|
+ IOMMU_ATTR_MSI_TRANSLATE,
|
|
};
|
|
|
|
/*
|
|
--
|
|
2.27.0
|
|
|