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memory: Add IOMMU_ATTR_MSI_TRANSLATE IOMMU memory region attribute

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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)
This commit is contained in:
Chen Qun 2019-03-25 16:35:05 +01:00 committed by yezengruan
parent 5e769c4350
commit cb55c547b4
1 changed files with 32 additions and 0 deletions
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32
memory-Add-IOMMU_ATTR_MSI_TRANSLATE-IOMMU-memory-reg.patch Normal file
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@ -0,0 +1,32 @@
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