packages/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

hw/arm/smmuv3: Store the PASID table GPA in the translation config

Browse Source 
For VFIO integration we will need to pass the Context Descriptor (CD)
table GPA to the host. The CD table is also referred to as the PASID
table. Its GPA corresponds to the s1ctrptr field of the Stream Table
Entry. So let's decode and store it in the configuration structure.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
This commit is contained in:
Chen Qun 2018-08-09 20:56:44 +02:00
parent a782347b03
commit cf3014ddc1
1 changed files with 45 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
hw-arm-smmuv3-Store-the-PASID-table-GPA-in-the-trans.patch Normal file
View File

@ -0,0 +1,45 @@
From 6fc85d8a6022d94ffec4cc118472cde583706bfb Mon Sep 17 00:00:00 2001
From: Eric Auger <eric.auger@redhat.com>
Date: Thu, 9 Aug 2018 20:56:44 +0200
Subject: [PATCH] hw/arm/smmuv3: Store the PASID table GPA in the translation
config
For VFIO integration we will need to pass the Context Descriptor (CD)
table GPA to the host. The CD table is also referred to as the PASID
table. Its GPA corresponds to the s1ctrptr field of the Stream Table
Entry. So let's decode and store it in the configuration structure.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
---
hw/arm/smmuv3.c | 1 +
include/hw/arm/smmu-common.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 83d59b6d28..f8e721f949 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -352,6 +352,7 @@ static int decode_ste(SMMUv3State *s, SMMUTransCfg *cfg,
"SMMUv3 S1 stalling fault model not allowed yet\n");
goto bad_ste;
}
+ cfg->s1ctxptr = STE_CTXPTR(ste);
return 0;
bad_ste:
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index 1f37844e5c..353668f4ea 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -68,6 +68,7 @@ typedef struct SMMUTransCfg {
uint8_t tbi; /* Top Byte Ignore */
uint16_t asid;
SMMUTransTableInfo tt[2];
+ dma_addr_t s1ctxptr;
uint32_t iotlb_hits; /* counts IOTLB hits for this asid */
uint32_t iotlb_misses; /* counts IOTLB misses for this asid */
} SMMUTransCfg;
--
2.27.0