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hw/arm/smmuv3: Set the restoration priority of the vSMMUv3 explicitly

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Ensure the vSMMUv3 will be restored before all PCIe devices so that DMA
translation can work properly during migration.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id: 20201019091508.197-1-yuzenghui@huawei.com
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
This commit is contained in:
Chen Qun 2020-10-19 17:15:08 +08:00
parent 3c9cc492f2
commit f5fd61400b
1 changed files with 33 additions and 0 deletions
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33
hw-arm-smmuv3-Set-the-restoration-priority-of-the-vS.patch Normal file
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@ -0,0 +1,33 @@
From eceb9213e23d15d5b4342b6a6a8368f4fec60c2f Mon Sep 17 00:00:00 2001
From: Zenghui Yu <yuzenghui@huawei.com>
Date: Mon, 19 Oct 2020 17:15:08 +0800
Subject: [PATCH] hw/arm/smmuv3: Set the restoration priority of the vSMMUv3
explicitly
Ensure the vSMMUv3 will be restored before all PCIe devices so that DMA
translation can work properly during migration.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id: 20201019091508.197-1-yuzenghui@huawei.com
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
---
hw/arm/smmuv3.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 7911944c59..3b5723e1e1 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1424,6 +1424,7 @@ static const VMStateDescription vmstate_smmuv3 = {
.name = "smmuv3",
.version_id = 1,
.minimum_version_id = 1,
+ .priority = MIG_PRI_IOMMU,
.fields = (VMStateField[]) {
VMSTATE_UINT32(features, SMMUv3State),
VMSTATE_UINT8(sid_size, SMMUv3State),
--
2.27.0