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hw/arm/smmuv3: Allow MAP notifiers

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We now have all bricks to support nested paging. This
uses MAP notifiers to map the MSIs. So let's allow MAP
notifiers to be registered.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
This commit is contained in:
Chen Qun 2020-03-18 11:17:36 +01:00
parent b81289b550
commit c2ecdaca13
1 changed files with 37 additions and 0 deletions
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37
hw-arm-smmuv3-Allow-MAP-notifiers.patch Normal file
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@ -0,0 +1,37 @@
From 965729b4875f637dacdbf82960347beb65512d12 Mon Sep 17 00:00:00 2001
From: Eric Auger <eric.auger@redhat.com>
Date: Wed, 18 Mar 2020 11:17:36 +0100
Subject: [PATCH] hw/arm/smmuv3: Allow MAP notifiers
We now have all bricks to support nested paging. This
uses MAP notifiers to map the MSIs. So let's allow MAP
notifiers to be registered.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
---
hw/arm/smmuv3.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 931d6eae57..c26fba118c 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1563,14 +1563,6 @@ static void smmuv3_notify_flag_changed(IOMMUMemoryRegion *iommu,
SMMUv3State *s3 = sdev->smmu;
SMMUState *s = &(s3->smmu_state);
- if (new & IOMMU_NOTIFIER_MAP) {
- int bus_num = pci_bus_num(sdev->bus);
- PCIDevice *pcidev = pci_find_device(sdev->bus, bus_num, sdev->devfn);
-
- warn_report("SMMUv3 does not support notification on MAP: "
- "device %s will not function properly", pcidev->name);
- }
-
if (old == IOMMU_NOTIFIER_NONE) {
trace_smmuv3_notify_flag_add(iommu->parent_obj.name);
QLIST_INSERT_HEAD(&s->devices_with_notifiers, sdev, next);
--
2.27.0