From dc126664134989975ce9ab9e7d5d2c8916628bf6 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 9aeb420428..45f21c53fe 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1628,14 +1628,6 @@ static int smmuv3_notify_flag_changed(IOMMUMemoryRegion *iommu,
         return -EINVAL;
     }
 
-    if (new & IOMMU_NOTIFIER_MAP) {
-        error_setg(errp,
-                   "device %02x.%02x.%x requires iommu MAP notifier which is "
-                   "not currently supported", pci_bus_num(sdev->bus),
-                   PCI_SLOT(sdev->devfn), PCI_FUNC(sdev->devfn));
-        return -EINVAL;
-    }
-
     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