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[Qemu-devel] [PATCH v4 5/5] virtio-iommu: add iommu notifier memory-regi
From: |
Bharat Bhushan |
Subject: |
[Qemu-devel] [PATCH v4 5/5] virtio-iommu: add iommu notifier memory-region |
Date: |
Wed, 27 Sep 2017 12:03:20 +0530 |
Finally add notify_flag_changed() to for memory-region
access flag iommu flag change notifier
Finally add the memory notifier
Signed-off-by: Bharat Bhushan <address@hidden>
---
v3->v4:
- notify_flag_changed functionality moved in separate patch
- No other changes
hw/virtio/trace-events | 2 ++
hw/virtio/virtio-iommu.c | 31 +++++++++++++++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
index 840d54f..a9de0d4 100644
--- a/hw/virtio/trace-events
+++ b/hw/virtio/trace-events
@@ -52,3 +52,5 @@ virtio_iommu_set_page_size_mask(const char *iommu_mr,
uint64_t mask) "mr=%s page
virtio_iommu_notify_map(const char *name, hwaddr iova, hwaddr paddr, hwaddr
map_size) "mr=%s iova=0x%"PRIx64" pa=0x%" PRIx64" size=0x%"PRIx64""
virtio_iommu_notify_unmap(const char *name, hwaddr iova, hwaddr map_size)
"mr=%s iova=0x%"PRIx64" size=0x%"PRIx64""
virtio_iommu_remap(hwaddr iova, hwaddr pa, hwaddr size) "iova=0x%"PRIx64"
pa=0x%" PRIx64" size=0x%"PRIx64""
+virtio_iommu_notify_flag_add(const char *iommu) "Add virtio-iommu notifier
node for memory region %s"
+virtio_iommu_notify_flag_del(const char *iommu) "Del virtio-iommu notifier
node for memory region %s"
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index d4d34cf..a9b0d72 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -764,6 +764,36 @@ push:
}
}
+static void virtio_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu_mr,
+ IOMMUNotifierFlag old,
+ IOMMUNotifierFlag new)
+{
+ IOMMUDevice *sdev = container_of(iommu_mr, IOMMUDevice, iommu_mr);
+ VirtIOIOMMU *s = sdev->viommu;
+ VirtioIOMMUNotifierNode *node = NULL;
+ VirtioIOMMUNotifierNode *next_node = NULL;
+
+ if (old == IOMMU_NOTIFIER_NONE) {
+ trace_virtio_iommu_notify_flag_add(iommu_mr->parent_obj.name);
+ node = g_malloc0(sizeof(*node));
+ node->iommu_dev = sdev;
+ QLIST_INSERT_HEAD(&s->notifiers_list, node, next);
+ return;
+ }
+
+ /* update notifier node with new flags */
+ QLIST_FOREACH_SAFE(node, &s->notifiers_list, next, next_node) {
+ if (node->iommu_dev == sdev) {
+ if (new == IOMMU_NOTIFIER_NONE) {
+ trace_virtio_iommu_notify_flag_del(iommu_mr->parent_obj.name);
+ QLIST_REMOVE(node, next);
+ g_free(node);
+ }
+ return;
+ }
+ }
+}
+
static IOMMUTLBEntry virtio_iommu_translate(IOMMUMemoryRegion *mr, hwaddr addr,
IOMMUAccessFlags flag)
{
@@ -1041,6 +1071,7 @@ static void
virtio_iommu_memory_region_class_init(ObjectClass *klass,
imrc->translate = virtio_iommu_translate;
imrc->set_page_size_mask = virtio_iommu_set_page_size_mask;
imrc->replay = virtio_iommu_replay;
+ imrc->notify_flag_changed = virtio_iommu_notify_flag_changed;
}
static const TypeInfo virtio_iommu_info = {
--
1.9.3
- [Qemu-devel] [PATCH v4 0/5] virtio-iommu: VFIO integration, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 1/5] target/arm/kvm: Translate the MSI doorbell in kvm_arch_fixup_msi_route, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 2/5] virtio-iommu: Add iommu notifier for map/unmap, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 4/5] virtio-iommu: add iommu replay, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 3/5] virtio-iommu: Call iommu notifier for attach/detach, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 5/5] virtio-iommu: add iommu notifier memory-region,
Bharat Bhushan <=
- Re: [Qemu-devel] [PATCH v4 0/5] virtio-iommu: VFIO integration, Bharat Bhushan, 2017/09/27
- Re: [Qemu-devel] [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integration, Linu Cherian, 2017/09/27
- Re: [Qemu-devel] [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integration, Linu Cherian, 2017/09/27