From 3c6d12a3b19527c68b6462eaeaa72bbb2db2b02c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= Date: Thu, 21 Dec 2023 18:43:19 +0100 Subject: vdpa: move iommu_list to vhost_vdpa_shared MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Next patches will register the vhost_vdpa memory listener while the VM is migrating at the destination, so we can map the memory to the device before stopping the VM at the source. The main goal is to reduce the downtime. However, the destination QEMU is unaware of which vhost_vdpa device will register its memory_listener. If the source guest has CVQ enabled, it will be the CVQ device. Otherwise, it will be the first one. Move the iommu_list member to VhostVDPAShared so all vhost_vdpa can use it, rather than always in the first / last vhost_vdpa. Signed-off-by: Eugenio Pérez Acked-by: Jason Wang Message-Id: <20231221174322.3130442-11-eperezma@redhat.com> Tested-by: Lei Yang Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/vhost-vdpa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'hw') diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index cbfcf18..a2713b9 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -279,7 +279,7 @@ static void vhost_vdpa_iommu_region_add(MemoryListener *listener, return; } - QLIST_INSERT_HEAD(&v->iommu_list, iommu, iommu_next); + QLIST_INSERT_HEAD(&v->shared->iommu_list, iommu, iommu_next); memory_region_iommu_replay(iommu->iommu_mr, &iommu->n); return; @@ -292,7 +292,7 @@ static void vhost_vdpa_iommu_region_del(MemoryListener *listener, struct vdpa_iommu *iommu; - QLIST_FOREACH(iommu, &v->iommu_list, iommu_next) + QLIST_FOREACH(iommu, &v->shared->iommu_list, iommu_next) { if (MEMORY_REGION(iommu->iommu_mr) == section->mr && iommu->n.start == section->offset_within_region) { -- cgit v1.1