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| author | Jean-Philippe Brucker <jean-philippe@linaro.org> | 2020-10-30 19:05:02 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-11-03 07:19:27 -0500 |
| commit | 31aa323fb97bae3786f5bce5a88668f76fdb0cec (patch) | |
| tree | d706d49a7c82d5ada5f506c7b024e812e186b25b /hw/virtio/virtio-iommu.c | |
| parent | bfe7a961737452ae8e616df758406e86ac289972 (diff) | |
| download | qemu-31aa323fb97bae3786f5bce5a88668f76fdb0cec.zip qemu-31aa323fb97bae3786f5bce5a88668f76fdb0cec.tar.gz qemu-31aa323fb97bae3786f5bce5a88668f76fdb0cec.tar.bz2 | |
virtio-iommu: Store memory region in endpoint struct
Store the memory region associated to each endpoint into the endpoint
structure, to allow efficient memory notification on map/unmap.
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-Id: <20201030180510.747225-3-jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio/virtio-iommu.c')
| -rw-r--r-- | hw/virtio/virtio-iommu.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index 4c8f390..a5c2d69 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -49,6 +49,7 @@ typedef struct VirtIOIOMMUDomain { typedef struct VirtIOIOMMUEndpoint { uint32_t id; VirtIOIOMMUDomain *domain; + IOMMUMemoryRegion *iommu_mr; QLIST_ENTRY(VirtIOIOMMUEndpoint) next; } VirtIOIOMMUEndpoint; @@ -137,16 +138,19 @@ static VirtIOIOMMUEndpoint *virtio_iommu_get_endpoint(VirtIOIOMMU *s, uint32_t ep_id) { VirtIOIOMMUEndpoint *ep; + IOMMUMemoryRegion *mr; ep = g_tree_lookup(s->endpoints, GUINT_TO_POINTER(ep_id)); if (ep) { return ep; } - if (!virtio_iommu_mr(s, ep_id)) { + mr = virtio_iommu_mr(s, ep_id); + if (!mr) { return NULL; } ep = g_malloc0(sizeof(*ep)); ep->id = ep_id; + ep->iommu_mr = mr; trace_virtio_iommu_get_endpoint(ep_id); g_tree_insert(s->endpoints, GUINT_TO_POINTER(ep_id), ep); return ep; @@ -910,9 +914,14 @@ static gboolean reconstruct_endpoints(gpointer key, gpointer value, VirtIOIOMMU *s = (VirtIOIOMMU *)data; VirtIOIOMMUDomain *d = (VirtIOIOMMUDomain *)value; VirtIOIOMMUEndpoint *iter; + IOMMUMemoryRegion *mr; QLIST_FOREACH(iter, &d->endpoint_list, next) { + mr = virtio_iommu_mr(s, iter->id); + assert(mr); + iter->domain = d; + iter->iommu_mr = mr; g_tree_insert(s->endpoints, GUINT_TO_POINTER(iter->id), iter); } return false; /* continue the domain traversal */ |