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virtio-iommu: Add replay() memory region callback 

Implement the replay callback to setup all mappings for a new memory
region.

Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-Id: <20201030180510.747225-6-jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Bharat Bhushan 2020-10-30 19:05:05 +01:00 committed by Michael S. Tsirkin
parent 2f6eeb5f0b
commit 308e5e1b5f
2 changed files with 41 additions and 0 deletions
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1
hw/virtio/trace-events
View File

@ -108,6 +108,7 @@ virtio_iommu_report_fault(uint8_t reason, uint32_t flags, uint32_t endpoint, uin
virtio_iommu_fill_resv_property(uint32_t devid, uint8_t subtype, uint64_t start, uint64_t end) "dev= %d, type=%d start=0x%"PRIx64" end=0x%"PRIx64
virtio_iommu_notify_map(const char *name, uint64_t virt_start, uint64_t virt_end, uint64_t phys_start, uint32_t flags) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64" phys_start=0x%"PRIx64" flags=%d"
virtio_iommu_notify_unmap(const char *name, uint64_t virt_start, uint64_t virt_end) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64
virtio_iommu_remap(const char *name, uint64_t virt_start, uint64_t virt_end, uint64_t phys_start) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64" phys_start=0x%"PRIx64
# virtio-mem.c
virtio_mem_send_response(uint16_t type) "type=%" PRIu16

40
hw/virtio/virtio-iommu.c
View File

@ -847,6 +847,45 @@ static gint int_cmp(gconstpointer a, gconstpointer b, gpointer user_data)
return (ua > ub) - (ua < ub);
}
static gboolean virtio_iommu_remap(gpointer key, gpointer value, gpointer data)
{
VirtIOIOMMUMapping *mapping = (VirtIOIOMMUMapping *) value;
VirtIOIOMMUInterval *interval = (VirtIOIOMMUInterval *) key;
IOMMUMemoryRegion *mr = (IOMMUMemoryRegion *) data;
trace_virtio_iommu_remap(mr->parent_obj.name, interval->low, interval->high,
mapping->phys_addr);
virtio_iommu_notify_map(mr, interval->low, interval->high,
mapping->phys_addr, mapping->flags);
return false;
}
static void virtio_iommu_replay(IOMMUMemoryRegion *mr, IOMMUNotifier *n)
{
IOMMUDevice *sdev = container_of(mr, IOMMUDevice, iommu_mr);
VirtIOIOMMU *s = sdev->viommu;
uint32_t sid;
VirtIOIOMMUEndpoint *ep;
sid = virtio_iommu_get_bdf(sdev);
qemu_mutex_lock(&s->mutex);
if (!s->endpoints) {
goto unlock;
}
ep = g_tree_lookup(s->endpoints, GUINT_TO_POINTER(sid));
if (!ep || !ep->domain) {
goto unlock;
}
g_tree_foreach(ep->domain->mappings, virtio_iommu_remap, mr);
unlock:
qemu_mutex_unlock(&s->mutex);
}
static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
@ -1076,6 +1115,7 @@ static void virtio_iommu_memory_region_class_init(ObjectClass *klass,
IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
imrc->translate = virtio_iommu_translate;
imrc->replay = virtio_iommu_replay;
}
static const TypeInfo virtio_iommu_info = {