@@ -894,12 +894,15 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write)
rcu_read_lock();
+ trace_vhost_iotlb_miss(dev, 1);
+
iotlb = address_space_get_iotlb_entry(dev->vdev->dma_as,
iova, write);
if (iotlb.target_as != NULL) {
ret = vhost_memory_region_lookup(dev, iotlb.translated_addr,
&uaddr, &len);
if (ret) {
+ trace_vhost_iotlb_miss(dev, 3);
error_report("Fail to lookup the translated address "
"%"PRIx64, iotlb.translated_addr);
goto out;
@@ -911,10 +914,14 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write)
ret = vhost_backend_update_device_iotlb(dev, iova, uaddr,
len, iotlb.perm);
if (ret) {
+ trace_vhost_iotlb_miss(dev, 4);
error_report("Fail to update device iotlb");
goto out;
}
}
+
+ trace_vhost_iotlb_miss(dev, 2);
+
out:
rcu_read_unlock();
@@ -6,6 +6,7 @@ vhost_region_add_section(const char *name, uint64_t gpa, uint64_t size, uint64_t
vhost_region_add_section_merge(const char *name, uint64_t new_size, uint64_t gpa, uint64_t owr) "%s: size: 0x%"PRIx64 " gpa: 0x%"PRIx64 " owr: 0x%"PRIx64
vhost_region_add_section_aligned(const char *name, uint64_t gpa, uint64_t size, uint64_t host) "%s: 0x%"PRIx64"+0x%"PRIx64" @ 0x%"PRIx64
vhost_section(const char *name, int r) "%s:%d"
+vhost_iotlb_miss(void *dev, int step) "%p step %d"
# hw/virtio/vhost-user.c
vhost_user_postcopy_end_entry(void) ""