Add blob resource support to the vhost-user-gpu device, enabling
Vulkan pass-through via Venus with a vhost-user backend such as
vhost-device-gpu.

Patches 1-2 forward the RESOURCE_BLOB and CONTEXT_INIT feature
flags from the backend to the guest and register a shared memory
region for SHMEM_MAP/UNMAP operations.

Patch 3 fixes a deadlock that occurs when the memory region
transaction commit (needed so the KVM slot exists before the
guest accesses the mapped region) triggers ADD_MEM_REG back to
the backend while it is still blocked waiting for the SHMEM_MAP
reply.

Dorinda Bassey (1):
  vhost: Fix SHMEM_MAP transaction ordering and resulting deadlock

Matej Hrica (2):
  vhost-user-gpu: Forward RESOURCE_BLOB and CONTEXT_INIT flags
  vhost-user-gpu: Add shared memory region support

 hw/display/vhost-user-gpu.c | 22 ++++++++++++++++++++++
 hw/virtio/vhost-user.c      |  6 +++---
 hw/virtio/vhost.c           | 10 ++++++++++
 3 files changed, 35 insertions(+), 3 deletions(-)

-- 
2.52.0