libhsakmt/virtio: add virtio support for libhsakmt

This patch adds VirtIO support to the libhsakmt library, enabling communication
 with AMD GPUs via VirtIO.

Details
- CMakeLists.txt: Added a new CMakeLists.txt file for the VirtIO component
of libhsakmt.
- hsakmt_virtio.c/h: Implemented the core VirtIO functionality, including
VirtIO GPU device initialization, command execution, and memory management.
- virtio_gpu.c/h: Contains the implementation of the VirtIO GPU device,
including ioctl handling, shared memory management, and command execution.
- hsakmt_virtio_events.c: Implements event handling for VirtIO, such as event
creation, destruction, setting, resetting, and querying event states.
- hsakmt_virtio_memory.c: Manages memory operations for VirtIO, including memory
allocation, freeing, mapping, and unmapping.
- hsakmt_virtio_queues.c: Implements queue management for VirtIO, including
queue creation, destruction, and updating.
- hsakmt_virtio_topology.c: Handles system and node properties for VirtIO.
- hsakmt_virtio_vm.c: Manages VM-related operations for VirtIO, such as
reserving and dereserving VA space.
- include/linux/virtgpu_drm.h: Contains DRM definitions for VirtIO GPU.

Key Features
- VirtIO GPU Initialization: The library can now initialize a VirtIO GPU device
and communicate with it.
- Command Execution: Supports executing commands on the VirtIO GPU device.
- Memory Management: Provides functions for allocating, freeing, mapping, and
unmapping memory for VirtIO operations.
- Event Handling: Implements a comprehensive event system for VirtIO.
- Queue Management: Allows for creating, destroying, and updating queues
on the VirtIO GPU device.
- System and Node Properties: Retrieves and manages system and node
properties for VirtIO.

Signed-off-by: Honglei Huang <Honglei1.Huang@amd.com>


[ROCm/ROCR-Runtime commit: 48d3719dba]

projects/rocr-runtime/runtime/hsa-runtime/CMakeLists.txt

@@ -302,6 +302,10 @@ target_link_libraries ( ${CORE_RUNTIME_TARGET} PRIVATE elf::elf dl pthread rt )
 # Link to hsakmt-staticdrm target for static library builds
 if( BUILD_SHARED_LIBS )
   target_link_libraries ( ${CORE_RUNTIME_TARGET} PRIVATE hsakmt::hsakmt PkgConfig::drm)
+  if( BUILD_THUNK_VIRTIO )
+    message(STATUS "Building with virtio support")
+    target_link_libraries ( ${CORE_RUNTIME_TARGET} PRIVATE hsakmt_virtio)
+  endif()
   find_package(rocprofiler-register)
   if(rocprofiler-register_FOUND)
     target_compile_definitions(${CORE_RUNTIME_TARGET} PRIVATE HSA_ROCPROFILER_REGISTER=1