plugins/amdgpu: Update README.md and criu-amdgpu-plugin.txt

Signed-off-by: Yanning Yang <[email protected]>

Documentation/criu-amdgpu-plugin.txt

@@ -15,6 +15,7 @@ Checkpoint / Restore inside a docker container
 Pytorch
 Tensorflow
 Using CRIU Image Streamer
+Parallel Restore
 
 DESCRIPTION
 -----------

plugins/amdgpu/README.md

@@ -3,7 +3,8 @@ Supporting ROCm with CRIU
 
 _Felix Kuehling <[email protected]>_<br>
 _Rajneesh Bardwaj <[email protected]>_<br>
-_David Yat Sin <[email protected]>_
+_David Yat Sin <[email protected]>_<br>
+_Yanning Yang <[email protected]>_
 
 # Introduction
 
@@ -224,6 +225,27 @@ to resume execution on the GPUs.
 *This new plugin is enabled by the new hook `__RESUME_DEVICES_LATE` in our RFC
 patch series.*
 
+## Restoring BO content in parallel
+
+Restoring the BO content is an important part in the restore of GPU state and
+usually takes a significant amount of time. A possible location for this
+procedure is the `cr_plugin_restore_file` plugin. However, restoring in this
+plugin blocks the target process from performing other restore operations, which
+hinders further optimization of the restore process.
+
+Therefore, a new plugin that runs in the master restore process is introduced,
+and it interacts with the `cr_plugin_restore_file` plugin to complete the
+restore of BO content. Specifically, the target process only needs to send the
+relevant BOs to the master restore process, while this new plugin handles all
+the restore of buffer objects. Through this method, during the restore of the BO
+content, the target process can perform other restore operations, thus
+accelerating the restore procedure. It is an implementation of gCROP from the
+ACM SoCC'24 paper: [On-demand and Parallel Checkpoint/Restore for GPU
+Applications](https://dl.acm.org/doi/10.1145/3698038.3698510).
+
+*This new plugin is enabled by the new hook `__RESTORE_DEVICE_PARALLEL` in our
+patch series.*
+
 ## Other CRIU changes
 
 In addition to the new plugins, we need to make some changes to CRIU itself to