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

Signed-off-by: Yanning Yang <yangyanning@sjtu.edu.cn>

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 <Felix.Kuehling@amd.com>_<br>
 _Rajneesh Bardwaj <Rajneesh.Bhardwaj@amd.com>_<br>
-_David Yat Sin <David.YatSin@amd.com>_
+_David Yat Sin <David.YatSin@amd.com>_<br>
+_Yanning Yang <yangyanning@sjtu.edu.cn>_
 
 # 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` hook. However, restoring in this hook
+blocks the target process from performing other restore operations, which
+hinders further optimization of the restore process.
+
+Therefore, a new plugin hook that runs in the master restore process is
+introduced, and it interacts with the `cr_plugin_restore_file` hook 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 hook 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 `__POST_FORKING` in our patch
+series.*
+
 ## Other CRIU changes
 
 In addition to the new plugins, we need to make some changes to CRIU itself to