feat: Support simpler QMP configuration (#1403)

.github/workflows/check.yml

@@ -27,7 +27,7 @@ jobs:
                 -e SC2153
           -
             name: Lint Dockerfile
-            uses: hadolint/hadolint-action@v3.4.0
+            uses: hadolint/hadolint-action@v3.5.0
             with:
               dockerfile: Dockerfile
               ignore: DL3008,DL3067

Dockerfile

@@ -1,9 +1,8 @@
 # syntax=docker/dockerfile:1
 
-FROM qemux/qemu-host:2.06 AS host
 FROM scratch
 
-COPY --from=qemux/qemu:7.48 / /
+COPY --from=qemux/qemu:7.49 / /
 
 ARG VERSION_ARG="0.0"
 ARG VERSION_CSTRUCT="4.7"
@@ -34,8 +33,8 @@ EOF
 
 COPY --chmod=755 ./src /run/
 COPY --chmod=755 ./web /var/www/
-COPY --chmod=755 --from=host /qemu-host.bin /run/host.bin
 COPY --chmod=744 ./web/conf/nginx.conf /etc/nginx/default.conf
+COPY --chmod=755 --from=qemux/qemu-host:2.06 /qemu-host.bin /run/host.bin
 ADD --chmod=775 https://raw.githubusercontent.com/sud0woodo/patology/refs/heads/main/patology.py /run/extract.py
 
 VOLUME /storage

docs/environment.md

@@ -25,6 +25,7 @@ An empty default means the variable is unset and its value is determined automat
 | `HOST_CPU` |  | CPU name reported to DSM. Selected automatically when unset. |
 | `KVM` | `Y` | Enables KVM hardware acceleration. |
 | `RAM_SIZE` | `2G` | Amount of RAM assigned to DSM, such as `2G`, `4G`, `half`, or `max`. |
+| `RAM_BACKEND` |  | Guest RAM backing mechanism, set `memfd` for memfd-backed memory. |
 | `RAM_CHECK` | `Y` | Checks whether enough host memory is available before starting DSM. |
 
 ## 💾 Storage
@@ -72,7 +73,8 @@ An empty default means the variable is unset and its value is determined automat
 |---|---|---|
 | `DISPLAY` | `none` | Display backend, such as `vnc`, `disabled`, or `none`. |
 | `VGA` | `none` | QEMU video adapter model. |
-| `GPU` | `N` | Enables experimental GPU acceleration. |
+| `GPU` | `N` | Enables GPU acceleration. |
+| `VRAM_SIZE` | `4G` | Virtual GPU memory budget. |
 | `RENDERNODE` | `/dev/dri/renderD128` | Render node used for GPU acceleration. |
 
 ## 🎈 Memory Ballooning
@@ -108,6 +110,6 @@ Also see [Dynamic memory allocation](https://github.com/qemus/qemu/blob/master/d
 | `DEBUG` | `N` | Enables verbose debug output. |
 | `TRACE` | `N` | Enables shell command tracing. |
 | `HOST_DEBUG` | `N` | Enables debug output for the DSM host helper. |
-| `MONITOR` |  | QEMU monitor configuration. |
+| `MONITOR` |  | QEMU monitor, such as `/storage/monitor.sock` or `4444`. |
-| `QMP` |  | QEMU Machine Protocol configuration. |
+| `QMP` |  | QEMU Machine Protocol, such as `/storage/qmp.sock` or `4444`. |
 | `ARGUMENTS` |  | Additional raw arguments appended to the QEMU command line. |

readme.md

@@ -203,7 +203,7 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 
 ### How do I enable GPU acceleration?
 
-  To enable hardware-accelerated graphics, add the following lines to your compose file:
+  To enable GPU acceleration using an Intel or AMD GPU, add the following lines to your compose file:
 
   ```yaml
   environment:
@@ -212,7 +212,24 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
     - /dev/dri
   ```
 
-  This can be used to enable the facial recognition function in Synology Photos, but does not provide hardware transcoding for video.
+  For NVIDIA GPUs, the [NVIDIA Container Toolkit](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html) must be installed on the host and the GPU must be exposed to the container:
+
+  ```yaml
+  environment:
+    GPU: "Y"
+    NVIDIA_DRIVER_CAPABILITIES: "all"
+
+  deploy:
+    resources:
+      reservations:
+        devices:
+          - driver: nvidia
+            count: all
+            capabilities:
+              - gpu
+  ```
+
+  GPU acceleration can be used to enable the facial recognition function in Synology Photos, but currently does not provide hardware transcoding for video yet.
 
 ### How do I enable dynamic memory allocation?
 

src/config.sh

@@ -31,17 +31,54 @@ configureMemory() {
   return 0
 }
 
+normalizeSocket() {
+
+  local value="$1"
+  local backend="${value%%,*}"
+
+  if [[ "$backend" == *.sock && "$backend" != *:* ]]; then
+    value="unix:$value"
+    [[ ",$value," == *,server=* ]] || value+=",server=on"
+    if [[ ",$value," != *,wait=* ]] && [[ ",$value," != *,server=off,* ]]; then
+      value+=",wait=off"
+    fi
+  fi
+
+  echo "$value"
+}
+
+normalizePort() {
+
+  local value="$1"
+  local protocol="$2"
+
+  if [[ "$value" =~ ^[0-9]+$ ]]; then
+    value="$protocol:0.0.0.0:$value,server=on,wait=off"
+  fi
+
+  echo "$value"
+}
+
 configureMonitor() {
 
   MON_OPTS=""
-  [ -n "$QMP" ] && MON_OPTS+=" -qmp $QMP"
-  [ -n "$MONITOR" ] && MON_OPTS+=" -monitor $MONITOR"
-  MON_OPTS="${MON_OPTS# }"
 
-  local name="${APP// /-}"
+  if [ -n "$MONITOR" ]; then
-  ID_OPTS="-name $name,process=$PROCESS,debug-threads=on"
+    MONITOR=$(normalizePort "$MONITOR" "telnet")
+    MONITOR=$(normalizeSocket "$MONITOR")
+    MON_OPTS+=" -monitor $MONITOR"
+  fi
+
+  if [ -n "$QMP" ]; then
+    QMP=$(normalizePort "$QMP" "tcp")
+    QMP=$(normalizeSocket "$QMP")
+    MON_OPTS+=" -qmp $QMP"
+  fi
+
+  ID_OPTS="-name ${APP// /-},process=$PROCESS"
   PID_OPTS="-pidfile $QEMU_PID"
 
+  MON_OPTS="${MON_OPTS# }"
   return 0
 }
 

src/prepare.sh

@@ -12,8 +12,8 @@ addSystemDisks() {
   setOwner "$boot" || warn "failed to set the owner for \"$boot\" !"
   setOwner "$system" || warn "failed to set the owner for \"$system\" !"
 
-  DISK_OPTS+=$(createDevice "$boot" "$DISK_TYPE" "1" "0xa" "raw" "$DISK_IO" "$DISK_CACHE" "" "" "synoboot")
+  DISK_OPTS+=$(createDevice "$boot" "$DISK_TYPE" "1" "0xa" "raw" "" "" "synoboot")
-  DISK_OPTS+=$(createDevice "$system" "$DISK_TYPE" "2" "0xb" "raw" "$DISK_IO" "$DISK_CACHE" "" "" "synosys")
+  DISK_OPTS+=$(createDevice "$system" "$DISK_TYPE" "2" "0xb" "raw" "" "" "synosys")
 
   return 0
 }