newer version of vfio-isolate correctly support cgroupsv2

roles/win10/files/hooks/qemu

@@ -3,27 +3,15 @@
 prepare() {
     systemctl start win10-usb
         
-    # setup cgroupv2
-    systemctl set-property --runtime -- user.slice AllowedCPUs=0,4
-    systemctl set-property --runtime -- system.slice AllowedCPUs=0,4
-    systemctl set-property --runtime -- init.scope AllowedCPUs=0,4
-
-
     vfio-isolate -u /tmp/win10.undo \
         drop-caches \
         compact-memory \
         irq-affinity mask C1-3,5-7 \
+        cpuset-create --cpus C0,4 /host.slice \
+        cpuset-create --cpus C1-3,5-7 -nlb /win10.slice \
+        move-tasks / /host.slice \
         cpu-governor performance C0-7
 
-    # vfio-isolate -u /tmp/win10.undo \
-    #     drop-caches \
-    #     compact-memory \
-    #     irq-affinity mask C1-3,5-7 \
-    #     cpuset-create --cpus C0,4 /host.slice \
-    #     cpuset-create --cpus C1-3,5-7 -nlb /win10.slice \
-    #     move-tasks / /host.slice \
-    #     cpu-governor performance C0-7
-
     for _ in $(seq 5); do
         sleep 3
         # assign hugepages

roles/win10/templates/win10.xml

@@ -63,6 +63,8 @@
     <topology sockets='1' cores='3' threads='2'/>
     <cache mode='passthrough'/>
     <feature policy='require' name='invtsc'/>
+    <!-- required for Genshin Impact, come with a performance hit -->
+    <feature policy="disable" name="hypervisor"/>
   </cpu>
   <clock offset='localtime'>
     <timer name='rtc' present='no' tickpolicy='catchup'/>