various ajustements

roles/win10/files/archlinux_iommu.conf

@@ -1,6 +1,6 @@
 title    Archlinux w/ VFIO
-linux    /vmlinuz-linux
+linux    /vmlinuz-linux-xanmod
 initrd   /intel-ucode.img
-initrd   /initramfs-linux.img
+initrd   /initramfs-linux-xanmod.img
-options  intel_iommu=on iommu=pt intel_iommu=igfx_off experimental_zcopytx=1 kvm.ignore_msrs=1 acpi_backlight=none root=LABEL=ARCHROOT rw
+options  mitigations=off intel_iommu=on iommu=pt intel_iommu=igfx_off experimental_zcopytx=1 kvm.ignore_msrs=1 acpi_backlight=none root=LABEL=ARCHROOT rw
 

roles/win10/files/hooks/qemu

@@ -1,18 +1,64 @@
 #!/bin/bash
+
+prepare() {
+    systemctl start vm-usb-helper
+
+    echo "Defrag RAM"
+    echo 1 > /proc/sys/vm/compact_memory
+    for _ in $(seq 5); do
+        sleep 3
+        # assign hugepages
+        sysctl -w vm.nr_hugepages=8192 && break
+    done
+    sleep 10
+
+    echo "Setup cpuset cgroup for host"
+    sudo cset set -c 0,4 -s system
+    sudo cset proc -m -f root -t system
+    sudo cset proc -k -f root -t system --force
+
+    echo "Setup cpumask"
+    for i in /sys/devices/virtual/workqueue/*/cpumask; do
+        sudo sh -c "echo 001 > $i"
+    done;
+
+    echo "Setup interrupt affinity"
+    for i in $(sed -n -e 's/ \([0-9]\+\):.*vfio.*/\1/p' /proc/interrupts); do
+        sudo sh -c "echo 0,4 > /proc/irq/$i/smp_affinity_list"
+    done
+
+    echo "Set the CPU frequency governor to performance"
+    for f in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
+        echo performance >$f
+    done
+}
+
+release() {
+    echo "Restore system"
+    # irq
+    for i in $(sed -n -e 's/ \([0-9]\+\):.*vfio.*/\1/p' /proc/interrupts); do
+        sudo sh -c "echo ff > /proc/irq/$i/smp_affinity"
+    done
+    # cpumask
+    for i in /sys/devices/virtual/workqueue/*/cpumask; do
+        sudo sh -c "echo ff > $i"
+    done;
+    # cpuset
+    sudo cset set -d system &>/dev/null
+
+    for f in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
+        echo powersave >$f
+    done
+
+    systemctl stop vm-usb-helper
+    sysctl -w vm.nr_hugepages=0
+}
+
 if [ "$1" == "win10" ]; then
     if [ "$2" == "prepare" ]; then
-        systemctl start vm-usb-helper
+        prepare
-        # defrag ram
-        echo 1 > /proc/sys/vm/compact_memory
-        for _ in $(seq 5); do
-            sleep 3
-            # assign hugepages
-            sysctl -w vm.nr_hugepages=8192 && break
-        done
-        sleep 10
     fi
     if [ "$2" == "release" ]; then
-        systemctl stop vm-usb-helper
+        release
-        sysctl -w vm.nr_hugepages=0
     fi
 fi

roles/win10/files/win10.xml

@@ -73,8 +73,9 @@
     <timer name='tsc' present='yes' mode='native'/>
   </clock>
   <on_poweroff>destroy</on_poweroff>
-  <on_reboot>restart</on_reboot>
+  <!-- Because of the reset bug, we cannot actually restart without restarting the host -->
-  <on_crash>restart</on_crash>
+  <on_reboot>destroy</on_reboot>
+  <on_crash>destroy</on_crash>
   <pm>
     <suspend-to-mem enabled='no'/>
     <suspend-to-disk enabled='no'/>
@@ -171,17 +172,18 @@
     </interface>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
+    <graphics type='spice' autoport='yes' defaultMode="insecure" listen="127.0.0.1" port="5900">
+      <listen type='address' address="127.0.0.1"/>
+    </graphics>
     <sound model='ich9'>
       <address type='pci' domain='0x0000' bus='0x02' slot='0x02' function='0x0'/>
     </sound>
-    <!--
     <hostdev mode='subsystem' type='pci' managed='yes'>
       <source>
         <address domain='0x0000' bus='0x00' slot='0x1f' function='0x6'/>
       </source>
       <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
     </hostdev>
-    -->
     <hostdev mode='subsystem' type='pci' managed='yes'>
       <source>
         <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
@@ -215,6 +217,7 @@
     <qemu:arg value='input-linux,id=kbd1,evdev=/dev/input/by-path/platform-i8042-serio-0-event-kbd,grab_all=off,repeat=on'/>
     <!-- audio passthrough -->
     <qemu:arg value='-audiodev'/>
-    <qemu:arg value='pa,id=pa1,server=/run/user/1000/pulse/native'/>
+    <qemu:arg value="driver=pa,id=hda,server=/run/user/1000/pulse/native,out.buffer-length=2000,timer-period=1000"/>
+    <!-- <qemu:arg value="driver=pa,id=hda,server=127.0.0.1,out.buffer-length=2000,timer-period=1000"/> -->
   </qemu:commandline>
 </domain>

roles/win10/tasks/main.yml

@@ -89,11 +89,18 @@
     dest: /etc/libvirt/hooks/qemu
     mode: '755'
 
-- name: configure systemd CPUAffinity
+# - name: configure systemd CPUAffinity
+#   lineinfile:
+#     path: /etc/systemd/system.conf
+#     regexp: '^#?CPUAffinity'
+#     line: 'CPUAffinity=0 4'
+
+- name: configure pulseaudio tcp socket
   lineinfile:
-    path: /etc/systemd/system.conf
+    path: /etc/pulse/default.pa
-    regexp: '^#?CPUAffinity'
+    regexp: '^#?load-module module-native-protocol-tcp'
-    line: 'CPUAffinity=0 4'
+    line: 'load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1 auth-anonymous=1'
+
 
 - name: enable libvirtd.socket
   systemd: