[PATCH v2 2/2] qemuxmlconftest: Add tests for the ACPI stripping hack on s390

Peter Krempa posted 2 patches 3 months ago
[PATCH v2 2/2] qemuxmlconftest: Add tests for the ACPI stripping hack on s390
Posted by Peter Krempa 3 months ago
Replace the 'misc-acpi' case by testing a bunch of architectures for how
ACPI is handled including a test for the s390 ACPI strip hack added in
previous commit.

The input files are adapted from the corresponding '-minimal.xml' files.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
---
 .../aarch64-noacpi-acpi.aarch64-latest.err    |  1 +
 tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml | 18 ++++++++
 .../misc-acpi.x86_64-latest.args              | 34 ---------------
 .../misc-acpi.x86_64-latest.xml               | 41 -------------------
 tests/qemuxmlconfdata/misc-acpi.xml           | 33 ---------------
 .../riscv64-virt-acpi.riscv64-latest.args     | 33 +++++++++++++++
 .../riscv64-virt-acpi.riscv64-latest.xml      | 36 ++++++++++++++++
 tests/qemuxmlconfdata/riscv64-virt-acpi.xml   | 15 +++++++
 ...s390x-ccw-acpi.s390x-latest.abi-update.err |  1 +
 .../s390x-ccw-acpi.s390x-latest.args          | 32 +++++++++++++++
 .../s390x-ccw-acpi.s390x-latest.xml           | 27 ++++++++++++
 tests/qemuxmlconfdata/s390x-ccw-acpi.xml      | 15 +++++++
 tests/qemuxmlconftest.c                       | 18 +++++++-
 13 files changed, 195 insertions(+), 109 deletions(-)
 create mode 100644 tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err
 create mode 100644 tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml
 delete mode 100644 tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args
 delete mode 100644 tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml
 delete mode 100644 tests/qemuxmlconfdata/misc-acpi.xml
 create mode 100644 tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args
 create mode 100644 tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml
 create mode 100644 tests/qemuxmlconfdata/riscv64-virt-acpi.xml
 create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err
 create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args
 create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml
 create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.xml

diff --git a/tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err
new file mode 100644
index 0000000000..5f379d56ce
--- /dev/null
+++ b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err
@@ -0,0 +1 @@
+unsupported configuration: machine type 'borzoi' does not support ACPI
diff --git a/tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml
new file mode 100644
index 0000000000..10dbeabd6d
--- /dev/null
+++ b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml
@@ -0,0 +1,18 @@
+<domain type='kvm'>
+  <name>aarch64test</name>
+  <uuid>6ba410c5-1e5c-4d57-bee7-2228e7ffa32f</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <!-- machine type doesn't matter as long as it has no ACPI -->
+    <type arch='aarch64' machine='borzoi'>hvm</type>
+  </os>
+  <features>
+    <acpi/>
+  </features>
+  <cpu mode='host-passthrough'/>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args b/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args
deleted file mode 100644
index c4e09c0af2..0000000000
--- a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args
+++ /dev/null
@@ -1,34 +0,0 @@
-LC_ALL=C \
-PATH=/bin \
-HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1 \
-USER=test \
-LOGNAME=test \
-XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.local/share \
-XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.cache \
-XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
-/usr/bin/qemu-system-x86_64 \
--name guest=QEMUGuest1,debug-threads=on \
--S \
--object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-QEMUGuest1/master-key.aes"}' \
--machine pc,usb=off,dump-guest-core=off,memory-backend=pc.ram,acpi=on \
--accel tcg \
--cpu qemu64 \
--m size=219136k \
--object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":224395264}' \
--overcommit mem-lock=off \
--smp 1,sockets=1,cores=1,threads=1 \
--uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
--display none \
--no-user-config \
--nodefaults \
--chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
--mon chardev=charmonitor,id=monitor,mode=control \
--rtc base=utc \
--no-shutdown \
--boot strict=on \
--device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
--blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","read-only":false}' \
--device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-storage","id":"ide0-0-0","bootindex":1}' \
--audiodev '{"id":"audio1","driver":"none"}' \
--sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--msg timestamp=on
diff --git a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml b/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml
deleted file mode 100644
index 176926bb60..0000000000
--- a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<domain type='qemu'>
-  <name>QEMUGuest1</name>
-  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
-  <memory unit='KiB'>219136</memory>
-  <currentMemory unit='KiB'>219136</currentMemory>
-  <vcpu placement='static'>1</vcpu>
-  <os>
-    <type arch='x86_64' machine='pc'>hvm</type>
-    <boot dev='hd'/>
-  </os>
-  <features>
-    <acpi/>
-  </features>
-  <cpu mode='custom' match='exact' check='none'>
-    <model fallback='forbid'>qemu64</model>
-  </cpu>
-  <clock offset='utc'/>
-  <on_poweroff>destroy</on_poweroff>
-  <on_reboot>restart</on_reboot>
-  <on_crash>destroy</on_crash>
-  <devices>
-    <emulator>/usr/bin/qemu-system-x86_64</emulator>
-    <disk type='block' device='disk'>
-      <driver name='qemu' type='raw'/>
-      <source dev='/dev/HostVG/QEMUGuest1'/>
-      <target dev='hda' bus='ide'/>
-      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
-    </disk>
-    <controller type='usb' index='0' model='piix3-uhci'>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
-    </controller>
-    <controller type='ide' index='0'>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
-    </controller>
-    <controller type='pci' index='0' model='pci-root'/>
-    <input type='mouse' bus='ps2'/>
-    <input type='keyboard' bus='ps2'/>
-    <audio id='1' type='none'/>
-    <memballoon model='none'/>
-  </devices>
-</domain>
diff --git a/tests/qemuxmlconfdata/misc-acpi.xml b/tests/qemuxmlconfdata/misc-acpi.xml
deleted file mode 100644
index 59fbe471ff..0000000000
--- a/tests/qemuxmlconfdata/misc-acpi.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<domain type='qemu'>
-  <name>QEMUGuest1</name>
-  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
-  <memory unit='KiB'>219136</memory>
-  <currentMemory unit='KiB'>219136</currentMemory>
-  <vcpu placement='static'>1</vcpu>
-  <os>
-    <type arch='x86_64' machine='pc'>hvm</type>
-    <boot dev='hd'/>
-  </os>
-  <features>
-    <acpi/>
-  </features>
-  <clock offset='utc'/>
-  <on_poweroff>destroy</on_poweroff>
-  <on_reboot>restart</on_reboot>
-  <on_crash>destroy</on_crash>
-  <devices>
-    <emulator>/usr/bin/qemu-system-x86_64</emulator>
-    <disk type='block' device='disk'>
-      <driver name='qemu' type='raw'/>
-      <source dev='/dev/HostVG/QEMUGuest1'/>
-      <target dev='hda' bus='ide'/>
-      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
-    </disk>
-    <controller type='usb' index='0'/>
-    <controller type='ide' index='0'/>
-    <controller type='pci' index='0' model='pci-root'/>
-    <input type='mouse' bus='ps2'/>
-    <input type='keyboard' bus='ps2'/>
-    <memballoon model='none'/>
-  </devices>
-</domain>
diff --git a/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args
new file mode 100644
index 0000000000..fcb80b009e
--- /dev/null
+++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args
@@ -0,0 +1,33 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-guest \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-guest/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-guest/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-guest/.config \
+/usr/bin/qemu-system-riscv64 \
+-name guest=guest,debug-threads=on \
+-S \
+-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-guest/master-key.aes"}' \
+-machine virt,usb=off,dump-guest-core=off,memory-backend=riscv_virt_board.ram \
+-accel tcg \
+-m size=4194304k \
+-object '{"qom-type":"memory-backend-ram","id":"riscv_virt_board.ram","size":4294967296}' \
+-overcommit mem-lock=off \
+-smp 4,sockets=4,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-audiodev '{"id":"audio1","driver":"none"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.1","addr":"0x0"}' \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml
new file mode 100644
index 0000000000..075708df9c
--- /dev/null
+++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml
@@ -0,0 +1,36 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>4194304</memory>
+  <currentMemory unit='KiB'>4194304</currentMemory>
+  <vcpu placement='static'>4</vcpu>
+  <os>
+    <type arch='riscv64' machine='virt'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <acpi/>
+  </features>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-riscv64</emulator>
+    <controller type='pci' index='0' model='pcie-root'/>
+    <controller type='pci' index='1' model='pcie-root-port'>
+      <model name='pcie-root-port'/>
+      <target chassis='1' port='0x8'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
+    </controller>
+    <controller type='pci' index='2' model='pcie-root-port'>
+      <model name='pcie-root-port'/>
+      <target chassis='2' port='0x9'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <audio id='1' type='none'/>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconfdata/riscv64-virt-acpi.xml b/tests/qemuxmlconfdata/riscv64-virt-acpi.xml
new file mode 100644
index 0000000000..72fc0d8e1c
--- /dev/null
+++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.xml
@@ -0,0 +1,15 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory>4194304</memory>
+  <vcpu>4</vcpu>
+  <os>
+    <type arch='riscv64' machine='virt'>hvm</type>
+  </os>
+  <features>
+    <acpi/>
+  </features>
+  <devices>
+    <emulator>/usr/bin/qemu-system-riscv64</emulator>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err
new file mode 100644
index 0000000000..4ca9af1de0
--- /dev/null
+++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err
@@ -0,0 +1 @@
+unsupported configuration: machine type 's390-ccw-virtio' does not support ACPI
diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args
new file mode 100644
index 0000000000..84098e580e
--- /dev/null
+++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args
@@ -0,0 +1,32 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-guest \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-guest/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-guest/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-guest/.config \
+/usr/bin/qemu-system-s390x \
+-name guest=guest,debug-threads=on \
+-S \
+-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-guest/master-key.aes"}' \
+-machine s390-ccw-virtio,usb=off,dump-guest-core=off,memory-backend=s390.ram \
+-accel tcg \
+-cpu qemu \
+-m size=4194304k \
+-object '{"qom-type":"memory-backend-ram","id":"s390.ram","size":4294967296}' \
+-overcommit mem-lock=off \
+-smp 4,sockets=4,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-audiodev '{"id":"audio1","driver":"none"}' \
+-device '{"driver":"virtio-balloon-ccw","id":"balloon0","devno":"fe.0.0000"}' \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml
new file mode 100644
index 0000000000..df8e578212
--- /dev/null
+++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml
@@ -0,0 +1,27 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>4194304</memory>
+  <currentMemory unit='KiB'>4194304</currentMemory>
+  <vcpu placement='static'>4</vcpu>
+  <os>
+    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <cpu mode='custom' match='exact' check='none'>
+    <model fallback='forbid'>qemu</model>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-s390x</emulator>
+    <controller type='pci' index='0' model='pci-root'/>
+    <audio id='1' type='none'/>
+    <memballoon model='virtio'>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
+    </memballoon>
+    <panic model='s390'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.xml b/tests/qemuxmlconfdata/s390x-ccw-acpi.xml
new file mode 100644
index 0000000000..b7be060c66
--- /dev/null
+++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.xml
@@ -0,0 +1,15 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory>4194304</memory>
+  <vcpu>4</vcpu>
+  <features>
+    <acpi/>
+  </features>
+  <os>
+    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-s390x</emulator>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconftest.c b/tests/qemuxmlconftest.c
index 4fccc06fcd..8aa8efea13 100644
--- a/tests/qemuxmlconftest.c
+++ b/tests/qemuxmlconftest.c
@@ -1732,7 +1732,23 @@ mymain(void)

     DO_TEST_CAPS_LATEST("input-usbmouse");
     DO_TEST_CAPS_LATEST("input-usbtablet");
-    DO_TEST_CAPS_LATEST("misc-acpi");
+
+    /* tests for ACPI support handling:
+     *  - existing positive test cases enabling ACPI for aarch64/x86_64/loongarch:
+     *     - firmware-manual-efi-acpi-q35
+     *     - firmware-manual-efi-acpi-aarch64
+     *     - firmware-auto-efi-loongarch64
+     *
+     *  - negative case for aarch64 with 'borzoi' machine not supporting ACPI
+     *
+     *  - s390x has hack to strip ACPI to preserve migration of old configs,
+     *    but should produce error when ABI_UPDATE is requested
+     */
+    DO_TEST_CAPS_ARCH_LATEST_PARSE_ERROR("aarch64-noacpi-acpi", "aarch64");
+    DO_TEST_CAPS_ARCH_LATEST("riscv64-virt-acpi", "riscv64");
+    DO_TEST_CAPS_ARCH_LATEST("s390x-ccw-acpi", "s390x");
+    DO_TEST_CAPS_ARCH_LATEST_ABI_UPDATE_PARSE_ERROR("s390x-ccw-acpi", "s390x");
+
     DO_TEST_CAPS_LATEST("misc-disable-s3");
     DO_TEST_CAPS_LATEST("misc-disable-suspends");
     DO_TEST_CAPS_LATEST("misc-enable-s4");
-- 
2.45.2
Re: [PATCH v2 2/2] qemuxmlconftest: Add tests for the ACPI stripping hack on s390
Posted by Boris Fiuczynski 2 months, 4 weeks ago
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>

and tested.

On 8/1/24 3:52 PM, Peter Krempa wrote:
> Replace the 'misc-acpi' case by testing a bunch of architectures for how
> ACPI is handled including a test for the s390 ACPI strip hack added in
> previous commit.
> 
> The input files are adapted from the corresponding '-minimal.xml' files.
> 
> Signed-off-by: Peter Krempa <pkrempa@redhat.com>
> ---
>   .../aarch64-noacpi-acpi.aarch64-latest.err    |  1 +
>   tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml | 18 ++++++++
>   .../misc-acpi.x86_64-latest.args              | 34 ---------------
>   .../misc-acpi.x86_64-latest.xml               | 41 -------------------
>   tests/qemuxmlconfdata/misc-acpi.xml           | 33 ---------------
>   .../riscv64-virt-acpi.riscv64-latest.args     | 33 +++++++++++++++
>   .../riscv64-virt-acpi.riscv64-latest.xml      | 36 ++++++++++++++++
>   tests/qemuxmlconfdata/riscv64-virt-acpi.xml   | 15 +++++++
>   ...s390x-ccw-acpi.s390x-latest.abi-update.err |  1 +
>   .../s390x-ccw-acpi.s390x-latest.args          | 32 +++++++++++++++
>   .../s390x-ccw-acpi.s390x-latest.xml           | 27 ++++++++++++
>   tests/qemuxmlconfdata/s390x-ccw-acpi.xml      | 15 +++++++
>   tests/qemuxmlconftest.c                       | 18 +++++++-
>   13 files changed, 195 insertions(+), 109 deletions(-)
>   create mode 100644 tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err
>   create mode 100644 tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml
>   delete mode 100644 tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args
>   delete mode 100644 tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml
>   delete mode 100644 tests/qemuxmlconfdata/misc-acpi.xml
>   create mode 100644 tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args
>   create mode 100644 tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml
>   create mode 100644 tests/qemuxmlconfdata/riscv64-virt-acpi.xml
>   create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err
>   create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args
>   create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml
>   create mode 100644 tests/qemuxmlconfdata/s390x-ccw-acpi.xml
> 
> diff --git a/tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err
> new file mode 100644
> index 0000000000..5f379d56ce
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.aarch64-latest.err
> @@ -0,0 +1 @@
> +unsupported configuration: machine type 'borzoi' does not support ACPI
> diff --git a/tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml
> new file mode 100644
> index 0000000000..10dbeabd6d
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/aarch64-noacpi-acpi.xml
> @@ -0,0 +1,18 @@
> +<domain type='kvm'>
> +  <name>aarch64test</name>
> +  <uuid>6ba410c5-1e5c-4d57-bee7-2228e7ffa32f</uuid>
> +  <memory unit='KiB'>1048576</memory>
> +  <vcpu placement='static'>1</vcpu>
> +  <os>
> +    <!-- machine type doesn't matter as long as it has no ACPI -->
> +    <type arch='aarch64' machine='borzoi'>hvm</type>
> +  </os>
> +  <features>
> +    <acpi/>
> +  </features>
> +  <cpu mode='host-passthrough'/>
> +  <devices>
> +    <emulator>/usr/bin/qemu-system-aarch64</emulator>
> +    <memballoon model='none'/>
> +  </devices>
> +</domain>
> diff --git a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args b/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args
> deleted file mode 100644
> index c4e09c0af2..0000000000
> --- a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.args
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -LC_ALL=C \
> -PATH=/bin \
> -HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1 \
> -USER=test \
> -LOGNAME=test \
> -XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.local/share \
> -XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.cache \
> -XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
> -/usr/bin/qemu-system-x86_64 \
> --name guest=QEMUGuest1,debug-threads=on \
> --S \
> --object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-QEMUGuest1/master-key.aes"}' \
> --machine pc,usb=off,dump-guest-core=off,memory-backend=pc.ram,acpi=on \
> --accel tcg \
> --cpu qemu64 \
> --m size=219136k \
> --object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":224395264}' \
> --overcommit mem-lock=off \
> --smp 1,sockets=1,cores=1,threads=1 \
> --uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
> --display none \
> --no-user-config \
> --nodefaults \
> --chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
> --mon chardev=charmonitor,id=monitor,mode=control \
> --rtc base=utc \
> --no-shutdown \
> --boot strict=on \
> --device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
> --blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","read-only":false}' \
> --device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-storage","id":"ide0-0-0","bootindex":1}' \
> --audiodev '{"id":"audio1","driver":"none"}' \
> --sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
> --msg timestamp=on
> diff --git a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml b/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml
> deleted file mode 100644
> index 176926bb60..0000000000
> --- a/tests/qemuxmlconfdata/misc-acpi.x86_64-latest.xml
> +++ /dev/null
> @@ -1,41 +0,0 @@
> -<domain type='qemu'>
> -  <name>QEMUGuest1</name>
> -  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> -  <memory unit='KiB'>219136</memory>
> -  <currentMemory unit='KiB'>219136</currentMemory>
> -  <vcpu placement='static'>1</vcpu>
> -  <os>
> -    <type arch='x86_64' machine='pc'>hvm</type>
> -    <boot dev='hd'/>
> -  </os>
> -  <features>
> -    <acpi/>
> -  </features>
> -  <cpu mode='custom' match='exact' check='none'>
> -    <model fallback='forbid'>qemu64</model>
> -  </cpu>
> -  <clock offset='utc'/>
> -  <on_poweroff>destroy</on_poweroff>
> -  <on_reboot>restart</on_reboot>
> -  <on_crash>destroy</on_crash>
> -  <devices>
> -    <emulator>/usr/bin/qemu-system-x86_64</emulator>
> -    <disk type='block' device='disk'>
> -      <driver name='qemu' type='raw'/>
> -      <source dev='/dev/HostVG/QEMUGuest1'/>
> -      <target dev='hda' bus='ide'/>
> -      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> -    </disk>
> -    <controller type='usb' index='0' model='piix3-uhci'>
> -      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
> -    </controller>
> -    <controller type='ide' index='0'>
> -      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
> -    </controller>
> -    <controller type='pci' index='0' model='pci-root'/>
> -    <input type='mouse' bus='ps2'/>
> -    <input type='keyboard' bus='ps2'/>
> -    <audio id='1' type='none'/>
> -    <memballoon model='none'/>
> -  </devices>
> -</domain>
> diff --git a/tests/qemuxmlconfdata/misc-acpi.xml b/tests/qemuxmlconfdata/misc-acpi.xml
> deleted file mode 100644
> index 59fbe471ff..0000000000
> --- a/tests/qemuxmlconfdata/misc-acpi.xml
> +++ /dev/null
> @@ -1,33 +0,0 @@
> -<domain type='qemu'>
> -  <name>QEMUGuest1</name>
> -  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> -  <memory unit='KiB'>219136</memory>
> -  <currentMemory unit='KiB'>219136</currentMemory>
> -  <vcpu placement='static'>1</vcpu>
> -  <os>
> -    <type arch='x86_64' machine='pc'>hvm</type>
> -    <boot dev='hd'/>
> -  </os>
> -  <features>
> -    <acpi/>
> -  </features>
> -  <clock offset='utc'/>
> -  <on_poweroff>destroy</on_poweroff>
> -  <on_reboot>restart</on_reboot>
> -  <on_crash>destroy</on_crash>
> -  <devices>
> -    <emulator>/usr/bin/qemu-system-x86_64</emulator>
> -    <disk type='block' device='disk'>
> -      <driver name='qemu' type='raw'/>
> -      <source dev='/dev/HostVG/QEMUGuest1'/>
> -      <target dev='hda' bus='ide'/>
> -      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> -    </disk>
> -    <controller type='usb' index='0'/>
> -    <controller type='ide' index='0'/>
> -    <controller type='pci' index='0' model='pci-root'/>
> -    <input type='mouse' bus='ps2'/>
> -    <input type='keyboard' bus='ps2'/>
> -    <memballoon model='none'/>
> -  </devices>
> -</domain>
> diff --git a/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args
> new file mode 100644
> index 0000000000..fcb80b009e
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.args
> @@ -0,0 +1,33 @@
> +LC_ALL=C \
> +PATH=/bin \
> +HOME=/var/lib/libvirt/qemu/domain--1-guest \
> +USER=test \
> +LOGNAME=test \
> +XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-guest/.local/share \
> +XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-guest/.cache \
> +XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-guest/.config \
> +/usr/bin/qemu-system-riscv64 \
> +-name guest=guest,debug-threads=on \
> +-S \
> +-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-guest/master-key.aes"}' \
> +-machine virt,usb=off,dump-guest-core=off,memory-backend=riscv_virt_board.ram \
> +-accel tcg \
> +-m size=4194304k \
> +-object '{"qom-type":"memory-backend-ram","id":"riscv_virt_board.ram","size":4294967296}' \
> +-overcommit mem-lock=off \
> +-smp 4,sockets=4,cores=1,threads=1 \
> +-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
> +-display none \
> +-no-user-config \
> +-nodefaults \
> +-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
> +-mon chardev=charmonitor,id=monitor,mode=control \
> +-rtc base=utc \
> +-no-shutdown \
> +-boot strict=on \
> +-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
> +-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
> +-audiodev '{"id":"audio1","driver":"none"}' \
> +-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.1","addr":"0x0"}' \
> +-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
> +-msg timestamp=on
> diff --git a/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml
> new file mode 100644
> index 0000000000..075708df9c
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.riscv64-latest.xml
> @@ -0,0 +1,36 @@
> +<domain type='qemu'>
> +  <name>guest</name>
> +  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
> +  <memory unit='KiB'>4194304</memory>
> +  <currentMemory unit='KiB'>4194304</currentMemory>
> +  <vcpu placement='static'>4</vcpu>
> +  <os>
> +    <type arch='riscv64' machine='virt'>hvm</type>
> +    <boot dev='hd'/>
> +  </os>
> +  <features>
> +    <acpi/>
> +  </features>
> +  <clock offset='utc'/>
> +  <on_poweroff>destroy</on_poweroff>
> +  <on_reboot>restart</on_reboot>
> +  <on_crash>destroy</on_crash>
> +  <devices>
> +    <emulator>/usr/bin/qemu-system-riscv64</emulator>
> +    <controller type='pci' index='0' model='pcie-root'/>
> +    <controller type='pci' index='1' model='pcie-root-port'>
> +      <model name='pcie-root-port'/>
> +      <target chassis='1' port='0x8'/>
> +      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
> +    </controller>
> +    <controller type='pci' index='2' model='pcie-root-port'>
> +      <model name='pcie-root-port'/>
> +      <target chassis='2' port='0x9'/>
> +      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
> +    </controller>
> +    <audio id='1' type='none'/>
> +    <memballoon model='virtio'>
> +      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
> +    </memballoon>
> +  </devices>
> +</domain>
> diff --git a/tests/qemuxmlconfdata/riscv64-virt-acpi.xml b/tests/qemuxmlconfdata/riscv64-virt-acpi.xml
> new file mode 100644
> index 0000000000..72fc0d8e1c
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.xml
> @@ -0,0 +1,15 @@
> +<domain type='qemu'>
> +  <name>guest</name>
> +  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
> +  <memory>4194304</memory>
> +  <vcpu>4</vcpu>
> +  <os>
> +    <type arch='riscv64' machine='virt'>hvm</type>
> +  </os>
> +  <features>
> +    <acpi/>
> +  </features>
> +  <devices>
> +    <emulator>/usr/bin/qemu-system-riscv64</emulator>
> +  </devices>
> +</domain>
> diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err
> new file mode 100644
> index 0000000000..4ca9af1de0
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.abi-update.err
> @@ -0,0 +1 @@
> +unsupported configuration: machine type 's390-ccw-virtio' does not support ACPI
> diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args
> new file mode 100644
> index 0000000000..84098e580e
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.args
> @@ -0,0 +1,32 @@
> +LC_ALL=C \
> +PATH=/bin \
> +HOME=/var/lib/libvirt/qemu/domain--1-guest \
> +USER=test \
> +LOGNAME=test \
> +XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-guest/.local/share \
> +XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-guest/.cache \
> +XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-guest/.config \
> +/usr/bin/qemu-system-s390x \
> +-name guest=guest,debug-threads=on \
> +-S \
> +-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-guest/master-key.aes"}' \
> +-machine s390-ccw-virtio,usb=off,dump-guest-core=off,memory-backend=s390.ram \
> +-accel tcg \
> +-cpu qemu \
> +-m size=4194304k \
> +-object '{"qom-type":"memory-backend-ram","id":"s390.ram","size":4294967296}' \
> +-overcommit mem-lock=off \
> +-smp 4,sockets=4,cores=1,threads=1 \
> +-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
> +-display none \
> +-no-user-config \
> +-nodefaults \
> +-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
> +-mon chardev=charmonitor,id=monitor,mode=control \
> +-rtc base=utc \
> +-no-shutdown \
> +-boot strict=on \
> +-audiodev '{"id":"audio1","driver":"none"}' \
> +-device '{"driver":"virtio-balloon-ccw","id":"balloon0","devno":"fe.0.0000"}' \
> +-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
> +-msg timestamp=on
> diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml
> new file mode 100644
> index 0000000000..df8e578212
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.s390x-latest.xml
> @@ -0,0 +1,27 @@
> +<domain type='qemu'>
> +  <name>guest</name>
> +  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
> +  <memory unit='KiB'>4194304</memory>
> +  <currentMemory unit='KiB'>4194304</currentMemory>
> +  <vcpu placement='static'>4</vcpu>
> +  <os>
> +    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
> +    <boot dev='hd'/>
> +  </os>
> +  <cpu mode='custom' match='exact' check='none'>
> +    <model fallback='forbid'>qemu</model>
> +  </cpu>
> +  <clock offset='utc'/>
> +  <on_poweroff>destroy</on_poweroff>
> +  <on_reboot>restart</on_reboot>
> +  <on_crash>destroy</on_crash>
> +  <devices>
> +    <emulator>/usr/bin/qemu-system-s390x</emulator>
> +    <controller type='pci' index='0' model='pci-root'/>
> +    <audio id='1' type='none'/>
> +    <memballoon model='virtio'>
> +      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
> +    </memballoon>
> +    <panic model='s390'/>
> +  </devices>
> +</domain>
> diff --git a/tests/qemuxmlconfdata/s390x-ccw-acpi.xml b/tests/qemuxmlconfdata/s390x-ccw-acpi.xml
> new file mode 100644
> index 0000000000..b7be060c66
> --- /dev/null
> +++ b/tests/qemuxmlconfdata/s390x-ccw-acpi.xml
> @@ -0,0 +1,15 @@
> +<domain type='qemu'>
> +  <name>guest</name>
> +  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
> +  <memory>4194304</memory>
> +  <vcpu>4</vcpu>
> +  <features>
> +    <acpi/>
> +  </features>
> +  <os>
> +    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
> +  </os>
> +  <devices>
> +    <emulator>/usr/bin/qemu-system-s390x</emulator>
> +  </devices>
> +</domain>
> diff --git a/tests/qemuxmlconftest.c b/tests/qemuxmlconftest.c
> index 4fccc06fcd..8aa8efea13 100644
> --- a/tests/qemuxmlconftest.c
> +++ b/tests/qemuxmlconftest.c
> @@ -1732,7 +1732,23 @@ mymain(void)
> 
>       DO_TEST_CAPS_LATEST("input-usbmouse");
>       DO_TEST_CAPS_LATEST("input-usbtablet");
> -    DO_TEST_CAPS_LATEST("misc-acpi");
> +
> +    /* tests for ACPI support handling:
> +     *  - existing positive test cases enabling ACPI for aarch64/x86_64/loongarch:
> +     *     - firmware-manual-efi-acpi-q35
> +     *     - firmware-manual-efi-acpi-aarch64
> +     *     - firmware-auto-efi-loongarch64
> +     *
> +     *  - negative case for aarch64 with 'borzoi' machine not supporting ACPI
> +     *
> +     *  - s390x has hack to strip ACPI to preserve migration of old configs,
> +     *    but should produce error when ABI_UPDATE is requested
> +     */
> +    DO_TEST_CAPS_ARCH_LATEST_PARSE_ERROR("aarch64-noacpi-acpi", "aarch64");
> +    DO_TEST_CAPS_ARCH_LATEST("riscv64-virt-acpi", "riscv64");
> +    DO_TEST_CAPS_ARCH_LATEST("s390x-ccw-acpi", "s390x");
> +    DO_TEST_CAPS_ARCH_LATEST_ABI_UPDATE_PARSE_ERROR("s390x-ccw-acpi", "s390x");
> +
>       DO_TEST_CAPS_LATEST("misc-disable-s3");
>       DO_TEST_CAPS_LATEST("misc-disable-suspends");
>       DO_TEST_CAPS_LATEST("misc-enable-s4");

-- 
Mit freundlichen Grüßen/Kind regards
    Boris Fiuczynski

IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Wolfgang Wendt
Geschäftsführung: David Faller
Sitz der Gesellschaft: Böblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294
Re: [PATCH v2 2/2] qemuxmlconftest: Add tests for the ACPI stripping hack on s390
Posted by Andrea Bolognani 3 months ago
On Thu, Aug 01, 2024 at 03:52:58PM GMT, Peter Krempa wrote:
> +++ b/tests/qemuxmlconfdata/riscv64-virt-acpi.xml
> @@ -0,0 +1,15 @@
> +<domain type='qemu'>
> +  <name>guest</name>
> +  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
> +  <memory>4194304</memory>
> +  <vcpu>4</vcpu>
> +  <os>
> +    <type arch='riscv64' machine='virt'>hvm</type>
> +  </os>
> +  <features>
> +    <acpi/>
> +  </features>
> +  <devices>
> +    <emulator>/usr/bin/qemu-system-riscv64</emulator>
> +  </devices>
> +</domain>

This (and s390x-ccw-acpi) could still do with explicitly dropping the
memballoon IMO, but it's fine either way.

> +    /* tests for ACPI support handling:
> +     *  - existing positive test cases enabling ACPI for aarch64/x86_64/loongarch:
> +     *     - firmware-manual-efi-acpi-q35
> +     *     - firmware-manual-efi-acpi-aarch64
> +     *     - firmware-auto-efi-loongarch64
> +     *
> +     *  - negative case for aarch64 with 'borzoi' machine not supporting ACPI
> +     *
> +     *  - s390x has hack to strip ACPI to preserve migration of old configs,
> +     *    but should produce error when ABI_UPDATE is requested
> +     */
> +    DO_TEST_CAPS_ARCH_LATEST_PARSE_ERROR("aarch64-noacpi-acpi", "aarch64");
> +    DO_TEST_CAPS_ARCH_LATEST("riscv64-virt-acpi", "riscv64");
> +    DO_TEST_CAPS_ARCH_LATEST("s390x-ccw-acpi", "s390x");
> +    DO_TEST_CAPS_ARCH_LATEST_ABI_UPDATE_PARSE_ERROR("s390x-ccw-acpi", "s390x");

Oh, you managed to increase coverage while at the same time reducing
the number of additional files! And the comment is quite detailed and
useful. Very nice indeed :)

Reviewed-by: Andrea Bolognani <abologna@redhat.com>

-- 
Andrea Bolognani / Red Hat / Virtualization