[PATCH] spec: Do not disable some systemd units of newly split package
by Martin Kletzander
Since virtproxyd was split into libvirt-daemon-proxy package it can
happen that, in case a distribution has such systemd preset, when
installing this package, already pre-enabled and configured units like
-tls.socket and -tcp.socket will get disabled.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2210058
Fixes: 5358618b1cd0afc126aed313249bf2134731665f
Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com>
---
This is more like an RFC as I would really like to know what to really do in
this case. What happens, basically, is that if you have libvirt-daemon-9.0.0
and set up virtproxyd-tls.socket for example and then upgrade to anything newer,
then the package libvirt-daemon-proxy will get installed. The %post action
calls "%libvirt_daemon_systemd_post_inet virtproxyd" which calls "%systemd_post
with all virtproxyd units. What %systemd_post is supposed to do is reset units
to a preset state in the case of package installation, but not during upgrade.
However the libvirt-daemon-proxy package did not exist on the system before, so
this action is not an update, but an installation.
If no preset is mentioned for a unit then `systemctl preset` does not change
anything. However some distros might have a catch-all preset "disable *" for
some reason, I guess based on an example in the documentation, and there is no
way to override an already configured preset, you can only enable or disable a
unit in a preset.
That all means than it can happen that you enable virtproxyd-tcp.socket, for
example, then update your system and find that it is disabled. There are
various ways to deal with this, but I don't see any one that would 100% satisfy
me with regards to all the issues and at the same time could be implemented
"soon enough" given libvirt already had three releases with the
libvirt-daemon-proxy split.
libvirt.spec.in | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 1f77cd90b772..50f521b7ce88 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1592,7 +1592,13 @@ fi
%post daemon-proxy
%if %{with_modular_daemons}
-%libvirt_daemon_systemd_post_inet virtproxyd
+# Since this was split into a different package, a transparent update for the
+# virtproxyd units could actually disable an already configured ones
+# (e.g. virtproxyd-tls.socket) as %systemd_post runs `systemctl preset` if this
+# is an installation (and is skipped on update). So skip this step for those
+# that need an extra setup to work since they will most likely not be preset to
+# enabled, but that is up to the point of the distribution.
+%libvirt_daemon_systemd_post virtproxyd
%endif
%preun daemon-proxy
--
2.41.0
1 year, 4 months
- 4
- 16
[PATCH] qemu: Support removable for scsi disk
by Han Han
Allow //disk/target@removable for scsi disk devices, since QEMU has support
the removable attribute for scsi-hd device from v0.14.0[1].
[1]: 419e691f8e: scsi-disk: Allow overriding SCSI INQUIRY removable bit
Signed-off-by: Han Han <hhan(a)redhat.com>
---
docs/formatdomain.rst | 2 +-
src/conf/domain_validate.c | 5 +++--
src/qemu/qemu_command.c | 6 ++++--
...gs => disk-device-removable.x86_64-latest.args} | 14 +++++++++-----
...ice-removable.xml => disk-device-removable.xml} | 5 +++++
tests/qemuxml2argvtest.c | 2 +-
6 files changed, 23 insertions(+), 11 deletions(-)
rename tests/qemuxml2argvdata/{disk-usb-device-removable.x86_64-latest.args => disk-device-removable.x86_64-latest.args} (70%)
rename tests/qemuxml2argvdata/{disk-usb-device-removable.xml => disk-device-removable.xml} (80%)
diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index c3526439bf..676e4b9fd3 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -3094,7 +3094,7 @@ paravirtualized driver is specified via the ``disk`` element.
CDROM or Floppy disk), the value can be either "open" or "closed", defaults
to "closed". NB, the value of ``tray`` could be updated while the domain is
running. The optional attribute ``removable`` sets the removable flag for USB
- disks, and its value can be either "on" or "off", defaulting to "off".
+ or SCSI disks, and its value can be either "on" or "off", defaulting to "off".
The optional attribute ``rotation_rate`` sets the rotation rate of the
storage for disks on a SCSI, IDE, or SATA bus. Values in the range 1025 to
65534 are used to indicate rotational media speed in revolutions per minute.
diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c
index 80d6a2ffd9..e7122f6297 100644
--- a/src/conf/domain_validate.c
+++ b/src/conf/domain_validate.c
@@ -881,9 +881,10 @@ virDomainDiskDefValidate(const virDomainDef *def,
}
if (disk->removable != VIR_TRISTATE_SWITCH_ABSENT &&
- disk->bus != VIR_DOMAIN_DISK_BUS_USB) {
+ disk->bus != VIR_DOMAIN_DISK_BUS_USB &&
+ !(disk->bus == VIR_DOMAIN_DISK_BUS_SCSI && disk->device == VIR_DOMAIN_DISK_DEVICE_DISK)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
- _("removable is only valid for usb disks"));
+ _("removable is only valid for usb or scsi disks"));
return -1;
}
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 72363238b8..5ec912ddee 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1781,10 +1781,12 @@ qemuBuildDiskDeviceProps(const virDomainDef *def,
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
driver = "scsi-block";
} else {
- if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
+ if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
driver = "scsi-cd";
- else
+ } else {
driver = "scsi-hd";
+ removable = disk->removable;
+ }
/* qemu historically used the name of -drive as one of the device
* ids in the Vital Product Data Device Identification page if
diff --git a/tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args b/tests/qemuxml2argvdata/disk-device-removable.x86_64-latest.args
similarity index 70%
rename from tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args
rename to tests/qemuxml2argvdata/disk-device-removable.x86_64-latest.args
index c5bfd8e8e0..106f7b9ce2 100644
--- a/tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-device-removable.x86_64-latest.args
@@ -27,13 +27,17 @@ XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
-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-2-storage","auto-read-only":true,"discard":"unmap"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
+-blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1}' \
+-blockdev '{"driver":"file","filename":"/tmp/usbdisk.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
--blockdev '{"driver":"file","filename":"/tmp/usbdisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
+-device '{"driver":"usb-storage","bus":"usb.0","port":"1","drive":"libvirt-2-format","id":"usb-disk0","removable":true}' \
+-blockdev '{"driver":"file","filename":"/tmp/scsidisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device '{"driver":"usb-storage","bus":"usb.0","port":"1","drive":"libvirt-1-format","id":"usb-disk0","removable":true}' \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":1,"device_id":"drive-scsi0-0-0-1","drive":"libvirt-1-format","id":"scsi0-0-0-1","removable":true}' \
-audiodev '{"id":"audio1","driver":"none"}' \
--device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-usb-device-removable.xml b/tests/qemuxml2argvdata/disk-device-removable.xml
similarity index 80%
rename from tests/qemuxml2argvdata/disk-usb-device-removable.xml
rename to tests/qemuxml2argvdata/disk-device-removable.xml
index 927a8e8b3e..9400c84863 100644
--- a/tests/qemuxml2argvdata/disk-usb-device-removable.xml
+++ b/tests/qemuxml2argvdata/disk-device-removable.xml
@@ -22,6 +22,11 @@
<source file='/tmp/usbdisk.img'/>
<target dev='sda' bus='usb' removable='on'/>
</disk>
+ <disk type='file' device='disk'>
+ <source file='/tmp/scsidisk.img'/>
+ <target dev='sdb' bus='scsi' removable='on'/>
+ </disk>
+ <controller type='scsi' index='0' model='virtio-scsi'/>
<memballoon model='virtio'/>
</devices>
</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index d914d8cbea..d6a9ab865d 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1227,7 +1227,7 @@ mymain(void)
DO_TEST_CAPS_LATEST_PARSE_ERROR("disk-device-lun-type-invalid");
DO_TEST_CAPS_LATEST_PARSE_ERROR("disk-attaching-partition-nosupport");
DO_TEST_CAPS_LATEST("disk-usb-device");
- DO_TEST_CAPS_LATEST("disk-usb-device-removable");
+ DO_TEST_CAPS_LATEST("disk-device-removable");
DO_TEST_CAPS_LATEST_PARSE_ERROR("disk-usb-pci");
DO_TEST_CAPS_LATEST("disk-scsi");
DO_TEST_CAPS_LATEST("disk-scsi-device-auto");
--
2.40.1
1 year, 4 months
- 2
- 4
[PATCH v2 0/5] Migration deprecated parts
by Juan Quintela
On this v2:
- dropped -incoming <uri> deprecation
Paolo came with a better solution using keyvalues.
- skipped field is already ready for next pull request, so dropped.
- dropped the RFC bits, nermal PATCH.
- Assessed all the review comments.
- Added indentation of migration.json.
- Used the documentation pointer to substitute block migration.
Please review.
[v1]
Hi this series describe the migration parts that have to be deprecated.
- It is an rfc because I doubt that I did the deprecation process right. Hello Markus O:-)
- skipped field: It is older than me, I have never know what it stands
for. As far as I know it has always been zero.
- inc/blk migrate command options. They are only used by block
migration (that I deprecate on the following patch). And they are really bad.
grep must_remove_block_options.
- block migration. block jobs, whatever they are called this week are
way more flexible. Current code works, but we broke it here and
there, and really nobody has stand up to maintain it. It is quite
contained and can be left there. Is anyone really using it?
- old compression method. It don't work. See last try from Lukas to
make a test that works reliabely. I failed with the same task years
ago. It is really slow, and if compression is good for you, multifd
+ zlib is going to perform/compress way more.
I don't know what to do with this code, really.
* Remove it for this release? It don't work, and haven't work
reliabely in quite a few time.
* Deprecate it and remove in another couple of releases, i.e. normal
deprecation.
* Ideas?
- -incoming <uri>
if you need to set parameters (multifd cames to mind, and preempt has
the same problem), you really needs to use defer. So what should we do here?
This part is not urget, because management apps have a working
option that are already using "defer", and the code simplifacation
if we remove it is not so big. So we can leave it until 9.0 or
whatever we think fit.
What do you think?
Later, Juan.
Juan Quintela (5):
migration: Use proper indentation for migration.json
migration: migrate 'inc' command option is deprecated.
migration: migrate 'blk' command option is deprecated.
migration: Deprecate block migration
migration: Deprecate old compression method
docs/about/deprecated.rst | 32 ++++++
qapi/migration.json | 203 ++++++++++++++++++++++++--------------
migration/block.c | 3 +
migration/migration.c | 11 +++
migration/options.c | 22 ++++-
5 files changed, 198 insertions(+), 73 deletions(-)
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--
2.40.1
1 year, 4 months
- 4
- 10
[libvirt PATCH v2 0/4] Enable asynchronous teardown
by Boris Fiuczynski
Update capabilities for QEMU 8.1 on s390x, add a new capability
async-teardown and make use of it when running on s390x hosts to improve
memory reclaiming.
v2:
- switch to use on/off on the QEMU command line
- added configuration management of the feature to the domain XML
Boris Fiuczynski (3):
qemu: add run-with async-teardown capability
qemu: allow use of async teardown in domain
qemu: enable asynchronous teardown on s390x hosts
Shalini Chellathurai Saroja (1):
tests: add capabilities for QEMU 8.1.0 on s390x
docs/formatdomain.rst | 6 +
src/conf/domain_conf.c | 22 +
src/conf/domain_conf.h | 1 +
src/conf/schemas/domaincommon.rng | 9 +
src/qemu/qemu_capabilities.c | 2 +
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 20 +
src/qemu/qemu_domain.c | 14 +
src/qemu/qemu_validate.c | 9 +
tests/domaincapsdata/qemu_8.1.0.s390x.xml | 285 +
.../caps_8.1.0_s390x.replies | 34594 ++++++++++++++++
.../qemucapabilitiesdata/caps_8.1.0_s390x.xml | 3719 ++
.../caps_8.1.0_x86_64.xml | 1 +
.../qemuhotplug-base-ccw-live+ccw-virtio.xml | 2 +-
...ith-2-ccw-virtio+ccw-virtio-1-explicit.xml | 1 -
...with-2-ccw-virtio+ccw-virtio-1-reverse.xml | 2 +-
...otplug-base-ccw-live-with-2-ccw-virtio.xml | 2 +-
...-with-ccw-virtio+ccw-virtio-2-explicit.xml | 2 +-
...-ccw-live-with-ccw-virtio+ccw-virtio-2.xml | 2 +-
...uhotplug-base-ccw-live-with-ccw-virtio.xml | 2 +-
.../qemuhotplug-base-ccw-live.xml | 2 +-
.../async-teardown.x86_64-latest.args | 37 +
tests/qemuxml2argvdata/async-teardown.xml | 31 +
.../balloon-ccw-deflate.s390x-latest.args | 3 +-
.../console-sclp.s390x-latest.args | 7 +-
.../console-virtio-ccw.s390x-latest.args | 9 +-
.../cpu-s390-features.s390x-latest.args | 1 +
.../cpu-s390-zEC12.s390x-latest.args | 1 +
...default-video-type-s390x.s390x-latest.args | 5 +-
.../disk-error-policy-s390x.s390x-latest.args | 7 +-
.../disk-virtio-ccw-many.s390x-latest.args | 11 +-
.../disk-virtio-ccw.s390x-latest.args | 7 +-
.../disk-virtio-s390-zpci.s390x-latest.args | 7 +-
.../fs9p-ccw.s390x-latest.args | 11 +-
...tdev-scsi-vhost-scsi-ccw.s390x-latest.args | 9 +-
...tdev-subsys-mdev-vfio-ap.s390x-latest.args | 5 +-
...ubsys-mdev-vfio-ccw-boot.s390x-latest.args | 5 +-
...dev-subsys-mdev-vfio-ccw.s390x-latest.args | 5 +-
...o-zpci-autogenerate-fids.s390x-latest.args | 11 +-
...o-zpci-autogenerate-uids.s390x-latest.args | 11 +-
...v-vfio-zpci-autogenerate.s390x-latest.args | 7 +-
...dev-vfio-zpci-boundaries.s390x-latest.args | 15 +-
...vfio-zpci-ccw-memballoon.s390x-latest.args | 9 +-
...io-zpci-multidomain-many.s390x-latest.args | 35 +-
.../hostdev-vfio-zpci.s390x-latest.args | 7 +-
.../input-virtio-ccw.s390x-latest.args | 11 +-
...othreads-virtio-scsi-ccw.s390x-latest.args | 9 +-
.../launch-security-s390-pv.s390x-latest.args | 7 +-
...chine-aeskeywrap-off-cap.s390x-latest.args | 3 +-
...hine-aeskeywrap-off-caps.s390x-latest.args | 3 +-
...achine-aeskeywrap-on-cap.s390x-latest.args | 3 +-
...chine-aeskeywrap-on-caps.s390x-latest.args | 3 +-
...chine-deakeywrap-off-cap.s390x-latest.args | 3 +-
...hine-deakeywrap-off-caps.s390x-latest.args | 3 +-
...achine-deakeywrap-on-cap.s390x-latest.args | 3 +-
...chine-deakeywrap-on-caps.s390x-latest.args | 3 +-
...achine-keywrap-none-caps.s390x-latest.args | 3 +-
.../machine-keywrap-none.s390x-latest.args | 3 +-
...machine-loadparm-hostdev.s390x-latest.args | 5 +-
...multiple-disks-nets-s390.s390x-latest.args | 15 +-
...achine-loadparm-net-s390.s390x-latest.args | 7 +-
.../machine-loadparm-s390.s390x-latest.args | 5 +-
.../net-virtio-ccw.s390x-latest.args | 11 +-
...low-bogus-usb-controller.s390x-latest.args | 11 +-
...390-allow-bogus-usb-none.s390x-latest.args | 11 +-
...0-async-teardown-disabled.s390x-6.0.0.args | 35 +
...-async-teardown-disabled.s390x-latest.args | 36 +
.../s390-async-teardown-disabled.xml | 24 +
...async-teardown-no-attrib.s390x-latest.args | 36 +
.../s390-async-teardown-no-attrib.xml | 24 +
.../s390-async-teardown.s390x-6.0.0.err | 1 +
.../s390-async-teardown.s390x-latest.args | 36 +
.../qemuxml2argvdata/s390-async-teardown.xml | 24 +
...t-cpu-kvm-ccw-virtio-2.7.s390x-latest.args | 3 +-
...t-cpu-kvm-ccw-virtio-4.2.s390x-latest.args | 5 +-
...t-cpu-tcg-ccw-virtio-2.7.s390x-latest.args | 3 +-
...t-cpu-tcg-ccw-virtio-4.2.s390x-latest.args | 3 +-
...no-async-teardown-autogen.s390x-6.0.0.args | 32 +
...o-async-teardown-autogen.s390x-latest.args | 33 +
.../s390-no-async-teardown-autogen.xml | 18 +
.../s390-panic-missing.s390x-latest.args | 7 +-
.../s390-panic-no-address.s390x-latest.args | 7 +-
.../s390-serial-2.s390x-latest.args | 5 +-
.../s390-serial-console.s390x-latest.args | 3 +-
.../s390-serial.s390x-latest.args | 3 +-
.../s390x-ccw-graphics.s390x-latest.args | 23 +-
.../s390x-ccw-headless.s390x-latest.args | 17 +-
.../vhost-vsock-ccw-auto.s390x-latest.args | 7 +-
.../vhost-vsock-ccw-iommu.s390x-latest.args | 7 +-
.../vhost-vsock-ccw-iommu.xml | 3 +
.../vhost-vsock-ccw.s390x-latest.args | 7 +-
.../video-virtio-gpu-ccw.s390x-latest.args | 9 +-
.../virtio-rng-ccw.s390x-latest.args | 11 +-
.../watchdog-diag288.s390x-latest.args | 7 +-
tests/qemuxml2argvtest.c | 9 +
.../async-teardown.x86_64-latest.xml | 44 +
.../default-video-type-s390x.s390x-latest.xml | 3 +
.../disk-virtio-s390-zpci.s390x-latest.xml | 3 +
...stdev-scsi-vhost-scsi-ccw.s390x-latest.xml | 3 +
...stdev-subsys-mdev-vfio-ap.s390x-latest.xml | 3 +
...subsys-mdev-vfio-ccw-boot.s390x-latest.xml | 3 +
...tdev-subsys-mdev-vfio-ccw.s390x-latest.xml | 3 +
...io-zpci-autogenerate-fids.s390x-latest.xml | 3 +
...io-zpci-autogenerate-uids.s390x-latest.xml | 3 +
...ev-vfio-zpci-autogenerate.s390x-latest.xml | 3 +
...tdev-vfio-zpci-boundaries.s390x-latest.xml | 3 +
...-vfio-zpci-ccw-memballoon.s390x-latest.xml | 3 +
...fio-zpci-multidomain-many.s390x-latest.xml | 3 +
.../hostdev-vfio-zpci.s390x-latest.xml | 3 +
.../input-virtio-ccw.s390x-latest.xml | 3 +
...iothreads-disk-virtio-ccw.s390x-latest.xml | 3 +
...iothreads-virtio-scsi-ccw.s390x-latest.xml | 3 +
.../machine-loadparm-hostdev.s390x-latest.xml | 3 +
...-multiple-disks-nets-s390.s390x-latest.xml | 3 +
...90-async-teardown-disabled.s390x-6.0.0.xml | 36 +
...0-async-teardown-disabled.s390x-latest.xml | 36 +
...-async-teardown-no-attrib.s390x-latest.xml | 36 +
.../s390-async-teardown.s390x-latest.xml | 36 +
...lt-cpu-kvm-ccw-virtio-2.7.s390x-latest.xml | 3 +
...lt-cpu-kvm-ccw-virtio-4.2.s390x-latest.xml | 3 +
...lt-cpu-tcg-ccw-virtio-2.7.s390x-latest.xml | 3 +
...lt-cpu-tcg-ccw-virtio-4.2.s390x-latest.xml | 3 +
.../s390-defaultconsole.s390x-latest.xml | 3 +
...-no-async-teardown-autogen.s390x-6.0.0.xml | 25 +
...no-async-teardown-autogen.s390x-latest.xml | 28 +
.../s390-panic-missing.s390x-latest.xml | 3 +
.../s390-panic-no-address.s390x-latest.xml | 3 +
.../s390-panic.s390x-latest.xml | 3 +
.../s390-serial-2.s390x-latest.xml | 3 +
.../s390-serial-console.s390x-latest.xml | 3 +
.../s390-serial.s390x-latest.xml | 3 +
.../s390x-ccw-graphics.s390x-latest.xml | 3 +
.../s390x-ccw-headless.s390x-latest.xml | 3 +
.../vhost-vsock-ccw-auto.s390x-latest.xml | 3 +
.../vhost-vsock-ccw.s390x-latest.xml | 3 +
...video-virtio-gpu-ccw-auto.s390x-latest.xml | 3 +
.../video-virtio-gpu-ccw.s390x-latest.xml | 3 +
tests/qemuxml2xmltest.c | 8 +
138 files changed, 39671 insertions(+), 197 deletions(-)
create mode 100644 tests/domaincapsdata/qemu_8.1.0.s390x.xml
create mode 100644 tests/qemucapabilitiesdata/caps_8.1.0_s390x.replies
create mode 100644 tests/qemucapabilitiesdata/caps_8.1.0_s390x.xml
create mode 100644 tests/qemuxml2argvdata/async-teardown.x86_64-latest.args
create mode 100644 tests/qemuxml2argvdata/async-teardown.xml
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown-disabled.s390x-6.0.0.args
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown-disabled.s390x-latest.args
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown-disabled.xml
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown-no-attrib.s390x-latest.args
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown-no-attrib.xml
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown.s390x-6.0.0.err
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown.s390x-latest.args
create mode 100644 tests/qemuxml2argvdata/s390-async-teardown.xml
create mode 100644 tests/qemuxml2argvdata/s390-no-async-teardown-autogen.s390x-6.0.0.args
create mode 100644 tests/qemuxml2argvdata/s390-no-async-teardown-autogen.s390x-latest.args
create mode 100644 tests/qemuxml2argvdata/s390-no-async-teardown-autogen.xml
create mode 100644 tests/qemuxml2xmloutdata/async-teardown.x86_64-latest.xml
create mode 100644 tests/qemuxml2xmloutdata/s390-async-teardown-disabled.s390x-6.0.0.xml
create mode 100644 tests/qemuxml2xmloutdata/s390-async-teardown-disabled.s390x-latest.xml
create mode 100644 tests/qemuxml2xmloutdata/s390-async-teardown-no-attrib.s390x-latest.xml
create mode 100644 tests/qemuxml2xmloutdata/s390-async-teardown.s390x-latest.xml
create mode 100644 tests/qemuxml2xmloutdata/s390-no-async-teardown-autogen.s390x-6.0.0.xml
create mode 100644 tests/qemuxml2xmloutdata/s390-no-async-teardown-autogen.s390x-latest.xml
--
2.41.0
1 year, 4 months
- 4
- 11
[PATCH] os-posix: Allow 'chroot' via '-run-with' and deprecate the old '-chroot' option
by Thomas Huth
We recently introduced "-run-with" for options that influence the
runtime behavior of QEMU. This option has the big advantage that it
can group related options (so that it is easier for the users to spot
them) and that the options become introspectable via QMP this way.
So let's start moving more switches into this option group, starting
with "-chroot" now.
Signed-off-by: Thomas Huth <thuth(a)redhat.com>
---
docs/about/deprecated.rst | 5 +++++
os-posix.c | 35 ++++++++++++++++++++++++++++++++++-
util/async-teardown.c | 21 ---------------------
qemu-options.hx | 18 +++++++++++++-----
4 files changed, 52 insertions(+), 27 deletions(-)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 0743459862..1cf53b86ce 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -116,6 +116,11 @@ Use "whpx" (on Windows) or "hvf" (on macOS) instead.
Use ``-run-with async-teardown=on`` instead.
+``-chroot`` (since 8.1)
+'''''''''''''''''''''''
+
+Use ``-run-with chroot=dir`` instead.
+
``-singlestep`` (since 8.1)
'''''''''''''''''''''''''''
diff --git a/os-posix.c b/os-posix.c
index 90ea71725f..0ae1fb2347 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -38,6 +38,7 @@
#include "qemu/cutils.h"
#include "qemu/config-file.h"
#include "qemu/option.h"
+#include "qemu/module.h"
#ifdef CONFIG_LINUX
#include <sys/prctl.h>
@@ -148,6 +149,7 @@ int os_parse_cmd_args(int index, const char *optarg)
}
break;
case QEMU_OPTION_chroot:
+ warn_report("option is deprecated, use '-run-with chroot=...' instead");
chroot_dir = optarg;
break;
case QEMU_OPTION_daemonize:
@@ -158,18 +160,25 @@ int os_parse_cmd_args(int index, const char *optarg)
case QEMU_OPTION_asyncteardown:
init_async_teardown();
break;
+#endif
case QEMU_OPTION_run_with: {
+ const char *str;
QemuOpts *opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
optarg, false);
if (!opts) {
exit(1);
}
+#if defined(CONFIG_LINUX)
if (qemu_opt_get_bool(opts, "async-teardown", false)) {
init_async_teardown();
}
+#endif
+ str = qemu_opt_get(opts, "chroot");
+ if (str) {
+ chroot_dir = str;
+ }
break;
}
-#endif
default:
return -1;
}
@@ -348,3 +357,27 @@ int os_mlock(void)
return -ENOSYS;
#endif
}
+
+static QemuOptsList qemu_run_with_opts = {
+ .name = "run-with",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
+ .desc = {
+#if defined(CONFIG_LINUX)
+ {
+ .name = "async-teardown",
+ .type = QEMU_OPT_BOOL,
+ },
+#endif
+ {
+ .name = "chroot",
+ .type = QEMU_OPT_STRING,
+ },
+ { /* end of list */ }
+ },
+};
+
+static void register_teardown(void)
+{
+ qemu_add_opts(&qemu_run_with_opts);
+}
+opts_init(register_teardown);
diff --git a/util/async-teardown.c b/util/async-teardown.c
index 3ab19c8740..62cdeb0f20 100644
--- a/util/async-teardown.c
+++ b/util/async-teardown.c
@@ -12,9 +12,6 @@
*/
#include "qemu/osdep.h"
-#include "qemu/config-file.h"
-#include "qemu/option.h"
-#include "qemu/module.h"
#include <dirent.h>
#include <sys/prctl.h>
#include <sched.h>
@@ -147,21 +144,3 @@ void init_async_teardown(void)
clone(async_teardown_fn, new_stack_for_clone(), CLONE_VM, NULL);
sigprocmask(SIG_SETMASK, &old_signals, NULL);
}
-
-static QemuOptsList qemu_run_with_opts = {
- .name = "run-with",
- .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
- .desc = {
- {
- .name = "async-teardown",
- .type = QEMU_OPT_BOOL,
- },
- { /* end of list */ }
- },
-};
-
-static void register_teardown(void)
-{
- qemu_add_opts(&qemu_run_with_opts);
-}
-opts_init(register_teardown);
diff --git a/qemu-options.hx b/qemu-options.hx
index b57489d7ca..f49d4c0e3c 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4670,11 +4670,12 @@ ERST
#ifndef _WIN32
DEF("chroot", HAS_ARG, QEMU_OPTION_chroot, \
- "-chroot dir chroot to dir just before starting the VM\n",
+ "-chroot dir chroot to dir just before starting the VM (deprecated)\n",
QEMU_ARCH_ALL)
#endif
SRST
``-chroot dir``
+ Deprecated, use '-run-with chroot=...' instead.
Immediately before starting guest execution, chroot to the specified
directory. Especially useful in combination with -runas.
ERST
@@ -4861,13 +4862,16 @@ SRST
This option is deprecated and should no longer be used. The new option
``-run-with async-teardown=on`` is a replacement.
ERST
+#endif
+#ifdef CONFIG_POSIX
DEF("run-with", HAS_ARG, QEMU_OPTION_run_with,
- "-run-with async-teardown[=on|off]\n"
- " misc QEMU process lifecycle options\n"
- " async-teardown=on enables asynchronous teardown\n",
+ "-run-with [async-teardown=on|off][,chroot=dir]\n"
+ " Set miscellaneous QEMU process lifecycle options:\n"
+ " async-teardown=on enables asynchronous teardown (Linux only)\n"
+ " chroot=dir chroot to dir just before starting the VM\n",
QEMU_ARCH_ALL)
SRST
-``-run-with``
+``-run-with [async-teardown=on|off][,chroot=dir]``
Set QEMU process lifecycle options.
``async-teardown=on`` enables asynchronous teardown. A new process called
@@ -4880,6 +4884,10 @@ SRST
performed correctly. This only works if the cleanup process is not
forcefully killed with SIGKILL before the main QEMU process has
terminated completely.
+
+ ``chroot=dir`` can be used for doing a chroot to the specified directory
+ immediately before starting the guest execution. This is especially useful
+ in combination with -runas.
ERST
#endif
--
2.39.3
1 year, 4 months
- 4
- 4
[PATCH v6] vfio/pci: Propagate ACPI notifications to user-space via eventfd
by Grzegorz Jaszczyk
To allow pass-through devices receiving ACPI notifications, permit to
register ACPI notify handler (via VFIO_DEVICE_SET_IRQS) for a given
device. The handler role is to receive and propagate such ACPI
notifications to the user-space through the user provided eventfd. This
allows VMM to receive and propagate them further to the VM, where the
actual driver for pass-through device resides and can react to device
specific notifications accordingly.
The eventfd usage ensures VMM and device isolation: it allows to use a
dedicated channel associated with the device for such events, such that
the VMM has direct access.
Since the eventfd counter is used as ACPI notification value
placeholder, the eventfd signaling needs to be serialized in order to
not end up with notification values being coalesced. Therefore ACPI
notification values are buffered and signalized one by one, when the
previous notification value has been consumed.
Signed-off-by: Grzegorz Jaszczyk <jaz(a)semihalf.com>
---
Changelog v5..v6
- Get rid of #if IS_ENABLED(CONFIG_ACPI) from vfio_pci_intrs.c
- There is no need to keep vfio_acpi_notification struct definition in
header, make it private and move to cpi_notify.c
- Add lockdep_asserts in acpi_notification_dequeue
- notification_list_lock was not initialized which triggers some
warning with CONFIG_DEBUG_MUTEXES enabled (it was not logical error
since mentioned mutex was zeroed thanks to kzalloc it is just
DEBUG_MUTEXES performs extra checks and sets lock->magic).
- Change notification_lock from mutex to semaphore (notification_sem).
The logic was working fine with the mutex but enabling lockdep support
made me realize that the mutex has to be released by the same task
which acquires it and it is checked with lockdep enabled. Semaphore
does not have such a restriction.
- In order to correctly handle some sequences such as:
* user configures a notification eventfd
* a notification fires
* the user closes the eventfd without reading it, and then tries
to swap in a different eventfd ctx
separate the entire eventfd context together with notification_sem
from the main vfio_acpi_notification struct. Thanks to that entire,
separate eventfd ctx could be swapped leaving the previous eventfd ctx
untouched. The new eventfd has its separate notification_sem
initialized and will not depend on previous eventfd ctx. Additionally
when the last handle to old eventfd will be released and EPOLLHUP
triggered, old eventfd ctx will be cleaned-up.
- Together with the above add support for required EPOLLHUP handling.
- Add missing fput invocations.
- Move some common code into vfio_acpi_eventfd_init and use it during
registration and eventfd swapping.
- v5: https://patchwork.kernel.org/project/kvm/patch/20230609133950.2197552-1-j...
Changelog v4..v5
Address Alex Williamson's feedback:
- s/vfio_acpi_notify.{c,o}/acpi_notify.{c,o}
- Do not put acpi_notify to its own module but fold it into main
vfio.ko. Additionally select it from VFIO_PCI_CORE instead of VFIO_PCI.
- Cleanup acpi notify under igate mutex (in vfio_pci_core_close_device).
- Add extra check for ACPI companion in vfio_pci_get_irq_count and
extend vfio_pci_ioctl_get_irq_info.
- Drop acpi.h include - linux/vfio_acpi_notify.h includes it already.
- Send device check notification value for DATA_NONE and non-zero count
and for DATA_BOOL and non-zero count (as for loopback testing).
- Drop some redundant !acpi_notify->acpi_notify_trigger checks.
- Move some common code to new helper functions:
1) acpi_notification_dequeue
2) vfio_acpi_notify_cleanup and rename previous
vfio_acpi_notify_cleanup into vfio_remove_acpi_notify which uses it
- Add rate limited logging for dropped notifications.
- Move vdev->acpi_notification pointer cleanup to the
vfio_acpi_notify_cleanup function this also fixes two bigger issues
caught by Alex.
- Allow the eventfd to be swapped.
- s/GFP_KERNEL/GFP_KERNEL_ACCOUNT.
- s/VFIO_PCI_ACPI_NTFY_IRQ_INDEX/VFIO_PCI_ACPI_IRQ_INDEX.
- Add header protection for multiple includes.
- v4: https://patchwork.kernel.org/project/kvm/patch/20230522165811.123417-1-ja...
Changelog v3..v4
Address Alex Williamson feedback:
- Instead of introducing new ioctl used for eventfd registration, take
advantage of VFIO_DEVICE_SET_IRQS which already supports virtual IRQs
for things like error notification and device release requests.
- Introduced mechanism preventing creation of large queues.
Other:
- Move the implementation into the newly introduced VFIO_ACPI_NOTIFY
helper module. It is actually not bound to VFIO_PCI but VFIO_PCI
enables it whenever ACPI support is enabled. This change is introduced
since ACPI notifications are not limited to PCI devices, making it PCI
independent will allow to re-use it also for other VFIO_* like
supports: e.g. VFIO_PLATFORM in the future if needed. Moving it out of
drivers/vfio/pci/ was also suggested offline.
- s/notify_val_next/node
- v3: https://patchwork.kernel.org/project/kvm/patch/20230502132700.654528-1-ja...
Changelog v2..v3:
- Fix compilation warnings when building with "W=1"
Changelog v1..v2:
- The v2 implementation is actually completely different then v1:
instead of using acpi netlink events for propagating ACPI
notifications to the user space take advantage of eventfd, which can
provide better VMM and device isolation: it allows to use a dedicated
channel associated with the device for such events, such that the VMM
has direct access.
- Using eventfd counter as notification value placeholder was suggested
in v1 and requires additional serialization logic introduced in v2.
- Since the vfio-pci supports non-ACPI platforms address !CONFIG_ACPI
case.
- v1 discussion: https://patchwork.kernel.org/project/kvm/patch/20230307220553.631069-1-ja...
---
drivers/vfio/Kconfig | 5 +
drivers/vfio/Makefile | 1 +
drivers/vfio/acpi_notify.c | 324 ++++++++++++++++++++++++++++++
drivers/vfio/pci/Kconfig | 1 +
drivers/vfio/pci/vfio_pci_core.c | 13 ++
drivers/vfio/pci/vfio_pci_intrs.c | 80 ++++++++
include/linux/vfio_acpi_notify.h | 36 ++++
include/linux/vfio_pci_core.h | 1 +
include/uapi/linux/vfio.h | 1 +
9 files changed, 462 insertions(+)
create mode 100644 drivers/vfio/acpi_notify.c
create mode 100644 include/linux/vfio_acpi_notify.h
diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
index 89e06c981e43..cd9df43a4eb4 100644
--- a/drivers/vfio/Kconfig
+++ b/drivers/vfio/Kconfig
@@ -12,6 +12,11 @@ menuconfig VFIO
If you don't know what to do here, say N.
if VFIO
+config VFIO_ACPI_NOTIFY
+ bool
+ depends on ACPI
+ default n
+
config VFIO_CONTAINER
bool "Support for the VFIO container /dev/vfio/vfio"
select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM || ARM64)
diff --git a/drivers/vfio/Makefile b/drivers/vfio/Makefile
index 70e7dcb302ef..003c2b041785 100644
--- a/drivers/vfio/Makefile
+++ b/drivers/vfio/Makefile
@@ -7,6 +7,7 @@ vfio-y += vfio_main.o \
vfio-$(CONFIG_IOMMUFD) += iommufd.o
vfio-$(CONFIG_VFIO_CONTAINER) += container.o
vfio-$(CONFIG_VFIO_VIRQFD) += virqfd.o
+vfio-$(CONFIG_VFIO_ACPI_NOTIFY) += acpi_notify.o
obj-$(CONFIG_VFIO_IOMMU_TYPE1) += vfio_iommu_type1.o
obj-$(CONFIG_VFIO_IOMMU_SPAPR_TCE) += vfio_iommu_spapr_tce.o
diff --git a/drivers/vfio/acpi_notify.c b/drivers/vfio/acpi_notify.c
new file mode 100644
index 000000000000..b78c33077dfa
--- /dev/null
+++ b/drivers/vfio/acpi_notify.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * VFIO ACPI notification propagation
+ *
+ * Author: Grzegorz Jaszczyk <jaz(a)semihalf.com>
+ */
+#include <linux/file.h>
+#include <linux/semaphore.h>
+#include <linux/vfio_acpi_notify.h>
+
+#define NOTIFICATION_QUEUE_SIZE 20
+
+struct acpi_eventfd_ctx {
+ struct eventfd_ctx *acpi_notify_trigger;
+ struct file *acpi_notify_trigger_file;
+ struct semaphore notification_sem;
+ struct work_struct acpi_notification_work;
+ wait_queue_entry_t wait;
+ poll_table pt;
+ struct vfio_acpi_notification *acpi_notify;
+};
+
+struct vfio_acpi_notification {
+ struct acpi_eventfd_ctx *acpi_eventfd;
+ struct list_head notification_list;
+ struct mutex notification_list_lock;
+ int notification_queue_count;
+};
+
+struct notification_queue {
+ int notification_val;
+ struct list_head node;
+};
+
+static int vfio_eventfd_wakeup(wait_queue_entry_t *wait, unsigned int mode,
+ int sync, void *key)
+{
+ struct acpi_eventfd_ctx *acpi_eventfdctx =
+ container_of(wait, struct acpi_eventfd_ctx, wait);
+ __poll_t flags = key_to_poll(key);
+
+ /*
+ * eventfd_read signalize EPOLLOUT at the end of its function - this
+ * means previous eventfd with its notification value was consumed so
+ * the next notification can be signalized now if pending - schedule
+ * proper work.
+ */
+ if (flags & EPOLLOUT) {
+ up(&acpi_eventfdctx->notification_sem);
+
+ schedule_work(&acpi_eventfdctx->acpi_notification_work);
+ }
+
+ /*
+ * Even if the eventfd is closed lets still queue notifications so they
+ * can be replicated when new eventfd is registered (see "Allow eventfd
+ * to be swapped").
+ *
+ * Below will be reached only in case user closes eventfd and then
+ * trigger eventfd swap (or vice-versa).
+ */
+ if (flags & EPOLLHUP) {
+ /*
+ * eventfd_release after signalling EPOLLHUP calls eventfd_ctx_put
+ * so no need to do it here.
+ */
+
+ kfree(acpi_eventfdctx);
+ }
+
+ return 0;
+}
+
+static void vfio_ptable_queue_proc(struct file *file,
+ wait_queue_head_t *wqh, poll_table *pt)
+{
+ struct acpi_eventfd_ctx *acpi_eventfdctx =
+ container_of(pt, struct acpi_eventfd_ctx, pt);
+
+ add_wait_queue(wqh, &acpi_eventfdctx->wait);
+}
+
+static struct notification_queue *
+acpi_notification_dequeue(struct vfio_acpi_notification *acpi_notify)
+{
+ struct notification_queue *oldest_entry;
+
+ lockdep_assert_held(&acpi_notify->notification_list_lock);
+
+ oldest_entry = list_first_entry(&acpi_notify->notification_list,
+ struct notification_queue,
+ node);
+ list_del(&oldest_entry->node);
+ acpi_notify->notification_queue_count--;
+
+ return oldest_entry;
+}
+
+static void acpi_notification_work_fn(struct work_struct *work)
+{
+ struct acpi_eventfd_ctx *acpi_eventfdctx;
+ struct vfio_acpi_notification *acpi_notify;
+ struct notification_queue *entry;
+
+ acpi_eventfdctx = container_of(work, struct acpi_eventfd_ctx,
+ acpi_notification_work);
+
+ acpi_notify = acpi_eventfdctx->acpi_notify;
+
+ mutex_lock(&acpi_notify->notification_list_lock);
+ if (list_empty(&acpi_notify->notification_list))
+ goto out;
+
+ /*
+ * If the previous eventfd was not yet consumed by user-space lets hold
+ * on and exit. The notification function will be rescheduled when
+ * signaling eventfd will be possible (when the EPOLLOUT will be
+ * signalized and unlocks notify_events or when eventfd will be swapped).
+ */
+ if (down_trylock(&acpi_eventfdctx->notification_sem))
+ goto out;
+
+ entry = acpi_notification_dequeue(acpi_notify);
+
+ mutex_unlock(&acpi_notify->notification_list_lock);
+
+ eventfd_signal(acpi_eventfdctx->acpi_notify_trigger, entry->notification_val);
+
+ kfree(entry);
+
+ return;
+out:
+ mutex_unlock(&acpi_notify->notification_list_lock);
+}
+
+static void
+vfio_acpi_notify_cleanup(struct vfio_acpi_notification **acpi_notify_ptr,
+ struct acpi_device *adev)
+{
+ struct vfio_acpi_notification *acpi_notify = *acpi_notify_ptr;
+ struct acpi_eventfd_ctx *acpi_eventfd = acpi_notify->acpi_eventfd;
+ struct notification_queue *entry, *entry_tmp;
+ u64 cnt;
+
+ eventfd_ctx_remove_wait_queue(acpi_eventfd->acpi_notify_trigger,
+ &acpi_eventfd->wait, &cnt);
+
+ flush_work(&acpi_eventfd->acpi_notification_work);
+
+ mutex_lock(&acpi_notify->notification_list_lock);
+ list_for_each_entry_safe(entry, entry_tmp,
+ &acpi_notify->notification_list,
+ node) {
+ list_del(&entry->node);
+ kfree(entry);
+ }
+ mutex_unlock(&acpi_notify->notification_list_lock);
+
+ eventfd_ctx_put(acpi_eventfd->acpi_notify_trigger);
+
+ /*
+ * fput releases references to eventfd file but it will not trigger the
+ * vfio_eventfd_wakeup with EPOLLHUP since eventfd_ctx_remove_wait_queue
+ * was already called and removed wq entry (wait) from the eventfd
+ * wq head.
+ */
+ fput(acpi_eventfd->acpi_notify_trigger_file);
+
+ kfree(acpi_notify->acpi_eventfd);
+ kfree(acpi_notify);
+
+ *acpi_notify_ptr = NULL;
+}
+
+static void vfio_acpi_notify_handler(acpi_handle handle, u32 event, void *data)
+{
+ struct vfio_acpi_notification *acpi_notify = (struct vfio_acpi_notification *)data;
+ struct notification_queue *entry;
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return;
+
+ entry->notification_val = event;
+ INIT_LIST_HEAD(&entry->node);
+
+ mutex_lock(&acpi_notify->notification_list_lock);
+ if (acpi_notify->notification_queue_count > NOTIFICATION_QUEUE_SIZE) {
+ struct notification_queue *oldest_entry =
+ acpi_notification_dequeue(acpi_notify);
+
+ if (printk_ratelimit())
+ acpi_handle_warn(handle,
+ "dropping notification value %d\n",
+ oldest_entry->notification_val);
+
+ kfree(oldest_entry);
+ }
+ list_add_tail(&entry->node, &acpi_notify->notification_list);
+ acpi_notify->notification_queue_count++;
+ mutex_unlock(&acpi_notify->notification_list_lock);
+
+ schedule_work(&acpi_notify->acpi_eventfd->acpi_notification_work);
+}
+
+void vfio_acpi_notify(struct acpi_device *adev, u32 event, void *data)
+{
+ acpi_handle handle = adev->handle;
+
+ vfio_acpi_notify_handler(handle, event, data);
+}
+EXPORT_SYMBOL_GPL(vfio_acpi_notify);
+
+void vfio_remove_acpi_notify(struct vfio_acpi_notification **acpi_notify_ptr,
+ struct acpi_device *adev)
+{
+ struct vfio_acpi_notification *acpi_notify = *acpi_notify_ptr;
+
+ if (!acpi_notify)
+ return;
+
+ acpi_remove_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY,
+ vfio_acpi_notify_handler);
+
+ vfio_acpi_notify_cleanup(acpi_notify_ptr, adev);
+}
+EXPORT_SYMBOL_GPL(vfio_remove_acpi_notify);
+
+static void vfio_acpi_eventfd_init(struct vfio_acpi_notification *acpi_notify,
+ struct eventfd_ctx *efdctx, int32_t fd)
+{
+ struct acpi_eventfd_ctx *acpi_eventfd;
+
+ acpi_eventfd = kzalloc(sizeof(struct acpi_eventfd_ctx), GFP_KERNEL_ACCOUNT);
+
+ INIT_WORK(&acpi_eventfd->acpi_notification_work, acpi_notification_work_fn);
+ acpi_eventfd->acpi_notify_trigger = efdctx;
+
+ sema_init(&acpi_eventfd->notification_sem, 1);
+
+ /*
+ * Install custom wake-up handler to be notified whenever underlying
+ * eventfd is consumed by the user-space.
+ */
+ init_waitqueue_func_entry(&acpi_eventfd->wait, vfio_eventfd_wakeup);
+ init_poll_funcptr(&acpi_eventfd->pt, vfio_ptable_queue_proc);
+
+ acpi_eventfd->acpi_notify_trigger_file = eventfd_fget(fd);
+ vfs_poll(acpi_eventfd->acpi_notify_trigger_file, &acpi_eventfd->pt);
+
+ acpi_eventfd->acpi_notify = acpi_notify;
+ acpi_notify->acpi_eventfd = acpi_eventfd;
+}
+
+int vfio_register_acpi_notify_handler(struct vfio_acpi_notification **acpi_notify_ptr,
+ struct acpi_device *adev, int32_t fd)
+{
+ struct vfio_acpi_notification *acpi_notify = *acpi_notify_ptr;
+ struct eventfd_ctx *efdctx;
+ acpi_status status;
+
+ if (fd < -1)
+ return -EINVAL;
+ else if (fd == -1) {
+ vfio_remove_acpi_notify(acpi_notify_ptr, adev);
+ return 0;
+ }
+
+ efdctx = eventfd_ctx_fdget(fd);
+ if (IS_ERR(efdctx))
+ return PTR_ERR(efdctx);
+
+ /* Allow eventfd to be swapped */
+ if (acpi_notify) {
+ struct file *trigger_file_before_swap =
+ acpi_notify->acpi_eventfd->acpi_notify_trigger_file;
+
+ /*
+ * Lets allocate new acpi_eventfd_ctx, the previous is
+ * alive until eventfd is closed.
+ */
+ vfio_acpi_eventfd_init(acpi_notify, efdctx, fd);
+
+ /*
+ * The ACPI notifications could arrive and be queued during
+ * eventfd swap, retrigger the worker after notification
+ * replication unlocking.
+ */
+ schedule_work(&acpi_notify->acpi_eventfd->acpi_notification_work);
+
+ /*
+ * If the last reference to acpi_notify_trigger_file was
+ * released, the EPOLLHUP will be handled (but not immediately
+ * since fput is async).
+ */
+ fput(trigger_file_before_swap);
+
+ return 0;
+ }
+
+ acpi_notify = kzalloc(sizeof(*acpi_notify), GFP_KERNEL_ACCOUNT);
+ if (!acpi_notify)
+ return -ENOMEM;
+
+ *acpi_notify_ptr = acpi_notify;
+ mutex_init(&acpi_notify->notification_list_lock);
+ INIT_LIST_HEAD(&acpi_notify->notification_list);
+
+ vfio_acpi_eventfd_init(acpi_notify, efdctx, fd);
+
+ status = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY,
+ vfio_acpi_notify_handler, (void *)acpi_notify);
+ if (ACPI_FAILURE(status)) {
+ dev_err(&adev->dev, "Failed to install notify handler: %s",
+ acpi_format_exception(status));
+
+ vfio_acpi_notify_cleanup(acpi_notify_ptr, adev);
+
+ return -ENODEV;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(vfio_register_acpi_notify_handler);
diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig
index f9d0c908e738..f03ca773dfd9 100644
--- a/drivers/vfio/pci/Kconfig
+++ b/drivers/vfio/pci/Kconfig
@@ -4,6 +4,7 @@ config VFIO_PCI_CORE
tristate
select VFIO_VIRQFD
select IRQ_BYPASS_MANAGER
+ select VFIO_ACPI_NOTIFY if ACPI
config VFIO_PCI_MMAP
def_bool y if !S390
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index a5ab416cf476..1cc4a9c05403 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -27,6 +27,7 @@
#include <linux/vgaarb.h>
#include <linux/nospec.h>
#include <linux/sched/mm.h>
+#include <linux/vfio_acpi_notify.h>
#if IS_ENABLED(CONFIG_EEH)
#include <asm/eeh.h>
#endif
@@ -683,6 +684,7 @@ void vfio_pci_core_close_device(struct vfio_device *core_vdev)
{
struct vfio_pci_core_device *vdev =
container_of(core_vdev, struct vfio_pci_core_device, vdev);
+ struct acpi_device *adev = ACPI_COMPANION(&vdev->pdev->dev);
if (vdev->sriov_pf_core_dev) {
mutex_lock(&vdev->sriov_pf_core_dev->vf_token->lock);
@@ -704,6 +706,8 @@ void vfio_pci_core_close_device(struct vfio_device *core_vdev)
eventfd_ctx_put(vdev->req_trigger);
vdev->req_trigger = NULL;
}
+ if (adev)
+ vfio_remove_acpi_notify(&vdev->acpi_notification, adev);
mutex_unlock(&vdev->igate);
}
EXPORT_SYMBOL_GPL(vfio_pci_core_close_device);
@@ -725,6 +729,8 @@ EXPORT_SYMBOL_GPL(vfio_pci_core_finish_enable);
static int vfio_pci_get_irq_count(struct vfio_pci_core_device *vdev, int irq_type)
{
+ struct acpi_device *adev = ACPI_COMPANION(&vdev->pdev->dev);
+
if (irq_type == VFIO_PCI_INTX_IRQ_INDEX) {
u8 pin;
@@ -761,6 +767,8 @@ static int vfio_pci_get_irq_count(struct vfio_pci_core_device *vdev, int irq_typ
return 1;
} else if (irq_type == VFIO_PCI_REQ_IRQ_INDEX) {
return 1;
+ } else if (adev && irq_type == VFIO_PCI_ACPI_IRQ_INDEX) {
+ return 1;
}
return 0;
@@ -1084,6 +1092,7 @@ static int vfio_pci_ioctl_get_irq_info(struct vfio_pci_core_device *vdev,
struct vfio_irq_info __user *arg)
{
unsigned long minsz = offsetofend(struct vfio_irq_info, count);
+ struct acpi_device *adev = ACPI_COMPANION(&vdev->pdev->dev);
struct vfio_irq_info info;
if (copy_from_user(&info, arg, minsz))
@@ -1096,6 +1105,10 @@ static int vfio_pci_ioctl_get_irq_info(struct vfio_pci_core_device *vdev,
case VFIO_PCI_INTX_IRQ_INDEX ... VFIO_PCI_MSIX_IRQ_INDEX:
case VFIO_PCI_REQ_IRQ_INDEX:
break;
+ case VFIO_PCI_ACPI_IRQ_INDEX:
+ if (adev)
+ break;
+ return -EINVAL;
case VFIO_PCI_ERR_IRQ_INDEX:
if (pci_is_pcie(vdev->pdev))
break;
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c
index bffb0741518b..27d0c4cdc3c9 100644
--- a/drivers/vfio/pci/vfio_pci_intrs.c
+++ b/drivers/vfio/pci/vfio_pci_intrs.c
@@ -19,6 +19,7 @@
#include <linux/vfio.h>
#include <linux/wait.h>
#include <linux/slab.h>
+#include <linux/vfio_acpi_notify.h>
#include "vfio_pci_priv.h"
@@ -667,6 +668,71 @@ static int vfio_pci_set_req_trigger(struct vfio_pci_core_device *vdev,
count, flags, data);
}
+static int
+vfio_pci_set_acpi_ntfy_trigger(struct vfio_pci_core_device *vdev,
+ unsigned int index, unsigned int start,
+ unsigned int count, uint32_t flags, void *data)
+{
+ struct acpi_device *adev = ACPI_COMPANION(&vdev->pdev->dev);
+
+ if (index != VFIO_PCI_ACPI_IRQ_INDEX || start != 0 || count > 1)
+ return -EINVAL;
+
+ if (!adev)
+ return -ENODEV;
+
+ if (!vdev->acpi_notification)
+ return -EINVAL;
+
+ /*
+ * Disable notifications: flags = (DATA_NONE|ACTION_TRIGGER), count = 0
+ * Enable loopback testing: (DATA_BOOL|ACTION_TRIGGER) or
+ * (DATA_NONE|ACTION_TRIGGER), count != 0
+ */
+ if (flags & VFIO_IRQ_SET_DATA_NONE) {
+ if (count)
+ vfio_acpi_notify(adev, ACPI_NOTIFY_DEVICE_CHECK,
+ vdev->acpi_notification);
+ else
+ vfio_remove_acpi_notify(&vdev->acpi_notification, adev);
+
+ return 0;
+ } else if (flags & VFIO_IRQ_SET_DATA_BOOL) {
+ uint8_t trigger;
+
+ if (!count)
+ return -EINVAL;
+
+ trigger = *(uint8_t *)data;
+ if (trigger)
+ vfio_acpi_notify(adev, ACPI_NOTIFY_DEVICE_CHECK,
+ vdev->acpi_notification);
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int
+vfio_pci_set_acpi_ntfy_eventfd_trigger(struct vfio_pci_core_device *vdev,
+ unsigned int index, unsigned int start,
+ unsigned int count, uint32_t flags, void *data)
+{
+ struct acpi_device *adev = ACPI_COMPANION(&vdev->pdev->dev);
+ int32_t fd;
+
+ if (index != VFIO_PCI_ACPI_IRQ_INDEX || start != 0 || count != 1)
+ return -EINVAL;
+
+ if (!adev)
+ return -ENODEV;
+
+ fd = *(int32_t *)data;
+
+ return vfio_register_acpi_notify_handler(&vdev->acpi_notification, adev, fd);
+}
+
int vfio_pci_set_irqs_ioctl(struct vfio_pci_core_device *vdev, uint32_t flags,
unsigned index, unsigned start, unsigned count,
void *data)
@@ -716,6 +782,20 @@ int vfio_pci_set_irqs_ioctl(struct vfio_pci_core_device *vdev, uint32_t flags,
break;
}
break;
+ case VFIO_PCI_ACPI_IRQ_INDEX:
+ switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) {
+ case VFIO_IRQ_SET_ACTION_TRIGGER:
+ switch (flags & VFIO_IRQ_SET_DATA_TYPE_MASK) {
+ case VFIO_IRQ_SET_DATA_BOOL:
+ case VFIO_IRQ_SET_DATA_NONE:
+ func = vfio_pci_set_acpi_ntfy_trigger;
+ break;
+ case VFIO_IRQ_SET_DATA_EVENTFD:
+ func = vfio_pci_set_acpi_ntfy_eventfd_trigger;
+ break;
+ }
+ }
+ break;
}
if (!func)
diff --git a/include/linux/vfio_acpi_notify.h b/include/linux/vfio_acpi_notify.h
new file mode 100644
index 000000000000..e29e4274d192
--- /dev/null
+++ b/include/linux/vfio_acpi_notify.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * VFIO ACPI notification replication
+ *
+ * Author: Grzegorz Jaszczyk <jaz(a)semihalf.com>
+ */
+#include <linux/acpi.h>
+#include <linux/eventfd.h>
+#include <linux/poll.h>
+
+#ifndef VFIO_ACPI_NOTIFY_H
+#define VFIO_ACPI_NOTIFY_H
+
+struct vfio_acpi_notification;
+
+#if IS_ENABLED(CONFIG_ACPI)
+void vfio_acpi_notify(struct acpi_device *adev, u32 event, void *data);
+int vfio_register_acpi_notify_handler(struct vfio_acpi_notification **acpi_notify,
+ struct acpi_device *adev, int32_t fd);
+void vfio_remove_acpi_notify(struct vfio_acpi_notification **acpi_notify,
+ struct acpi_device *adev);
+#else
+static inline void vfio_acpi_notify(struct acpi_device *adev, u32 event, void *data) {}
+static inline int
+vfio_register_acpi_notify_handler(struct vfio_acpi_notification **acpi_notify,
+ struct acpi_device *adev, int32_t fd)
+{
+ return -ENODEV;
+}
+
+static inline void
+vfio_remove_acpi_notify(struct vfio_acpi_notification **acpi_notify,
+ struct acpi_device *adev) {}
+#endif /* CONFIG_ACPI */
+
+#endif /* VFIO_ACPI_NOTIFY_H */
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h
index 367fd79226a3..a4491b3d8064 100644
--- a/include/linux/vfio_pci_core.h
+++ b/include/linux/vfio_pci_core.h
@@ -96,6 +96,7 @@ struct vfio_pci_core_device {
struct mutex vma_lock;
struct list_head vma_list;
struct rw_semaphore memory_lock;
+ struct vfio_acpi_notification *acpi_notification;
};
/* Will be exported for vfio pci drivers usage */
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index b71276bd7f91..ee8ba6354662 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -625,6 +625,7 @@ enum {
VFIO_PCI_MSIX_IRQ_INDEX,
VFIO_PCI_ERR_IRQ_INDEX,
VFIO_PCI_REQ_IRQ_INDEX,
+ VFIO_PCI_ACPI_IRQ_INDEX,
VFIO_PCI_NUM_IRQS
};
--
2.41.0.255.g8b1d071c50-goog
1 year, 4 months
- 1
- 0
[PATCH 0/2] qemu: VM saving related fixes
by Peter Krempa
Peter Krempa (2):
qemu: driver: Reformat helpers for saving VM state
Properly mark auto-added 'terminator' virStorageSource
src/qemu/qemu_domain.c | 4 +++-
src/qemu/qemu_driver.c | 11 +++++++----
src/storage_file/storage_source.c | 1 +
3 files changed, 11 insertions(+), 5 deletions(-)
--
2.41.0
1 year, 4 months
- 2
- 4
[PATCH 0/2] NEWS update for upcoming release
by Peter Krempa
Peter Krempa (2):
NEWS: Move section about 'discard_no_unref' to features
NEWS: Document changes for the release
NEWS.rst | 49 ++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 44 insertions(+), 5 deletions(-)
--
2.41.0
1 year, 4 months
- 2
- 4
Entering freeze for libvirt-9.5.0
by Jiri Denemark
I have just tagged v9.5.0-rc1 in the repository and pushed signed
tarballs and source RPMs to https://download.libvirt.org/
Please give the release candidate some testing and in case you find a
serious issue which should have a fix in the upcoming release, feel
free to reply to this thread to make sure the issue is more visible.
If you have not done so yet, please update NEWS.rst to document any
significant change you made since the last release.
Thanks,
Jirka
1 year, 4 months
- 1
- 1
[PATCH] apparmor: Add support for local profile customizations
by Jim Fehlig
Apparmor profiles in /etc/apparmor.d/ are config files that can and should
be replaced on package upgrade, which introduces the potential to overwrite
any local changes. Apparmor supports local profile customizations via
/etc/apparmor.d/local/<service> [1].
This change makes the support explicit by adding libvirtd, virtqemud, and
virtxend profile customization stubs to /etc/apparmor.d/local/. The stubs
are conditionally included by the corresponding main profiles.
[1] https://ubuntu.com/server/docs/security-apparmor
See "Profile customization" section
Signed-off-by: Jim Fehlig <jfehlig(a)suse.com>
---
This patch was inspired by an internal bug report. The SUSE libvirt package
has marked /etc/apparmor.d/<some-libvirt-service> profiles as
'config(noreplace)' for as long as I can remember. On rare occasions a
profile receives a change that is required to avoid regression. And on rarer
occasions a user might have made local customizations to the profile. With
'noreplace', the trap is set for the user to experience the regression.
Unless other apparmor users convince me otherwise, I'm planning to make
this change in the SUSE package, along with changing the main
/etc/apparmor.d/ profiles to 'config' and using 'config(noreplace)' for the
local customizations only.
Note: I'm fine keeping this as a downstream-only patch if upstream isn't
interested in the clutter.
src/security/apparmor/meson.build | 12 +++++++-----
src/security/apparmor/usr.sbin.libvirtd.in | 3 +++
src/security/apparmor/usr.sbin.libvirtd.local | 1 +
src/security/apparmor/usr.sbin.virtqemud.in | 3 +++
src/security/apparmor/usr.sbin.virtqemud.local | 1 +
src/security/apparmor/usr.sbin.virtxend.in | 3 +++
src/security/apparmor/usr.sbin.virtxend.local | 1 +
7 files changed, 19 insertions(+), 5 deletions(-)
diff --git a/src/security/apparmor/meson.build b/src/security/apparmor/meson.build
index 58b4024b85..02a6d098ad 100644
--- a/src/security/apparmor/meson.build
+++ b/src/security/apparmor/meson.build
@@ -34,8 +34,10 @@ install_data(
install_dir: apparmor_dir / 'libvirt',
)
-install_data(
- 'usr.lib.libvirt.virt-aa-helper.local',
- install_dir: apparmor_dir / 'local',
- rename: 'usr.lib.libvirt.virt-aa-helper',
-)
+foreach name : apparmor_gen_profiles
+ install_data(
+ '@0@.local'.format(name),
+ install_dir: apparmor_dir / 'local',
+ rename: name,
+ )
+endforeach
diff --git a/src/security/apparmor/usr.sbin.libvirtd.in b/src/security/apparmor/usr.sbin.libvirtd.in
index edb8dd8e26..41bdef53ec 100644
--- a/src/security/apparmor/usr.sbin.libvirtd.in
+++ b/src/security/apparmor/usr.sbin.libvirtd.in
@@ -139,4 +139,7 @@ profile libvirtd @sbindir@/libvirtd flags=(attach_disconnected) {
/usr/{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper rmix,
}
+
+ # Site-specific additions and overrides. See local/README for details.
+ include if exists <local/usr.sbin.libvirtd>
}
diff --git a/src/security/apparmor/usr.sbin.libvirtd.local b/src/security/apparmor/usr.sbin.libvirtd.local
new file mode 100644
index 0000000000..3716400022
--- /dev/null
+++ b/src/security/apparmor/usr.sbin.libvirtd.local
@@ -0,0 +1 @@
+# Site-specific additions and overrides for 'usr.sbin.libvirtd'
diff --git a/src/security/apparmor/usr.sbin.virtqemud.in b/src/security/apparmor/usr.sbin.virtqemud.in
index f269c60809..3ebdbf2a8f 100644
--- a/src/security/apparmor/usr.sbin.virtqemud.in
+++ b/src/security/apparmor/usr.sbin.virtqemud.in
@@ -132,4 +132,7 @@ profile virtqemud @sbindir@/virtqemud flags=(attach_disconnected) {
/usr/{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper rmix,
}
+
+ # Site-specific additions and overrides. See local/README for details.
+ include if exists <local/usr.sbin.virtqemud>
}
diff --git a/src/security/apparmor/usr.sbin.virtqemud.local b/src/security/apparmor/usr.sbin.virtqemud.local
new file mode 100644
index 0000000000..2ac68bb069
--- /dev/null
+++ b/src/security/apparmor/usr.sbin.virtqemud.local
@@ -0,0 +1 @@
+# Site-specific additions and overrides for 'usr.sbin.virtqemud'
diff --git a/src/security/apparmor/usr.sbin.virtxend.in b/src/security/apparmor/usr.sbin.virtxend.in
index 72e0d801e5..719766a0c1 100644
--- a/src/security/apparmor/usr.sbin.virtxend.in
+++ b/src/security/apparmor/usr.sbin.virtxend.in
@@ -52,4 +52,7 @@ profile virtxend @sbindir@/virtxend flags=(attach_disconnected) {
@libexecdir@/libvirt_iohelper ix,
/etc/libvirt/hooks/** rmix,
/etc/xen/scripts/** rmix,
+
+ # Site-specific additions and overrides. See local/README for details.
+ include if exists <local/usr.sbin.virtxend>
}
diff --git a/src/security/apparmor/usr.sbin.virtxend.local b/src/security/apparmor/usr.sbin.virtxend.local
new file mode 100644
index 0000000000..2ade86d4df
--- /dev/null
+++ b/src/security/apparmor/usr.sbin.virtxend.local
@@ -0,0 +1 @@
+# Site-specific additions and overrides for 'usr.sbin.virtxend'
--
2.40.1
1 year, 4 months
- 5
- 22