31397 Commits

Author SHA1 Message Date
Peter Krempa
db817385e8 qemu: Always assume QEMU_CAPS_MEM_MERGE
Supported since qemu commit 8490fc78e7 ("add -machine mem-merge=on|off
option") released in qemu-v1.3.0 and can't be compiled out.

Assume that it's present and remove the validation code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:08 +02:00
Peter Krempa
0d41080701 qemu: capabilities: Retire QEMU_CAPS_SPLASH_TIMEOUT
The code assumes that the feature tracked by this capability always
exists.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:08 +02:00
Peter Krempa
9216090cf1 qemu: Always assume QEMU_CAPS_SPLASH_TIMEOUT
Supported since qemu commit 3d3b8303c6 ("showing a splash picture when
start") released in qemu-v1.0 and can't be compiled out.

Assume that it's present and remove the validation code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:07 +02:00
Peter Krempa
81469b3d51 qemu: capabilities: Retire QEMU_CAPS_REBOOT_TIMEOUT
The code assumes that the feature tracked by this capability always
exists.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:07 +02:00
Peter Krempa
2b928f1c2d qemu: Always assume QEMU_CAPS_REBOOT_TIMEOUT
Supported since ac05f34924 ("add a boot parameter to set reboot
timeout") released in qemu-v1.3.0 and can't be compiled out.

Assume that it's present and remove the validation code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:07 +02:00
Peter Krempa
0a9052e03e qemu: capabilities: Retire QEMU_CAPS_BOOT_STRICT
It's not used since last commit.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:07 +02:00
Peter Krempa
e2aa0c3b5a qemu: command: Always assume 'QEMU_CAPS_BOOT_STRICT'
Added by c8a6ae8bb9 in qemu-v1.5.0 and can't be compiled out. Assume
that it's present and fix all fake-caps tests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:06 +02:00
Peter Krempa
021015148b qemuMonitorJSONGetStatus: Refactor cleanup
Use g_autofree for the JSON values to remove cleanup label and ret
variable.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:25:42 +02:00
Peter Krempa
9d34136a52 util: virstring: Remove unused 'virStringListMerge'
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:25:42 +02:00
Peter Krempa
6c49c2ee9f virDevMapperGetTargets: Use a linked list as return type
Of the two callers one simply iterates over the returned paths and the
second one appends the returned paths to another linked list. Simplify
all of this by directly returning a linked list.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:25:42 +02:00
Peter Krempa
45ea6a9fcf util: virdevmapper: Sanitize use of macros for buffer size
There are two distinct uses of an arbitrary buffers size when querying
the device mapper. One is related to loading the /proc/devices file,
while the other is used as buffer for ioctls to the devmapper.

Split up the macros used here so that it's clear that they are not meant
for the same thing.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:25:41 +02:00
Hiroki Narukawa
2d6d67e154 qemu: Implement virtio-blk queue-size option
The option "queue-size" in virtio-blk was added in qemu-2.12.0, and
default value increased from qemu-5.0.0.

However, increasing this value may lead to drop of random access
performance.

Signed-off-by: Hiroki Narukawa <hnarukaw@yahoo-corp.jp>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-09-21 12:22:49 +02:00
Hiroki Narukawa
ad209e7dbc qemu: add QEMU_CAPS_VIRTIO_BLK_QUEUE_SIZE capability
To support virtio-blk queue-size option, this commit adds capability
detection to the option.

Signed-off-by: Hiroki Narukawa <hnarukaw@yahoo-corp.jp>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-09-21 12:22:49 +02:00
Hiroki Narukawa
36560f3551 conf: add queue_size option to disk
The option "queue-size" for virtio-blk was added in qemu-2.12.0, and
default value increased from qemu-5.0.0.

However, increasing this value may lead to drop of random access
performance.

Signed-off-by: Hiroki Narukawa <hnarukaw@yahoo-corp.jp>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-09-21 12:22:48 +02:00
Hiroki Narukawa
240bdcbc93 virDomainDiskDefCheckABIStability: add disk queue count ABI stability check
virtio-blk num-queue is visible to guest OS, so this must be kept while
live migration.

Signed-off-by: Hiroki Narukawa <hnarukaw@yahoo-corp.jp>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-09-21 12:22:48 +02:00
Tim Wiederhake
785a11cec8 Fix typos
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2021-09-17 14:28:00 +02:00
Kristina Hanicova
f6b83df5b3 network: allow VIR_NETWORK_CREATE_VALIDATE flag
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 16:26:18 +02:00
Kristina Hanicova
d0c80da88a api: add virNetworkCreateFlags
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 16:26:18 +02:00
Kristina Hanicova
00182251d0 src: add driver support for networkCreateXMLFlags()
I added new driver functions to handle creating network with
given flags. I also replaced definitions of the functions without
flags with function calls to the new ones.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 16:26:18 +02:00
Kristina Hanicova
6a0a2840cf api: add public virNetworkCreateXMLFlags() and remote protocol
This new API creates network with given flags.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 16:26:18 +02:00
Laine Stump
ddba9f1dc9 conf: log error on attempts to modify ACPI index of active device
The ACPI index of a device in a running guest can't be modified, and
libvirt doesn't actually attempt to modify it, but it was possible for
a user to request such a modification, and libvirt wouldn't complain,
thus misleading the user into thinking that it had actually been changed.

Resolves: https://bugzilla.redhat.com/1998920

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 09:29:24 -04:00
Laine Stump
cf916af4a1 conf: reformat virDomainDefCompatibleDevice for upcoming additional check
The next patch will add another check similar to the existing check
for a change in alias name. This patch reformats the code in
preparation so that the next patch's purpose will be clear.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 09:29:24 -04:00
Michal Privoznik
306a1ee685 qemu: Fix typo in qemuBuilNumaCellCache
The function should be named qemuBuildNumaCellCache (note the
missing 'd' in Build).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-16 08:45:48 +02:00
Peter Krempa
3a90cb03ee qemu: validate: Allow 'preserve' action for on_crash lifecycle action
In fact keeping the VM around for debugging is a desirable configuration
and actually the implementation has no code as we keep the VM around.

Remove the validation and add a note that it's actually used.

Fixes: b1b85a475fb251b9068b75f629479f5c452f1b43
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
2021-09-15 14:40:51 +02:00
Nick Chevsky
dbc605d8d9 qemu_tpm: Start swtpm(8) daemon with --terminate switch
Launch swtpm(8) with the --terminate switch, which guarantees that
the daemon will shut itself down when QEMU dies (current behavior).
We had so far been getting this "for free" (i.e. without --terminate)
due to a defect in upstream's connection handling logic [1], on which
libvirt should not rely since it will eventually be fixed. Adding
--terminate preserves and guarantees the current behavior.

[1] https://github.com/stefanberger/swtpm/pull/509

Signed-off-by: Nick Chevsky <nchevsky@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-15 09:54:06 +02:00
Michal Privoznik
757ed5b09c node_device_conf: Don't prealloc @vfs in virNodeDeviceGetPCISRIOVCaps()
The array of virtual functions @vfs in
virNodeDeviceGetPCISRIOVCaps() is allocated twice: the first time
during its declaration and the second time inside
virPCIGetVirtualFunctions() which leads to a memleak:

==16691== 1,128 bytes in 47 blocks are definitely lost in loss record 1,771 of 1,803
==16691==    at 0x4844CC1: calloc (vg_replace_malloc.c:1117)
==16691==    by 0x4E50070: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.6800.3)
==16691==    by 0x4A7B034: virNodeDeviceGetPCISRIOVCaps (node_device_conf.c:2649)
==16691==    by 0x4A7B5E2: virNodeDeviceGetPCIDynamicCaps (node_device_conf.c:2762)
==16691==    by 0xA7F6E18: udevProcessPCI (node_device_udev.c:418)

Fixes: c97518d9b833a607f29b9bb02e3fbe74c011c088
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-15 08:41:06 +02:00
Jonathon Jongsma
24ffeef09c nodedev: Implement virNodeDeviceIsPersistent()/IsActive()
Implement these new API functions in the nodedev driver.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-14 14:25:55 -05:00
Jonathon Jongsma
6d0b85d792 api: add virNodeDeviceIsPersistent()/IsActive()
These two public APIs are implemented for almost all other objects that
have a concept of persistent definition and activatability. Now that we
have node devices (mdevs) that can be defined and inactive, it will be
useful to query the persistent/active state of node devices as well.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-14 14:25:10 -05:00
Jonathon Jongsma
dc60f91530 nodedev: implement virNodeDevice(Get|Set)Autostart()
Implement autostart functionality for mediated devices.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-14 14:24:00 -05:00
Jonathon Jongsma
c6607a25b9 api: add virNodeDevice(Get|Set)Autostart()
This will allow persistent mediated devices to be configured to be
restarted automatically when the host reboots.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-14 14:22:51 -05:00
Jim Fehlig
51eb680b26 libxl: Don't autostart domains on driver reload
When libxlAutostartDomain was introduced with commit fb92307f0d, one hunk
mistakenly added a call site in libxlStateReload. Domains should not be
autostarted when reloading the driver, so remove the offending hunk.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-14 11:37:35 -06:00
Jim Fehlig
65fab900c5 libxl: Fix driver reload
On reload, the libxl driver calls virDomainObjListLoadAllConfigs to load
all configs from /etc/libvirt/libxl/ but incorrectly passes 'true' for
the liveStatus parameter, resulting in error messages such as

libvirtd[21053]: XML error: unexpected root element <domain>, expecting <domstatus>
libvirtd[21053]: Failed to load config for domain 'sles15sp3'

Fix by not requesting live status when re-reading the persistent VM config
files.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-14 11:04:46 -06:00
Jim Fehlig
b75a16ae5e libxl: Improve reporting of die_id in capabilities
On Xen, libvirt runs in a VM (typically dom0) and does not have an accurate
picture of numa and cpu topology of the underlying physical machine using
the "usual" mechanisms. numa info and cpu toplogy are retrieved from libxl
and used to populate the libvirt conterparts. Commit 7b79ee2f78b introduced
support for reporting die_id in capabilities, but did not account for
special handling of numa and cpu topology in libxl.

Currently, Xen does not report die_id in the libxl_cputopology structure.
In the meantime, set die_id to 0, which was suggested by the Xen developers
and is slightly better than random garbage such as

<cpu id='1' socket_id='0' die_id='-1073069552' core_id='0' siblings='0-1'/>

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-14 11:02:26 -06:00
Kristina Hanicova
3e4f4c2eec src: network_conf: propagate only bool to virNetworkDefParseString()
We don't need to propagate all public flags, only the information
about the presence of the validation one, which can differ from
function to function. This patch makes it easier and more
readable in case of a future additions of validation flags.
This change was suggested by Daniel.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-10 17:38:06 +02:00
Peter Krempa
7e23272e35 qemuDomainChangeDiskLive: Modify 'startupPolicy' before changing source
We don't support all startup policies with all source types so to
correctly allow switching from a 'file' based cdrom with 'optional'
startup policy to a 'block' based one which doesn't support optional we
must update the startup policy field first. Obviously we need to have
fallback if the update fails.

Reported-by: Vojtech Juranek <vjuranek@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-10 16:55:33 +02:00
Peter Krempa
526f2900bc qemuProcessQMPInit: Use long options for '-qmp' when probing qemu.
'-qmp' in this case behaves the same as '-chardev' so it should have
been converted the same way as others were in 43c9c0859f2d53321 since
short options are deprecated.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-10 15:18:48 +02:00
Michal Privoznik
4c910519c5 libvirt-domain.c: Fix typo in virDomainAttachDevice doc
In the documentation to virDomainAttachDevice() we refer to a
non-existent virDomainUpdateDeviceFlag() function. The correct
name is virDomainUpdateDeviceFlags().

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2021-09-10 11:09:27 +02:00
Ján Tomko
a26df27662 conf: add cleanup func for virMacMap
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
2021-09-09 18:06:13 +02:00
Ján Tomko
a9ce03636c conf: add cleanup func for virNetworkXMLOption
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
2021-09-09 18:06:13 +02:00
Daniel P. Berrangé
69254cafa0 qemu: stop probing for '-device sga' support
Since we no longer use '-device sga' we can stop probing for this device
in our capabilities code.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-09 16:17:30 +01:00
Daniel P. Berrangé
40dfef297a qemu: switch to use -M graphics=off instead of -device sga
SeaBIOS >= 1.11 has built-in support for outputting to the serial
console when QEMU sets -M graphics=off. Our minimum QEMU version
is 2.11.0, which bundled SeaBIOS 1.11. Thus we have no need to
use '-device sga' anymore.

This change results in a slight layout difference for option ROMs
in memory, however, it does not affect the migration data stream
format on the wire and once migration is complete the target QEMU
memory layout for ROMs matches the source QEMU once again.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-09 16:17:30 +01:00
Daniel P. Berrangé
58dfbca51d qemu: tweak error message to be more general purpose
The BIOS serial console output is currently implemented using the QEMU
'sga' device, but this is going to change in future patches, so the
error message ought to be more generically phrased.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-09 16:17:30 +01:00
Daniel P. Berrangé
c82726a460 qemu: prevent use of <bios useserial='yes'> on non-x86 arches
The <bios useserial='yes'> config results in use of the '-device sga'
QEMU options. This in turn causes QEMU go load the sgabios.bin option
ROM, which contains x86 machine code. This cannot work on non-x86
arches, thus we should block the bad config.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-09-09 16:17:30 +01:00
William Douglas
c88b26a656 ch_driver: Handle validation failure correctly
When validation like deviceValidateCallback fails, the vm will not be
set and so the call to virDomainObjListRemove will be passed a NULL
pointer causing a segfault. To prevent this add a check that the vm is
defined before calling out to virDomainObjListRemove.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00
William Douglas
d4f047dbd1 ch_driver: Add handler for console API
Enable the handler function to find and open the console character
device that will be used by the console API.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00
William Douglas
6a77dd2b67 ch_domain: Allow controller and chr devices
With the console and serial device handling fully functional, allow
the required device types to be specified in the domain
configuration.

The configuration only supports a single serial or console device.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00
William Douglas
d79b9a5a17 ch_process: Handle enabled console devices
Add functionality to allow libvirt console to connect to the
cloud-hypervisor created PTY associated with a VM by updating the
domain with console path information. This has to be run after the VM
is created by cloud-hypervisor.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00
William Douglas
93accefd9e ch_monitor: Add pty json builder function
Add function to build the the json structure to configure a PTY in
cloud-hypervisor.

The devices themselves still aren't allowed in configurations yet
though.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00
William Douglas
3b164e6897 ch_monitor: Make virCHMonitorGet function static
The virCHMonitorGet function isn't going to be used outside of the
monitor, so remove the initial declaration and define the function
to be static.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00
William Douglas
14da5cb95a ch_monitor: Use virCHMonitorGet to access cloud-hypervisor API
Now that virCHMonitorGet is capable of handling data returned by the
cloud-hypervisor API, make use of this via virCHMonitorGetInfo to call
into the vm.info endpoint.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
2021-09-09 14:51:02 +01:00