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By adding a link to an explanation in the kbase.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
QEMU 8.2 was released, update the x86_64 data for a final time.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
FreeBSD 12.0 is no longer supported since 14.0 is out. Change the
CI manifest and refresh the rest.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Multiplication results in integer overflow.
Thus, replace it with ULLONG_MAX and change
def->opts.pciopts.pcihole64size type to ULL.
Update variable usage according to new type.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Egor Makrushin <emakrushin@astralinux.ru>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
As of commit b2d079c113 which converted this function to use g_strdup,
the error label is only reached when i = 0, rendering it useless.
Remove it.
Fixes: https://gitlab.com/libvirt/libvirt/-/issues/572
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When splitting out the apparmor modular daemon profiles from the
libvirtd profile, the net_admin and sys_admin capabilities were
dropped from the virtxend profile. It was not known at the time
that these capabilities were needed for PCI passthrough. Without
the capabilities, the following messages are emitted from the audit
subsystem
audit: type=1400 audit(1702939277.946:63): apparmor="DENIED" \
operation="capable" class="cap" profile="virtxend" pid=3611 \
comm="rpc-virtxend" capability=21 capname="sys_admin"
audit: type=1400 audit(1702940304.818:63): apparmor="DENIED" \
operation="capable" class="cap" profile="virtxend" pid=3731 \
comm="rpc-virtxend" capability=12 capname="net_admin"
It appears sys_admin is needed to simply read from the PCI dev's
sysfs config file. The net_admin capability is needed when setting
the MAC address of an SR-IOV virtual function.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Recent refactor which changed the format check to use
qemuBlockStorageSourceIsRaw accidentaly inverted the condition.
Caught by the CI test suite.
Fixes: b600b69f82
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
If the user did not specify any uid mapping, map its own
user ID to ID 0 inside the container and the rest of the IDs
to the first found user's authorized range in /etc/sub[ug]id
https://issues.redhat.com/browse/RHEL-7386https://gitlab.com/libvirt/libvirt/-/issues/535
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Remove the explicit setting of uid 0 when running virtiofsd.
It is not required for privileged mode, where virtiofsd will be run
as root anyway. And for unprivileged mode, virtiofsd no longer requires
to be run as root.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pass the ID map to virtiofsd, which will run the suid `newuidmap`
binary for us.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Allow the user to manually tweak the ID mapping that will allow
virtiofsd to run unprivileged.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Until now resizing a disk with a storage slice would break in one of the
following ways:
1) for a non-raw format, the virtual size would change, but the slice
would still remain in place
2) for raw disks qemu would refuse to change the size
The only reasonable scenario we want to support is a 'raw' image with 0
offset (inside a block device), where we can just drop the slice.
Anything else comes from a non-standard storage setup that we don't want
to touch.
To facilitate the resize, we first remove the 'size' parameter in qemu
thus dropping the slice and then instructing qemu to resize the disk.
Resolves: https://issues.redhat.com/browse/RHEL-18782
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function will be used in the code for resizing block devices with a
slice.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Prepare the blockdev props formatter to skip formatting the slice props
in case they are not applicable.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rather than pulling the configuration of the storage slice into the
'format' layer make the 'slice' layer effective for raw disks with a
storage slice. This was made possible by the recent refactors which made
the 'format' layer optional if not needed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Resizing of block-backed storage requires the user to pass the exact
capacity of the device. Implement code which will query it instead so
the user doesn't need to do that.
Closes: https://gitlab.com/libvirt/libvirt/-/issues/449
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allow users to easily resize 'raw' images on block devices to the full
capacity of the block device. Obviously this won't work on file-backed
storage (filling the remaining capacity is most likely wrong) or for
formats with metadata due to the overhead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
VSH_ALTERNATIVE_OPTIONS takes just the name of the options instead of
requiring also the getter functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Move the check for readonly and empty disks to the top where all other
checks will be done.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Refactor code checking whether image is raw. This fixes multiple places
where a LUKS encrypted disk could be mistreated.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Unfortunately a LUKS image to be decrypted by qemu has
VIR_STORAGE_FILE_RAW as format, but has encryption properties populated.
Many places in the code don't check it properly and also don't check
properly whether the image is indeed LUKS to be decrypted by qemu.
Introduce helpers which will simplify this task.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Spellchecked-by: Ján Tomko <jtomko@redhat.com>
QEMU's blockdev-mirror job doesn't allow copy into a destination which
isn't exactly the same size as source. This is a problem for
non-shared-storage migration when migrating into a raw block device, as
there it's very hard to ensure that the destination size will match the
source size.
Rather than failing the migration, we can add a storage slice in such
case automatically and thus make the migration pass.
To do this we need to probe the size of the block device on the
destination and if it differs form the size detected on the source we'll
install the 'slice'.
An additional handling is required when persisting the VM as we want to
propagate the slice even there to ensure that the device sizes won't
change.
Resolves: https://issues.redhat.com/browse/RHEL-4607
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Move qemuDomainStorageUpdatePhysical, qemuDomainStorageOpenStat,
qemuDomainStorageCloseStat to qemu_domain.c and export them. They'll be
reused in the migration code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function will be used to setup storage for non-shared-storage
migration, not just precreate images.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When a user provides a migration XML via the VIR_MIGRATE_PARAM_DEST_XML
it's expected that they want to change ABI-compatible aspects of the XML
such as the disk paths or similar.
If the user requests persisting of the VM but does not provide an
explicit persistent XML libvirt would take the persistent XML from the
source of the migration as the persistent config. This usually involves
the old paths to images.
Doing this would result into failure to start the VM.
It makes more sense to take the XML used for migration and use that as
the base for persisting the config.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While it's intended that qemuMigrationDstPrecreateDisk is called with
any kind of the disk, the logic in qemuMigrationDstPrecreateStorage
which checks the existence of the image wouldn't properly handle e.g.
network backed disks, where it would attempt to use virFileExists() on
the disk's 'src->path'.
Fix the logic by first skipping disks not meant for migration, then do
the existence check only when 'disk->src' is local storage.
Since qemuMigrationDstPrecreateDisk has a debug statement there's no
need to have an extra one right before calling into it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use automatic pointer freeing for 'conn' and remove the 'cleanup' label.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Change the error messages so that they can be used to identify the
problematic disk or image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Commit 501825011c switched the remote driver to using g_auto, but missed
one case of needing to steal a pointer holding the hypervisor type.
Without it, memory is freed and the output of 'virsh version' has random
output
Compiled against library: libvirt 10.0.0
Using library: libvirt 10.0.0
Using API: ��%�U 10.0.0
Running hypervisor: ��U 8.1.3
Ths change also fixes random SIGABRT from perl processes running
libvirt-tck tests.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Report both block count and size together when either one of them is
present equivalently to what the schema type 'blockData' in
'schemas/nodedev.rng' defines.
Resolves: https://issues.redhat.com/browse/RHEL-18165
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Unfortunately the XML is designed in a weird way, where based on whether
media in the device is removable the sizing is either part of a
subelement or placed directly on top level. The logic itself is
identical so it can be extracted into a function to simplify the
formatter.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virBufferEscapeString is specifically designed for formatting XMLs and
thus skips the whole formatting if the singular string argument is NULL.
Remove redundant conditions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
As the error message states we want to check that one of
'--copy-storage-all' or '--copy-storage-inc' is used, but the condition
mentioned VIR_MIGRATE_NON_SHARED_DISK twice.
Fixes: 1c2bd205ed
Resolves: https://issues.redhat.com/browse/RHEL-17596
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The API treats them as mutually exclusive and interlocks them at the
library handler. Provide better error in virsh.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
There's no point in skiping the validation step:
- on the source, the VM is parsed for ABI stability checking, thus the
equivalent config was validated when the VM was started
- on the destination, the XML will be validated inside qemuProcessInit
very soon after it is parsed
This fixes problems such as if the user uses a relative path in the disk
source or omits the source, as the disk migration code reasonably
expects that all checks were performed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
