template guests are never running and never write
to their disks/mountpoints, those $running parameters there can be
dropped.
Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
Use '/dev/zvol' as a base path for new storages for providers 'iet'
and 'LIO', because that is what modern distributions use.
This is a breaking change regarding the addition of new storages on
older distributions, but it's enough to specify the base path '/dev'
explicitly for setups that require it.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Christoph Heiss <c.heiss@proxmox.com>
Link: https://lore.proxmox.com/20250605111109.52712-1-f.ebner@proxmox.com
Plugins can guard based on the machine version to be able to switch
drivers or options in a safe way without the risk of breaking older
versions.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
This is mostly in preparation for external qcow2 snapshot support.
For internal qcow2 snapshots, which currently are the only supported
variant, it is not possible to attach the snapshot only. If access to
that is required it will need to be handled differently, e.g. via a
FUSE/NBD export.
Such accesses are currently not done for running VMs via '-drive'
either, so there still is feature parity.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
For '-drive', qemu-server sets special cache options for EFI disk
using RBD. In preparation to seamlessly switch to the new '-blockdev'
interface, do the same here. Note that the issue from bug #3329, which
is solved by these cache options, still affects current versions.
With -blockdev, the cache options are split up. While cache.direct and
cache.no-flush can be set in the -blockdev options, cache.writeback is
a front-end property and was intentionally removed from the -blockdev
options by QEMU commit aaa436f998 ("block: Remove cache.writeback from
blockdev-add"). It needs to be configured as the 'write-cache'
property for the ide-hd/scsi-hd/virtio-blk device.
The default is already 'writeback' and no cache mode can be set for an
EFI drive configuration in Proxmox VE currently, so there will not be
a clash.
┌─────────────┬─────────────────┬──────────────┬────────────────┐
│ │ cache.writeback │ cache.direct │ cache.no-flush │
├─────────────┼─────────────────┼──────────────┼────────────────┤
│writeback │ on │ off │ off │
├─────────────┼─────────────────┼──────────────┼────────────────┤
│none │ on │ on │ off │
├─────────────┼─────────────────┼──────────────┼────────────────┤
│writethrough │ off │ off │ off │
├─────────────┼─────────────────┼──────────────┼────────────────┤
│directsync │ off │ on │ off │
├─────────────┼─────────────────┼──────────────┼────────────────┤
│unsafe │ on │ off │ on │
└─────────────┴─────────────────┴──────────────┴────────────────┘
Table from 'man kvm'.
Alternatively, the option could only be set once when allocating the
RBD volume. However, then we would need to detect all cases were a
volume could potentially be used as an EFI disk later. Having a custom
disk type would help a lot there. The approach here was chosen as it
is catch-all and should not be too costly either.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
using the new top-level `make tidy` target, which calls perltidy via
our wrapper to enforce the desired style as closely as possible.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Hard-coding a list of sensitive properties means that custom plugins
cannot define their own sensitive properties for the on_add/on_update
hooks.
Have plugins declare the list of their sensitive properties in the
plugin data. For backwards compatibility, return the previously
hard-coded list if no such declaration is present.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Reviewed-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Link: https://lore.proxmox.com/20250404133204.239783-6-f.ebner@proxmox.com
