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Stefan Reiter ac0077cc33 Use 'QEMU version' -> '+pve-version' mapping for machine types
The previously introduced approach can fail for pinned versions when a
new QEMU release is introduced. The saner approach is to use a mapping
that gives one pve-version for each QEMU release.

Fortunately, the old system has not been bumped yet, so we can still
change it without too much effort.

QEMU versions without a mapping are assumed to be pve0, 4.1 is mapped to
pve1 since thats what we had as our default previously.

Pinned machine versions (i.e. pc-i440fx-4.1) are always assumed to be
pve0, for specific pve-versions they'd have to be pinned as well (i.e.
pc-i440fx-4.1+pve1).

The new logic also makes the pve-version dynamic, and starts VMs with
the lowest possible 'feature-level', i.e. if a feature is only available
with 4.1+pve2, but the VM isn't using it, we still start it with
4.1+pve0.

We die if we don't support a version that is requested from us. This
allows us to use the pve-version as live-migration blocks (i.e. bumping
the version and then live-migrating a VM which uses the new feature (so
is running with the bumped version) to an outdated node will present the
user with a helpful error message and fail instead of silently modifying
the config and only failing *after* the migration).

$version_guard is introduced in config_to_command to use for features
that need to check pve-version, it automatically handles selecting the
newest necessary pve-version for the VM.

Tests have to be adjusted, since all of them now resolve to pve0 instead
of pve1. EXPECT_ERROR matching is changed to use 'eq' instead of regex
to allow special characters in error messages.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
2020-02-12 10:32:57 +01:00
debian bump version to 6.1-6 2020-02-10 06:40:45 +01:00
PVE Use 'QEMU version' -> '+pve-version' mapping for machine types 2020-02-12 10:32:57 +01:00
qemu-configs move qemu-configs to own directory 2019-09-24 18:59:35 +02:00
qmeventd buildsys: remove unused or duplicate directories 2019-09-24 19:06:07 +02:00
test Use 'QEMU version' -> '+pve-version' mapping for machine types 2020-02-12 10:32:57 +01:00
vm-network-scripts move VM network (hook) scripts to own directory 2019-09-24 18:59:35 +02:00
.gitignore d/cointrol is not autogenerated anymore, remove from .gitignore 2019-01-31 12:10:51 +01:00
bootsplash.jpg add seabios bootsplash and use it 2016-09-08 12:22:01 +02:00
bootsplash.xcf add seabios bootsplash and use it 2016-09-08 12:22:01 +02:00
Makefile cleanup build artificats before doc clean 2019-11-26 13:53:18 +01:00
modules-load.conf remove unnecessary init.d, postint, postrm and qmupdate scripts 2015-02-27 16:09:41 +01:00
qm convert qmrestore into a PVE::CLI class 2015-10-05 13:10:24 +02:00
qmextract remove legacy sparsecp 2017-08-23 10:03:37 +02:00
qmrestore convert qmrestore into a PVE::CLI class 2015-10-05 13:10:24 +02:00