Commit Graph

6 Commits

Author SHA1 Message Date
Michal Privoznik
88957116c9 qemu: Use memory-backend-* for regular guest memory
So far, Libvirt configures memory-backend-* for memory hotplug,
possibly NUMA nodes and in a few other cases. This patch
switches to constructing the memory-backend-* command line for
all cases. To keep ability to migrate guests a little hack is
used: the ID of the object is set to the one that QEMU uses
internally anyways. These IDs are stable (first started to appear
somewhere around v0.13.0-rc0~96) and can't change.

In fact, this patch does exactly what QEMU does internally. The
reason for moving the logic into Libvirt is that QEMU wants to
deprecate the old style of specifying memory.

So far, only x84_64 test cases are changed, because tests for
other architectures use older capabilities, which still lack the
QEMU_CAPS_MACHINE_MEMORY_BACKEND capability and they don't report
the RAM ID.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1836043

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-10-01 12:06:22 +02:00
Peter Krempa
ec69f0190b qemu: command: Stop formatting of 'scsi=off' for virtio-blk-pci
The property was deprecated. Don't format it based on the new capability
if the user didn't explicitly request it.

https://bugzilla.redhat.com/show_bug.cgi?id=1829550

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-05-12 06:55:00 +02:00
Peter Krempa
1a86e3b24a qemu: block: Split up formatting of JSON props for 'raw' and 'luks' drivers
qemuBlockStorageSourceGetFormatRawProps aggregated both formats but
since we now have props specific for either of those formats it's
unwanted to aggregate the code such way. Split out the 'luks' props
formatter into qemuBlockStorageSourceGetFormatLUKSProps.

The wrong separation demonstrates istself on formatting of the 'size'
and 'offset' attributes for the 'luks' driver which does not conform
to the qapi schema.

https://bugzilla.redhat.com/show_bug.cgi?id=1814975

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-20 09:47:16 +01:00
Peter Krempa
7393be3bbc qemuBlockStorageSourceNeedsStorageSliceLayer: Deal with 'luks' files
The 'luks' driver in qemu is as any other non-raw format driver and thus
doesn't support the properties for 'slice'. Since libvirt considers
luks files to be raw+encryption we need to special case them when
dealing with the slice.

https://bugzilla.redhat.com/show_bug.cgi?id=1814975

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-20 09:47:16 +01:00
Peter Krempa
2e3d17d7a3 qemuxml2argvdata/disk-slices: Add test case for 'luks' encryption
Since libvirt handles the luks encryption in a weird special way
(raw+encryption) we should really test that case with slices as well.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-20 09:47:16 +01:00
Peter Krempa
293e7750c9 tests: qemu: Add test data for the new <slice> element
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-14 16:32:21 +01:00