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conf: Introduce dynamicMemslots attribute for virtio-mem

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Introduced in v8.2.0-rc0~74^2~2, QEMU now allows setting
.dynamic-memslots attribute for virtio-mem-pci devices. When
turned on, it allows memory exposed to guest to be split into
multiple memslots and thus smaller memory footprint (see the
original commit for detailed explanation).

Therefore, introduce new <target/> attribute which will control
that QEMU knob.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Michal Privoznik
2024-01-04 10:03:36 +01:00
parent 3d8445c25d
commit 5325820585
5 changed files with 37 additions and 2 deletions
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2
tests/qemuxmlconfdata/memory-hotplug-virtio-mem.xml
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@@ -60,7 +60,7 @@
<nodemask>1-3</nodemask>
<pagesize unit='KiB'>2048</pagesize>
</source>
<target>
<target dynamicMemslots='yes'>
<size unit='KiB'>2097152</size>
<node>0</node>
<block unit='KiB'>2048</block>