Re: [PATCH 00/10] Introduce virtio-mem <memory/> model
On 2/4/21 3:33 AM, Jing Qi wrote:
Michal,
I checked the virtio_mem module and it's loaded -
lsmod |grep virtio_mem
virtio_mem 32768 0
And I can't make the actual value change to non-zerio.
-> virsh update-memory pc --requested-size 256M
or
->virsh setmem pc 1000M
This is unrelated. 'setmem' modifies balloon not virtio-mem-pci device.
<memory model='virtio-mem'>
<target>
<size unit='KiB'>524288</size>
<node>0</node>
<block unit='KiB'>2048</block>
<requested unit='KiB'>262144</requested>
<actual unit='KiB'>0</actual>
</target>
<alias name='virtiomem0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x0a'
function='0x0'/>
</memory>
Any other suggestions ?
Is there something in the guest dmesg? This is what I get:
virsh update-memory-device gentoo --alias ua-virtiomem 256M
[ 17.619060] virtio_mem virtio3: plugged size: 0x0
[ 17.619062] virtio_mem virtio3: requested size: 0x10000000
[ 17.653072] Built 4 zonelists, mobility grouping on. Total pages:
2065850
[ 17.653074] Policy zone: Normal
And I can see actual size updated:
<memory model='virtio-mem'>
<source>
<pagesize unit='KiB'>2048</pagesize>
</source>
<target>
<size unit='KiB'>4194304</size>
<node>0</node>
<block unit='KiB'>2048</block>
<requested unit='KiB'>262144</requested>
<actual unit='KiB'>262144</actual>
</target>
<alias name='ua-virtiomem'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x08'
function='0x0'/>
</memory>
Maybe David knows the answer.
Michal