Issue confirmed on Eoan, but not existing on Bionic nor on Focal.
On Focal I get Broadwell, Haswell, Ivy and Nehalem types in addition to the old
set (my real chip is a i7-8550U so that seems ok for my case).
It seems to contain only the <=core2duo chips which means it most likely
filters out on some feature that it considers required for all the other
more modern types.
I don't see the mistake in libvirt - the detection is correct and mostly
based on cpu features and cpuids.
I was trying to force a new chip which you could try as well.
To do so either use virsh-edit or in virt-manager "preferences"->"enable XML
editing" and then set a new type like the "SkyLake-Client" you look for.
If you then afterwards try to start the guest it will list you which features
it is missing.
Please report those back to compare with the definition.
Also could you attach a full:
$ virsh capabilities
$ virsh domcapabilities
$ cat /proc/cpuinfo
** Also affects: libvirt (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: libvirt (Ubuntu)
Status: New => Fix Released
** Changed in: libvirt (Ubuntu Eoan)
Status: New => Incomplete
** Package changed: libvirt (Ubuntu) => virt-manager (Ubuntu)
** Also affects: libvirt (Ubuntu)
Importance: Undecided
Status: New
** Changed in: libvirt (Ubuntu)
Status: New => Invalid
** Changed in: libvirt (Ubuntu Eoan)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1861643
Title:
libvirt CPU model selection missing
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