Hi,
this is not a show stopper at all.
It is just a warning and it is fine.
It is a trade-off between the "ease to use nested virt" vs "this warning".
For example on an intel chip you'd get:
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.80000001H:ECX.svm
And that as well is no issue.
Since this is Ubuntu downstream decision to prefer simplicity for nested
virt I marked upstream qemu task invalid. There you'd not see the
warning, but instead would have to jump a few extra whoops to get
nesting working.
And finally, this code really is like that for longer than I take a look at it,
so it might be that today one could solve it differently. There could be much
more magic code to make it work as comfortable on both platforms and avoid the
warning, but honestly - it wasn't an issue for many years, and I think it still
is none.
So for the Ubuntu portion, I'll set confirmed+low(est) prio until it is clear
that this really breaks something it didn't in the past years.
** Changed in: qemu (Ubuntu)
Status: Incomplete => Confirmed
** Changed in: qemu (Ubuntu)
Importance: Undecided => Wishlist
** Changed in: qemu (Ubuntu)
Importance: Wishlist => Low
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https://bugs.launchpad.net/bugs/1722074
Title:
warning: host doesn't support requested feature: CPUID.01H:ECX.vmx
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