I was checking this and there's no issue for having virtual machines on
Power9 bare metal, tried jammy and noble VMs on a host with Noble+
kernel 6.8 (currently -proposed).

For the nested virtualization scenario, on the Power10 PowerVM system -
we don't have the required firmware for it, but I was either way
checking it on a Power10 LPAR with Noble+kernel 6.8:

I also see the installer crashing.

subiquity  22.02.2+git2049.f759d193  5537   latest/stable/…  canonical**
classic

The installer crashes with  
```
SourcePackage: subiquity
Tags: subiquity
Title: Installer UI crashed with AttributeError
Traceback:
 Traceback (most recent call last):
   File 
"/snap/subiquity/5537/lib/python3.10/site-packages/subiquity/client/client.py", 
line 394, in run
     await super().run()
   File 
"/snap/subiquity/5537/lib/python3.10/site-packages/subiquitycore/tui.py", line 
351, in run
     await super().run()
   File 
"/snap/subiquity/5537/lib/python3.10/site-packages/subiquitycore/core.py", line 
134, in run
     raise exc
   File "/snap/subiquity/5537/usr/lib/python3.10/asyncio/events.py", line 80, 
in _run
     self._context.run(self._callback, *self._args)
   File 
"/snap/subiquity/5537/usr/lib/python3/dist-packages/urwid/main_loop.py", line 
1454, in faux_idle_callback
     callback()
   File 
"/snap/subiquity/5537/usr/lib/python3/dist-packages/urwid/main_loop.py", line 
574, in entering_idle
     self.draw_screen()
   File 
"/snap/subiquity/5537/usr/lib/python3/dist-packages/urwid/main_loop.py", line 
588, in draw_screen
     canvas = self._topmost_widget.render(self.screen_size, focus=True)
   File "/snap/subiquity/5537/usr/lib/python3/dist-packages/urwid/widget.py", 
line 141, in cached_render
     canv = CanvasCache.fetch(self, cls, size, focus)
   File "/snap/subiquity/5537/usr/lib/python3/dist-packages/urwid/canvas.py", 
line 116, in fetch
     cls.hits += 1 # more stats
 AttributeError: 'int' object has no attribute 'hits'   
```
Please, let me know if you can share any output when it fails.

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https://bugs.launchpad.net/bugs/2055126

Title:
  Unable to bring up a guest using 24.04(Noble Numbat) ISO

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