Re: Issues on Zen4 (hw12) runner

[Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

On Mon, May 12, 2025 at 04:19:59PM +0200, Roger Pau Monné wrote:
> On Mon, May 12, 2025 at 03:31:19PM +0200, Marek Marczykowski-Górecki wrote:
> > On Mon, May 12, 2025 at 12:26:09PM +0200, Roger Pau Monné wrote:
> > > On Thu, May 08, 2025 at 10:44:36PM +0200, Marek Marczykowski-Górecki 
> > > wrote:
> > > > Hi,
> > > > 
> > > > I wanted to post another revision of the series adding hw12 runner,
> > > > hoping that all known issues are fixed now, but unfortunately there is
> > > > still something broken. I've rebased my series on top of staging
> > > > (ed9488a0d) and got this pipeline:
> > > > 
> > > > https://gitlab.com/xen-project/people/marmarek/xen/-/pipelines/1807819142
> > > > (note due to some added debugging, some tests are incorrectly marked as
> > > > success even if they failed...)
> > > > 
> > > > 1. USB ethernet doesn't work on PVH dom0: 
> > > > https://gitlab.com/xen-project/people/marmarek/xen/-/jobs/9978694739
> > > > There supposed to be an USB ethernet device connected to the USB
> > > > controller at c3:00.4. In the PV dom0 case it's detected as:
> > > > 
> > > >     [    3.911555] usb 7-1.4: new high-speed USB device number 3 using 
> > > > xhci_hcd
> > > >     [    4.004201] usb 7-1.4: New USB device found, idVendor=0bda, 
> > > > idProduct=8153, bcdDevice=30.00
> > > >     [    4.004675] usb 7-1.4: New USB device strings: Mfr=1, Product=2, 
> > > > SerialNumber=6
> > > >     [    4.005079] usb 7-1.4: Product: USB 10/100/1000 LAN
> > > >     [    4.005349] usb 7-1.4: Manufacturer: Realtek
> > > >     [    4.005599] usb 7-1.4: SerialNumber: 684D35
> > > > 
> > > > But it's not there on PVH. The USB controller itself is detected, just
> > > > not device(s) connected to it. This applies to other controllers too
> > > > (there should be about 3 or 4 other USB devices - none of them show up).
> > > > 
> > > > 2. There is a bunch of "unhandled memory read" errors during PVH dom0
> > > > startup: 
> > > > https://gitlab.com/xen-project/people/marmarek/xen/-/jobs/9978694739
> > > > 
> > > >     (XEN) [    4.026323] arch/x86/hvm/emulate.c:417:d0v0 unhandled 
> > > > memory read from 0xfedc0020 size 1
> > > >     (XEN) [    4.026789] arch/x86/hvm/emulate.c:417:d0v0 unhandled 
> > > > memory read from 0xfedc0021 size 1
> > > >     (XEN) [    4.027247] arch/x86/hvm/emulate.c:417:d0v0 unhandled 
> > > > memory read from 0xfedc0020 size 1
> > > >     (XEN) [    4.027671] arch/x86/hvm/emulate.c:417:d0v0 unhandled 
> > > > memory read from 0xfedc0021 size 1
> > > >     ...
> > > > 
> > > > This repeats several times. Could be related to the USB issue above?
> > > 
> > > Can you try with dom0=pf-fixup?  Those unhandled accesses might be the
> > > cause of the USB issues.
> > 
> > It did got rid of those messages, but USB still doesn't work:
> > https://gitlab.com/xen-project/people/marmarek/xen/-/jobs/10006580289
> 
> Hm, is it possible that the usage of console=xhci is interfering with
> USB devices?  Could you try to boot without console=xhci and see if
> you can still reproduce the issue?  You will need the physical device
> by your side, which I'm not sure it's possible.  Don't know if you
> host those remotely somewhere.

I can try, but will need a proper driver there (in dom0?) - AFAIR VGA
nor efifb doesn't output to HDMI there (and eDP is not connected).
Anyway, it's IMO unlikely, given it works just fine with PV dom0...

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab

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