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 Wed, 2 Jun 2021 13:26:35 +0200 (CEST)
Subject: Re: [FSL P50x0] KVM HV doesn't work anymore
To: Nicholas Piggin <npiggin@gmail.com>,
 Christophe Leroy <christophe.leroy@csgroup.eu>,
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From: Christian Zigotzky <chzigotzky@xenosoft.de>
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On 20 May 2021 at 01:07am, Nicholas Piggin wrote:
> Hmm, okay that probably rules out those notifier changes then.
> Can you remind me were you able to rule these out as suspects?
>
> 8f6cc75a97d1 powerpc: move norestart trap flag to bit 0
> 8dc7f0229b78 powerpc: remove partial register save logic
> c45ba4f44f6b powerpc: clean up do_page_fault
> d738ee8d56de powerpc/64e/interrupt: handle bad_page_fault in C
> ceff77efa4f8 powerpc/64e/interrupt: Use new interrupt context tracking scheme
> 097157e16cf8 powerpc/64e/interrupt: reconcile irq soft-mask state in C
> 3db8aa10de9a powerpc/64e/interrupt: NMI save irq soft-mask state in C
> 0c2472de23ae powerpc/64e/interrupt: use new interrupt return
> dc6231821a14 powerpc/interrupt: update common interrupt code for
> 4228b2c3d20e powerpc/64e/interrupt: always save nvgprs on interrupt
> 5a5a893c4ad8 powerpc/syscall: switch user_exit_irqoff and trace_hardirqs_off order
>
> Thanks,
> Nick
Hi Nick,

I tested these commits above today and all works with -smp 4. [1]

Smp 4 still doesn't work with the RC4 of kernel 5.13 on quad core e5500 
CPUs with KVM HV. I use -smp 3 currently.

What shall I test next?

Thanks,
Christian

[1] https://forum.hyperion-entertainment.com/viewtopic.php?p=53367#p53367