Re: [PATCH v7 00/41] target/arm: Implement ARMv8.1-VHE

[Jonathan Cameron]

On Tue, 31 Mar 2020 16:33:24 +0100
Jonathan Cameron <address@hidden> wrote:

> On Fri, 7 Feb 2020 11:52:46 +0000
> Peter Maydell <address@hidden> wrote:
> 
> > On Thu, 6 Feb 2020 at 10:54, Richard Henderson
> > <address@hidden> wrote:  
> > >
> > > Version 7 has one more tweak to the vhe tlb flushing
> > > that Peter asked for.  All patches have reviews.
> > >
> > >    
> > 
> > 
> > 
> > Applied to target-arm.next, thanks.  
> 
> Hi Peter / Richard.
> 
> Just wondering if there are any known issues with this?
> 
> I'm trying to test with mainline kernel 5.6, and the qemu rc0.
> Host emulating 4 core cpu=max,virtualization=on, guest 1 core.
> 
> I get one of those lovely init died messages.
> (copy typed between screens)
> 
> Run /sbin/init as init process
> Kernel panic - not synching: Attempted to kill init! exitcode =0x0000000b
> 
> Nothing obvious in the trace for why.
> 
> Same kernel / image / setup etc works fine when tested with a real
> VHE supporting machine as the host (kunpeng920).

Another data point.  All seems fine with cpu=cortex-a57,virtualization=on
but obviously without VHE.

Thanks to Salil for pointing out I'd not run this combination.

Jonathan

> 
> Also fine running as a guest inside the emulated host without kvm.
> 
> This is a bit too much of a case of Russian dolls so I'm not even sure
> how to get any useful debug information.
> 
> Thanks,
> 
> Jonathan
> 
> 
> > 
> > -- PMM
> >   
>