Re: [Qemu-devel] [PATCH v2 00/18] s390x: flic rework, tcg flic support and STSI

[Cornelia Huck]

On Thu, 25 Jan 2018 13:42:41 +0100
Cornelia Huck <address@hidden> wrote:

> On Wed, 17 Jan 2018 18:40:29 +0100
> David Hildenbrand <address@hidden> wrote:
> 
> > This patch series implements floating interrupt support for TCG and fixes
> > STSI so we can remove warnings related to s390x SMP and MTTCG.
> > 
> > KVM code has to be touched in order to factor out the injection routines
> > into the flic ("s390x/flic: factor out injection of floating interrupts").
> > Basic testing didn't reveal any problems so far.
> > 
> > With this series I am now able to run fedora 26/27 and Ubuntu 17.10+ with
> > 16 VCPUs (MTTCG) on a 8CPU host, doing a make -j16 in the guest. I got
> > nasty stalls in the guest beforehand.
> > 
> > Now also included: More flic related caching to avoid recurring
> > conversions.  
> 
> Hm...
> 
> (qemu) device_add virtio-net-ccw,id=xxx
> (qemu) **
> ERROR:/home/cohuck/git/qemu/target/s390x/excp_helper.c:342:do_mchk_interrupt: 
> assertion failed: (env->cregs[14] & CR0_SERVICE_SC)
> Aborted (core dumped)

Works much better if you check for CR14_CHANNEL_REPORT_SC instead :)