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Subject: Re: [GIT PULL 0/1] KVM: s390: Fix for running nested under z/VM
References: <20200506115945.13132-1-borntraeger@de.ibm.com>
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <918fcace-dac6-bc33-6713-19703fc96180@redhat.com>
Date: Wed, 6 May 2020 14:12:48 +0200
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To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: KVM <kvm@vger.kernel.org>, Janosch Frank <frankja@linux.vnet.ibm.com>, David Hildenbrand <david@redhat.com>, Cornelia Huck <cohuck@redhat.com>, linux-s390 <linux-s390@vger.kernel.org>, Claudio Imbrenda <imbrenda@linux.ibm.com>, Tony Krowiak <akrowiak@linux.ibm.com>, Pierre Morel <pmorel@linux.ibm.com>

On 06/05/20 13:59, Christian Borntraeger wrote:
> Paolo,
> a fix for kvm/master.
> 
> The following changes since commit 2a173ec993baa6a97e7b0fb89240200a88d90746:
> 
>   MAINTAINERS: add a reviewer for KVM/s390 (2020-04-20 11:24:00 +0200)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git  tags/kvm-s390-master-5.7-3
> 
> for you to fetch changes up to 5615e74f48dcc982655543e979b6c3f3f877e6f6:
> 
>   KVM: s390: Remove false WARN_ON_ONCE for the PQAP instruction (2020-05-05 11:15:05 +0200)
> 
> ----------------------------------------------------------------
> KVM: s390: Fix for running nested uner z/VM
> 
> There are circumstances when running nested under z/VM that would trigger a
> WARN_ON_ONCE. Remove the WARN_ON_ONCE. Long term we certainly want to make this
> code more robust and flexible, but just returning instead of WARNING makes
> guest bootable again.
> 
> ----------------------------------------------------------------
> Christian Borntraeger (1):
>       KVM: s390: Remove false WARN_ON_ONCE for the PQAP instruction
> 
>  arch/s390/kvm/priv.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 

Pulled, thanks.

Paolo