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Date: Tue, 11 Jun 2019 12:19:58 +0200
From: Cornelia Huck <cohuck@redhat.com>
Subject: Re: [PATCH v4 8/8] virtio/s390: make airq summary indicators DMA
Message-ID: <20190611121958.28cea8e8.cohuck@redhat.com>
In-Reply-To: <20190606115127.55519-9-pasic@linux.ibm.com>
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To: Halil Pasic <pasic@linux.ibm.com>
Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, Sebastian Ott <sebott@linux.ibm.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, virtualization@lists.linux-foundation.org, "Michael S. Tsirkin" <mst@redhat.com>, Christoph Hellwig <hch@infradead.org>, Thomas Huth <thuth@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Viktor Mihajlovski <mihajlov@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Janosch Frank <frankja@linux.ibm.com>, Michael Mueller <mimu@linux.ibm.com>, Claudio Imbrenda <imbrenda@linux.ibm.com>, Farhan Ali <alifm@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, "Jason J. Herne" <jjherne@linux.ibm.com>

On Thu,  6 Jun 2019 13:51:27 +0200
Halil Pasic <pasic@linux.ibm.com> wrote:

> Hypervisor needs to interact with the summary indicators, so these
> need to be DMA memory as well (at least for protected virtualization
> guests).
> 
> Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
> ---
>  drivers/s390/virtio/virtio_ccw.c | 32 ++++++++++++++++++++++++--------
>  1 file changed, 24 insertions(+), 8 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>