From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sebastian Ott <sebott@linux.ibm.com>
Subject: Re: [PATCH v2 4/8] s390/airq: use DMA memory for adapter
 interrupts
Date: Sat, 25 May 2019 11:51:02 +0200 (CEST)
Message-ID: <alpine.LFD.2.21.1905251150350.3359@schleppi>
References: <20190523162209.9543-1-mimu@linux.ibm.com>
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To: Michael Mueller <mimu@linux.ibm.com>
Cc: Farhan Ali <alifm@linux.ibm.com>, Linux-S390 Mailing List <linux-s390@vger.kernel.org>, Thomas Huth <thuth@redhat.com>, Claudio Imbrenda <imbrenda@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, KVM Mailing List <kvm@vger.kernel.org>, "Michael S . Tsirkin" <mst@redhat.com>, Pierre Morel <pmorel@linux.ibm.com>, Cornelia Huck <cohuck@redhat.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, Eric Farman <farman@linux.ibm.com>, virtualization@lists.linux-foundation.org, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Christoph Hellwig <hch@infradead.org>, Viktor Mihajlovski <mihajlov@linux.ibm.com>, Janosch Frank <frankja@linux.ibm.com>
List-Id: virtualization@lists.linuxfoundation.org


On Thu, 23 May 2019, Michael Mueller wrote:
> From: Halil Pasic <pasic@linux.ibm.com>
> 
> Protected virtualization guests have to use shared pages for airq
> notifier bit vectors, because hypervisor needs to write these bits.
> 
> Let us make sure we allocate DMA memory for the notifier bit vectors by
> replacing the kmem_cache with a dma_cache and kalloc() with
> cio_dma_zalloc().
> 
> Signed-off-by: Halil Pasic <pasic@linux.ibm.com>

Reviewed-by: Sebastian Ott <sebott@linux.ibm.com>