linux-kernel - Re: [PATCH v2 1/1] s390: virtio: let arch accept devices without IOMMU feature

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Message-ID: <588f4b63-1e94-521a-b011-f1d8ced75173@linux.ibm.com>
Date:   Tue, 16 Jun 2020 09:33:04 +0200
From:   Pierre Morel <pmorel@...ux.ibm.com>
To:     Jason Wang <jasowang@...hat.com>, linux-kernel@...r.kernel.org
Cc:     pasic@...ux.ibm.com, borntraeger@...ibm.com, frankja@...ux.ibm.com,
        mst@...hat.com, cohuck@...hat.com, kvm@...r.kernel.org,
        linux-s390@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v2 1/1] s390: virtio: let arch accept devices without
 IOMMU feature



On 2020-06-16 08:22, Jason Wang wrote:
> 
> On 2020/6/15 下午8:39, Pierre Morel wrote:
>> An architecture protecting the guest memory against unauthorized host
>> access may want to enforce VIRTIO I/O device protection through the
>> use of VIRTIO_F_IOMMU_PLATFORM.
>>
>> Let's give a chance to the architecture to accept or not devices
>> without VIRTIO_F_IOMMU_PLATFORM.
>>
>> Signed-off-by: Pierre Morel <pmorel@...ux.ibm.com>
> 
> 
> Acked-by: Jason Wang <jasowang@...hat.com>

Thanks,

Pierre



-- 
Pierre Morel
IBM Lab Boeblingen