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From: Christoph Hellwig <hch@infradead.org>
To: Jason Wang <jasowang@redhat.com>
Cc: mst@redhat.com, virtualization@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, xieyongji@bytedance.com,
	stefanha@redhat.com, file@sect.tu-berlin.de,
	ashish.kalra@amd.com, martin.radev@aisec.fraunhofer.de,
	konrad.wilk@oracle.com, kvm@vger.kernel.org
Subject: Re: [RFC PATCH 0/7] Untrusted device support for virtio
Date: Thu, 22 Apr 2021 07:31:28 +0100
Message-ID: <20210422063128.GB4176641@infradead.org> (raw)
In-Reply-To: <20210421032117.5177-1-jasowang@redhat.com>

On Wed, Apr 21, 2021 at 11:21:10AM +0800, Jason Wang wrote:
> The behaivor for non DMA API is kept for minimizing the performance
> impact.

NAK.  Everyone should be using the DMA API in a modern world.  So
treating the DMA API path worse than the broken legacy path does not
make any sense whatsoever.

  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-21  3:21 Jason Wang
2021-04-21  3:21 ` [RFC PATCH 1/7] virtio-ring: maintain next in extra state for packed virtqueue Jason Wang
2021-04-21  3:21 ` [RFC PATCH 2/7] virtio_ring: rename vring_desc_extra_packed Jason Wang
2021-04-21  3:21 ` [RFC PATCH 3/7] virtio-ring: factor out desc_extra allocation Jason Wang
2021-04-21  3:21 ` [RFC PATCH 4/7] virtio_ring: secure handling of mapping errors Jason Wang
2021-04-21  3:21 ` [RFC PATCH 5/7] virtio_ring: introduce virtqueue_desc_add_split() Jason Wang
2021-04-21  3:21 ` [RFC PATCH 6/7] virtio: use err label in __vring_new_virtqueue() Jason Wang
2021-04-21  3:21 ` [RFC PATCH 7/7] virtio-ring: store DMA metadata in desc_extra for split virtqueue Jason Wang
2021-04-22  6:31 ` Christoph Hellwig [this message]
2021-04-22  8:19   ` [RFC PATCH 0/7] Untrusted device support for virtio Jason Wang
2021-04-23 20:14     ` Michael S. Tsirkin
2021-04-25  1:43       ` Jason Wang
2021-04-28 21:06 ` Konrad Rzeszutek Wilk
2021-04-29  4:16   ` Jason Wang
2021-06-04 15:17     ` Konrad Rzeszutek Wilk
2021-06-07  2:46       ` Jason Wang

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