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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Changpeng Liu <changpeng.liu@intel.com>,
	qemu-devel@nongnu.org, james.r.harris@intel.com,
	keith.busch@intel.com, famz@redhat.com, stefanha@gmail.com,
	stefanha@redhat.com
Subject: Re: [Qemu-devel] [RFC v1] block/NVMe: introduce a new vhost NVMe host device to QEMU
Date: Tue, 23 Oct 2018 19:39:00 -0400	[thread overview]
Message-ID: <20181023193613-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <7711f157-5863-fc75-0730-a631362ffd06@redhat.com>

On Tue, Jan 16, 2018 at 06:06:56PM +0100, Paolo Bonzini wrote:
> Second, virtio-based vhost-user remains QEMU's preferred method for
> high-performance I/O in guests.  Discard support is missing and that is
> important for SSDs; that should be fixed in the virtio spec.

BTW could you reply on the thread of the patch
	virtio_blk: add discard and write zeroes support

Christoph Hellwig thinks we should change the spec and defer
implementation until we do. What's your take on this?


-- 
MST

  parent reply	other threads:[~2018-10-23 23:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-15  8:01 [Qemu-devel] [RFC v1] Introduce a new NVMe host device type to QEMU Changpeng Liu
2018-01-15  8:01 ` [Qemu-devel] [RFC v1] block/NVMe: introduce a new vhost NVMe host device " Changpeng Liu
2018-01-16 17:06   ` Paolo Bonzini
2018-01-17  0:53     ` Liu, Changpeng
2018-01-17  7:10       ` Paolo Bonzini
2018-10-23 23:39     ` Michael S. Tsirkin [this message]
2018-10-24  8:23       ` Liu, Changpeng
2018-01-29 15:29   ` Stefan Hajnoczi
2018-01-29 15:40     ` Harris, James R
2018-01-30  1:19     ` Liu, Changpeng

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