From: Chris Wright <chrisw@sous-sol.org>
To: Avi Kivity <avi@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>,
"Michael S. Tsirkin" <mst@redhat.com>, Tom Lyon <pugs@cisco.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
chrisw@sous-sol.org, hjk@linutronix.de, gregkh@suse.de,
aafabbri@cisco.com, scofeldm@cisco.com
Subject: Re: [PATCH] VFIO driver: Non-privileged user level PCI drivers
Date: Wed, 2 Jun 2010 09:53:21 -0700 [thread overview]
Message-ID: <20100602165321.GU8301@sequoia.sous-sol.org> (raw)
In-Reply-To: <4C063ECB.8010706@redhat.com>
* Avi Kivity (avi@redhat.com) wrote:
> The interface would only work for clients which support it: kvm,
> vhost, and iommu/devices with restartable dma.
BTW, there is no such thing as restartable dma. There is a provision in
new specs (read: no real hardware) that allows a device to request pages
before using them. So it's akin to demand paging, but the demand is an
explicit request rather than a page fault.
thanks,
-chris
next prev parent reply other threads:[~2010-06-02 16:54 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-28 23:07 [PATCH] VFIO driver: Non-privileged user level PCI drivers Tom Lyon
2010-05-28 23:36 ` Randy Dunlap
2010-05-28 23:56 ` Randy Dunlap
2010-05-29 11:55 ` Arnd Bergmann
2010-05-29 12:16 ` Avi Kivity
2010-05-30 12:19 ` Michael S. Tsirkin
2010-05-30 12:27 ` Avi Kivity
2010-05-30 12:49 ` Michael S. Tsirkin
2010-05-30 13:01 ` Avi Kivity
2010-05-30 13:03 ` Michael S. Tsirkin
2010-05-30 13:13 ` Avi Kivity
2010-05-30 14:53 ` Michael S. Tsirkin
2010-05-31 11:50 ` Avi Kivity
2010-05-31 17:10 ` Michael S. Tsirkin
2010-06-01 8:10 ` Avi Kivity
2010-06-01 9:55 ` Michael S. Tsirkin
2010-06-01 10:28 ` Avi Kivity
2010-06-01 10:46 ` Michael S. Tsirkin
2010-06-01 12:41 ` Avi Kivity
2010-06-02 9:45 ` Joerg Roedel
2010-06-02 9:49 ` Avi Kivity
2010-06-02 10:04 ` Joerg Roedel
2010-06-02 10:09 ` Michael S. Tsirkin
2010-06-02 11:21 ` Avi Kivity
2010-06-02 16:53 ` Chris Wright [this message]
2010-06-06 13:44 ` Avi Kivity
2010-06-02 10:15 ` Michael S. Tsirkin
2010-06-02 10:26 ` Joerg Roedel
2010-06-01 21:26 ` Tom Lyon
2010-06-02 2:59 ` Avi Kivity
2010-06-02 5:29 ` Chris Wright
2010-06-02 5:40 ` Avi Kivity
2010-06-02 4:29 ` Alex Williamson
2010-06-02 4:59 ` Tom Lyon
2010-06-02 5:08 ` Avi Kivity
2010-06-02 9:53 ` Joerg Roedel
2010-06-02 9:42 ` Joerg Roedel
2010-06-02 9:50 ` Avi Kivity
2010-06-02 9:53 ` Michael S. Tsirkin
2010-06-02 10:19 ` Joerg Roedel
2010-06-02 10:21 ` Michael S. Tsirkin
2010-06-02 10:35 ` Joerg Roedel
2010-06-02 10:38 ` Michael S. Tsirkin
2010-06-02 11:12 ` Joerg Roedel
2010-06-02 11:21 ` Michael S. Tsirkin
2010-06-02 12:19 ` Joerg Roedel
2010-06-02 12:25 ` Avi Kivity
2010-06-02 12:50 ` Joerg Roedel
2010-06-02 13:06 ` Avi Kivity
2010-06-02 13:53 ` Joerg Roedel
2010-06-02 13:17 ` Michael S. Tsirkin
2010-06-02 14:01 ` Joerg Roedel
2010-06-02 12:34 ` Michael S. Tsirkin
2010-06-02 13:02 ` Joerg Roedel
2010-06-02 17:46 ` Chris Wright
2010-06-02 18:09 ` Tom Lyon
2010-06-02 19:46 ` Joerg Roedel
2010-06-03 6:23 ` Avi Kivity
2010-06-03 21:41 ` Tom Lyon
2010-06-06 9:54 ` Michael S. Tsirkin
2010-06-07 19:01 ` Tom Lyon
2010-06-08 21:22 ` Michael S. Tsirkin
2010-06-02 10:44 ` Michael S. Tsirkin
2010-05-30 12:59 ` Avi Kivity
2010-05-31 17:17 ` Alan Cox
2010-06-01 21:29 ` Tom Lyon
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