From: Joerg Roedel <joro@8bytes.org>
To: Tom Lyon <pugs@lyon-about.com>
Cc: Alex Williamson <alex.williamson@redhat.com>,
Avi Kivity <avi@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.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 11:53:54 +0200 [thread overview]
Message-ID: <20100602095354.GE964@8bytes.org> (raw)
In-Reply-To: <201006012159.41344.pugs@lyon-about.com>
On Tue, Jun 01, 2010 at 09:59:40PM -0700, Tom Lyon wrote:
> This is just what I was thinking. But rather than a get/set, just use two fds.
>
> ioctl(vfio_fd1, VFIO_SET_DOMAIN, vfio_fd2);
>
> This may fail if there are really 2 different IOMMUs, so user code must be
> prepared for failure, In addition, this is strictlyupwards compatible with
> what is there now, so maybe we can add it later.
How can this fail with multiple IOMMUs? This should be handled
transparently by the IOMMU driver.
Joerg
next prev parent reply other threads:[~2010-06-02 9:53 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
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 [this message]
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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