From: Joerg Roedel <joro@8bytes.org>
To: Tom Lyon <pugs@lyon-about.com>
Cc: Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
"Hans J. Koch" <hjk@linutronix.de>,
gregkh@suse.de
Subject: Re: [PATCH 0/1] uio_pci_generic: extensions to allow access for non-privileged processes
Date: Thu, 1 Apr 2010 22:21:00 +0200 [thread overview]
Message-ID: <20100401202100.GL24846@8bytes.org> (raw)
In-Reply-To: <201004011224.45336.pugs@lyon-about.com>
On Thu, Apr 01, 2010 at 12:24:45PM -0700, Tom Lyon wrote:
> For my purposes, collapsing all the MSI-Xs into one MSI-look-alike is fine,
> because I'd be using MSI anyways if I could. The weird Intel 82599 VF only
> supports MSI-X.
For KVM this is not fine. The device should look in the guest as it
looks in the host. Some devices might only support MSI-X and thus the
drivers for it only search for MSI-X and get confused when they only
find MSI.
> So one big question is - do we expand the whole UIO framework for KVM
> requirements, or do we split off either KVM or non-VM into a separate driver?
> Hans or Greg - care to opine?
We should definitly work towards a single implementation. The KVM device
passthrough requirements are not very different from that of userspace
device access.
Joerg
next prev parent reply other threads:[~2010-04-01 20:21 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-01 0:08 [PATCH 0/1] uio_pci_generic: extensions to allow access for non-privileged processes Tom Lyon
2010-04-01 0:12 ` [PATCH 1/1] " Tom Lyon
2010-04-09 9:08 ` Joerg Roedel
2010-04-09 16:27 ` Tom Lyon
2010-04-01 9:09 ` [PATCH 0/1] " Avi Kivity
2010-04-01 15:39 ` Tom Lyon
2010-04-01 15:54 ` Avi Kivity
2010-04-01 16:06 ` Tom Lyon
2010-04-01 16:10 ` Avi Kivity
2010-04-01 19:24 ` Tom Lyon
2010-04-01 20:21 ` Joerg Roedel [this message]
2010-04-02 6:43 ` Avi Kivity
2010-04-02 17:05 ` Greg KH
2010-04-09 9:58 ` Avi Kivity
2010-04-09 16:34 ` Tom Lyon
2010-04-09 16:48 ` [PATCH 0/1] uio_pci_generic: extensions to allow access for?non-privileged processes Joerg Roedel
2010-04-09 17:43 ` [PATCH 0/1] uio_pci_generic: extensions to allow access for non-privileged processes Avi Kivity
2010-04-09 20:09 ` [PATCH 0/1] uio_pci_generic: extensions to allow access for?non-privileged processes Chris Wright
2010-04-09 20:05 ` [PATCH 0/1] uio_pci_generic: extensions to allow access for non-privileged processes Chris Wright
2010-04-01 21:27 ` Tom Lyon
2010-04-02 6:44 ` Avi Kivity
2010-04-01 12:52 ` Joerg Roedel
2010-04-01 15:40 ` Tom Lyon
2010-04-01 16:07 ` Joerg Roedel
2010-04-01 19:18 ` Tom Lyon
2010-04-01 20:09 ` Joerg Roedel
2010-04-01 14:25 ` Michael S. Tsirkin
2010-04-01 16:02 ` Tom Lyon
2010-04-01 16:57 ` Joerg Roedel
2010-04-01 19:08 ` Hans J. Koch
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