From: Anthony Liguori <aliguori@us.ibm.com>
To: Alexander Graf <agraf@suse.de>
Cc: Peter Maydell <peter.maydell@linaro.org>,
patches@linaro.org, qemu-devel@nongnu.org,
David Gibson <david@gibson.dropbear.id.au>,
kvmarm@lists.cs.columbia.edu,
KONRAD Frederic <fred.konrad@greensocs.com>
Subject: Re: [Qemu-devel] [PATCH 0/8] Add virtio-mmio and use it in vexpress
Date: Mon, 08 Jul 2013 16:06:57 -0500 [thread overview]
Message-ID: <87mwpwpxqm.fsf@codemonkey.ws> (raw)
In-Reply-To: <39D95139-6E9C-4FD8-A007-C08444C1AA67@suse.de>
Alexander Graf <agraf@suse.de> writes:
> On 08.07.2013, at 22:08, Anthony Liguori wrote:
>
>> I think we're trying to fit a square peg into a round hole.
>>
>> virtio-mmio is a virtio transport where each device has a dedicated set
>> of system resources.
>>
>> Alex, it sounds like you want virtio-mmio-bus which would be a single
>> set of system resources that implemented a virtio bus on top of it.
>
> Well, what I really want is a sysbus that behaves like PCI from a
> usability point of view ;).
Which means you need to have (1) a discovery mechanism with a stable
addressing mechanism (2) a way to communicate this to the guest from the
host.
That's all that PCI is. A host controller is a "sysbus" device that
uses a standardized discovery and addressing mechanism.
Regards,
Anthony Liguori
>
>
> Alex
next prev parent reply other threads:[~2013-07-08 21:07 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-27 13:04 [Qemu-devel] [PATCH 0/8] Add virtio-mmio and use it in vexpress Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 1/8] device_tree: Add qemu_devtree_setprop_sized_cells() utility functions Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 2/8] arm/boot: Use qemu_devtree_setprop_sized_cells() Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 3/8] virtio: Add support for guest setting of queue size Peter Maydell
2013-07-08 19:39 ` Anthony Liguori
2013-07-09 8:27 ` Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 4/8] virtio: Support transports which can specify the vring alignment Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 5/8] virtio: Implement MMIO based virtio transport Peter Maydell
2013-07-08 19:52 ` Anthony Liguori
2013-06-27 13:04 ` [Qemu-devel] [PATCH 6/8] arm/boot: Allow boards to modify the FDT blob Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 7/8] vexpress: Make VEDBoardInfo extend arm_boot_info Peter Maydell
2013-06-27 13:04 ` [Qemu-devel] [PATCH 8/8] vexpress: Add virtio-mmio transports Peter Maydell
2013-07-08 12:57 ` [Qemu-devel] [PATCH 0/8] Add virtio-mmio and use it in vexpress Alexander Graf
2013-07-08 12:59 ` Alexander Graf
2013-07-08 13:08 ` Peter Maydell
2013-07-08 13:16 ` Alexander Graf
2013-07-08 13:23 ` Peter Maydell
2013-07-08 13:45 ` Alexander Graf
2013-07-08 14:06 ` Peter Maydell
2013-07-08 20:08 ` Anthony Liguori
2013-07-08 20:47 ` Alexander Graf
2013-07-08 21:06 ` Anthony Liguori [this message]
2013-07-09 9:28 ` Andreas Färber
2013-07-10 10:56 ` Alexander Graf
2013-07-17 9:30 ` Christoffer Dall
2013-07-17 9:34 ` Peter Maydell
2013-07-17 12:41 ` Anthony Liguori
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