From: Gerd Hoffmann <kraxel@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [RfC PATCH 03/15] virtio-pci: make pci bars configurable
Date: Mon, 02 Mar 2015 14:10:46 +0100 [thread overview]
Message-ID: <1425301846.8058.17.camel@nilsson.home.kraxel.org> (raw)
In-Reply-To: <20150302123030.GA29257@redhat.com>
Hi,
> > Use case: For VirtIOPCIProxy subclasses which need additional pci bars,
> > such as virtio-vga. With the new fields they can make sure the regions
> > do not conflict.
> >
> > Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
>
> Hmm, I'd rather add an API to register a free BAR.
> What's wrong with that?
I want a fixed bar (for the legacy vga framebuffer), because that makes
things easier for vgabios etc. Currently virtio-vga uses bar #2, and
I'd much prefer to not change that as support for this is in seabios
already.
I don't mind much how that is actually implemented though. Reserving
bar #2 somehow, then have virtio_pci_device_plugged check this and place
the bars automatically in a non-conflicting way is fine with me too.
cheers,
Gerd
next prev parent reply other threads:[~2015-03-02 13:11 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-23 10:23 [Qemu-devel] [RfC PATCH 00/15] virtio-gpu: Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 01/15] virtio-pci: add flags to enable/disable legacy/modern Gerd Hoffmann
2015-02-26 16:41 ` Max Reitz
2015-02-27 11:15 ` Gerd Hoffmann
2015-02-27 14:20 ` Max Reitz
2015-03-02 12:34 ` Michael S. Tsirkin
2015-03-02 13:25 ` Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 02/15] virtio-pci: make QEMU_VIRTIO_PCI_QUEUE_MEM_MULT smaller Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 03/15] virtio-pci: make pci bars configurable Gerd Hoffmann
2015-03-02 12:30 ` Michael S. Tsirkin
2015-03-02 13:10 ` Gerd Hoffmann [this message]
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 04/15] virtio-pci: make modern bar 64bit prefetchable Gerd Hoffmann
2015-03-02 12:33 ` Michael S. Tsirkin
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 05/15] virtio-gpu/2d: add hardware spec include file Gerd Hoffmann
2015-02-25 20:04 ` Max Reitz
2015-02-27 9:37 ` Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 06/15] virtio-gpu/2d: add virtio gpu core code Gerd Hoffmann
2015-02-26 16:08 ` Max Reitz
2015-02-27 11:10 ` Gerd Hoffmann
2015-02-27 14:20 ` Max Reitz
2015-02-27 14:31 ` Gerd Hoffmann
2015-02-27 14:33 ` Max Reitz
2015-03-01 22:03 ` Dave Airlie
2015-03-02 12:57 ` Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 07/15] virtio-gpu-pci: add virtio pci support Gerd Hoffmann
2015-02-26 16:25 ` Max Reitz
2015-02-27 11:13 ` Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 08/15] virtio-gpu-pci: virtio-1.0 adaptions [fixup] Gerd Hoffmann
2015-02-26 16:46 ` Max Reitz
2015-02-27 11:18 ` Gerd Hoffmann
2015-02-27 14:30 ` Max Reitz
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 09/15] virtio-vga: add virtio gpu device with vga compatibility Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 10/15] virtio-vga: virtio-1.0 adaptions [fixup] Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 11/15] virtio-vga: add '-vga virtio' support Gerd Hoffmann
2015-02-24 16:26 ` Marc-André Lureau
2015-02-27 9:27 ` Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 12/15] virtio-vga: add vgabios configuration Gerd Hoffmann
2015-02-26 18:13 ` Max Reitz
2015-02-27 11:25 ` Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 13/15] virtio-vga: add vgabios binary Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 14/15] virtio-gpu: add to display-vga test Gerd Hoffmann
2015-02-23 10:23 ` [Qemu-devel] [RfC PATCH 15/15] [hack] virtio-gpu: maskerade as -device VGA Gerd Hoffmann
2015-02-26 18:40 ` [Qemu-devel] [RfC PATCH 00/15] virtio-gpu: Max Reitz
2015-02-27 11:30 ` Gerd Hoffmann
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