RE: [PATCH 1/2] hyperv-fb: add pci stub
From: Haiyang Zhang
Date: Wed Oct 02 2013 - 16:59:44 EST
> -----Original Message-----
> From: linux-fbdev-owner@xxxxxxxxxxxxxxx [mailto:linux-fbdev-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Gerd Hoffmann
> Sent: Wednesday, October 2, 2013 7:55 AM
> Cc: Gerd Hoffmann; KY Srinivasan; Haiyang Zhang; Jean-Christophe Plagniol-
> Villard; Tomi Valkeinen; open list:Hyper-V CORE AND...; open
> list:FRAMEBUFFER LAYER; open list
> Subject: [PATCH 1/2] hyperv-fb: add pci stub
>
> This patch adds a pci stub driver to hyper-fb. The hyperv framebuffer driver
> will bind to the pci device then, so linux kernel and userspace know there is a
> proper kernel driver for the device active. lspci shows this for example:
>
> [root@dhcp231 ~]# lspci -vs8
> 00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual
> VGA (prog-if 00 [VGA controller])
> Flags: bus master, fast devsel, latency 0, IRQ 11
> Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
> Expansion ROM at <unassigned> [disabled]
> Kernel driver in use: hyperv_fb
>
> Another effect is that the xorg vesa driver will not attach to the device and
> thus the Xorg server will automatically use the fbdev driver instead.
>
> Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Acked-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Thank you for fixing this!
- Haiyang
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