RE: [PATCH v4] video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host

From: Michael Kelley
Date: Thu Sep 05 2019 - 10:05:55 EST


From: Wei Hu <weh@xxxxxxxxxxxxx> Sent: Thursday, September 5, 2019 2:12 AM
>
> Beginning from Windows 10 RS5+, VM screen resolution is obtained from host.
> The "video=hyperv_fb" boot time option is not needed, but still can be
> used to overwrite what the host specifies. The VM resolution on the host
> could be set by executing the powershell "set-vmvideo" command.
>
> Signed-off-by: Iouri Tarassov <iourit@xxxxxxxxxxxxx>
> Signed-off-by: Wei Hu <weh@xxxxxxxxxxxxx>
> ---
> v2:
> - Implemented fallback when version negotiation failed.
> - Defined full size for supported_resolution array.
>
> v3:
> - Corrected the synthvid major and minor version comparison problem.
>
> v4:
> - Changed function name to synthvid_ver_ge().
>
> drivers/video/fbdev/hyperv_fb.c | 159 +++++++++++++++++++++++++++++---
> 1 file changed, 147 insertions(+), 12 deletions(-)
>

Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>