Date: Fri, 19 Jul 2019 09:43:14 -0500 From: Matthew Grooms <mgrooms@shrew.net> To: freebsd-virtualization@freebsd.org Subject: Re: New video BIOS for bhyve Message-ID: <d7dd8790-6e3b-467a-626b-031adc3ad435@shrew.net> In-Reply-To: <ea5e9e82398c7cece09ebdd6f3551d31@www.gulbra.net> References: <ea5e9e82398c7cece09ebdd6f3551d31@www.gulbra.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On 7/19/2019 5:02 AM, Henrik Gulbrandsen wrote: > In the last few months, I have been extending the video support in bhyve > to allow booting from live ISO images, which sometimes lack UEFI loaders. Hi Henrick, Wow. This looks impressive. Thanks for taking it on :) > There was already a video BIOS with dormant support for VGA, but I could > not use that, because the X11 int10 module runs a real-mode x86 emulator > that aborts when it tries to enter the C code running in protected mode. I wonder if this could be related to your CPU not supporting unrestricted guest mode? I know it's required for some bhyve functionality. > > Instead, I added support for PCI Expansion ROMs to bhyve and wrote a new > SVGA video BIOS from scratch in 8086 assembly code. The current features > include VGA modes 3 and 12h, 24-bit and 32-bit VESA modes from 640x480 to > 1920x1200, and enough BIOS functions to boot a typical Linux desktop. > > At this point, I think it's good enough for a preliminary release, so if > you are interested, you will find all patch files at the following URL: > > https://www.gulbra.net/freebsd-bhyve/ > > My apologies for the 15-year-old web layout, which will probably break > horribly on modern smartphones. Also, I hope I have not duplicated the > work of someone else. I didn't want to announce this before it worked. > Are you maintaining your changes in a public repo somewhere? If so, it would be great if you could share the location. Thanks, -Matthew
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?d7dd8790-6e3b-467a-626b-031adc3ad435>