kern/59410: New driver: bochsfb (patch)

[jiaxun.yang%flygoat.com@localhost]

>Number:         59410
>Category:       kern
>Synopsis:       New driver: bochsfb (patch)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Fri May 09 13:25:00 +0000 2025
>Originator:     Jiaxun Yang
>Release:        current
>Organization:
>Environment:
current
>Description:
Add a new driver bochsfb, which is a framebuffer device emulated by QEMU, and bochs.

Tested with QEMU devices:
-vga std
-vga virtio
-device VGA
-device bochs-display
-device secondary-vga
-device virtio-vga

This driver is useful when kern is booted without firmware runtime video support. (i.e. fdt booting for riscv/arm, PMON/YAMON for MIPS). For x86, genfb is more sutiable, thus only enabled for arm generic kernel at the moment.

Patch at: https://github.com/NetBSD/src/pull/48



>How-To-Repeat:
Boot
>Fix:
Patch: https://github.com/NetBSD/src/pull/48