[PATCH 00/18] video: bochs: Remove the x86 limitation

Bin Meng bmeng.cn at gmail.com
Tue Jul 25 06:10:31 CEST 2023

Hi Rick,

On Sun, Jul 23, 2023 at 12:40 PM Bin Meng <bmeng at tinylab.org> wrote:
> The Bochs VGA card emulated by QEMU does not enforce any architecture.
> It was first introduced on x86 and indeed the x86 IO instruction is
> used to access the legacy VGA IO ports, but that does not mean it has
> to be done like this.
> The first half of this series enhances the bochs video driver to
> remove the x86 limitation.
> The second half of this series enables bochs video as the output
> console for QEMU RISC-V, to prove that the bochs video driver can
> indeed work on a non-x86 architecture. To make it actually useful,
> enable a usb keyboard as well, otherwise we can't just type anything :-)
> This series is available at u-boot-x86/bochs for testing.
> Bin Meng (17):
>   dm: video: Cosmetic style fix
>   video: bochs: Drop inclusion of <asm/mtrr.h>
>   video: bochs: Drop the useless argument of bochs_vga_write()
>   video: bochs: Avoid using IO instructions to access VGA IO port
>   video: bochs: Remove the x86 dependency
>   video: kconfig: Fix wrong text for the PCI default FB size
>   video: kconfig: Drop the superfluous dependency
>   video: kconfig: Set default FB size for Bochs
>   video: bochs: Set the frame buffer size per configuration
>   riscv: qemu: Enable Bochs video support
>   console: kconfig: Drop the redundant VIDEO dependency
>   console: Make stdio_print_current_devices() static
>   console: Refactor stdio_print_current_devices() a little bit
>   console: Print out complete stdio device list
>   riscv: qemu: Enable PRE_CONSOLE_BUFFER
>   riscv: qemu: Remove out-of-date "riscv,kernel-start" handling
>   riscv: qemu: Enable usb keyboard as an input device

Would you please review patch 10, 15, 17, 18? Thanks!


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