[SeaBIOS] [PATCH 1/2] vgabios: fix graphics operation with Bochs VGA in non-DISPI modes

[Kevin O'Connor]

On Thu, Jan 01, 2015 at 09:27:46PM +0100, Paolo Bonzini wrote:
> For legacy VGA modes that do not set the VBE_DISPI_ENABLED bit,
> bochsvga_get_linelength returns 0.  Thus all characters are squashed
> into the first scanline.  Fix this by falling back to stdvga for
> the legacy modes.
[...]
> +static u8
> +bochsvga_dispi_enabled(void)
> +{
> +    if (!GET_GLOBAL(dispi_found))
> +        return 0;
> +    u16 en = dispi_read(VBE_DISPI_INDEX_ENABLE);
> +    if (!(en & VBE_DISPI_ENABLED))
> +        return 0;
> +    return 1;
> +}

Thanks.  Can the existing is_bochsvga_mode() function be used instead?

-Kevin