Re: [PATCH] x86: Switch to vga console only if framebuffer detailsare missing

From: Matt Fleming
Date: Wed Oct 10 2012 - 09:43:10 EST


On Mon, 2012-09-17 at 11:29 +0100, Matt Fleming wrote:
> From: Matt Fleming <matt.fleming@xxxxxxxxx>
>
> The efi_enabled variable has come to mean "Do we have EFI runtime
> services available?". However, lack of EFI runtime services does not
> mean that we should switch to using the VGA console. Provided that the
> boot loader passed the dimensions of the EFI framebuffer there is no
> reason we can't use efifb.
>
> There's also no reason to check the memory type of 0xa0000 - whether
> or not that memory region is EFI_CONVENTIONAL_MEMORY is immaterial -
> the EFI framebuffer device will still work, and checking the EFI
> memory type of a memory region on a non-EFI machine is illogical.
>
> Cc: H. Peter Anvin <hpa@xxxxxxxxx>
> Cc: Matthew Garrett <mjg@xxxxxxxxxx>
> Cc: Olof Johansson <olof@xxxxxxxxx>
> Cc: Peter Jones <pjones@xxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
> ---
> arch/x86/kernel/setup.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)

Ping? Anybody got an opinion on this one?

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