Matt Fleming 72548e836b x86/efi: Add EFI framebuffer earlyprintk support
It's incredibly difficult to diagnose early EFI boot issues without
special hardware because earlyprintk=vga doesn't work on EFI systems.

Add support for writing to the EFI framebuffer, via earlyprintk=efi,
which will actually give users a chance of providing debug output.

Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Jones <pjones@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-10-28 18:09:58 +00:00
..
2013-08-30 16:18:59 -07:00
2013-08-14 11:46:30 +02:00
2013-08-13 17:57:48 -07:00
2013-08-16 21:16:37 -07:00
2013-08-13 17:57:48 -07:00