diff options
| author | Matt Fleming <matt.fleming@intel.com> | 2013-10-04 04:36:56 -0400 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2013-10-28 14:09:58 -0400 |
| commit | 72548e836b0c4abbb652e791dee9c91203a9a4c6 (patch) | |
| tree | 2eead15738f173ed08ecbedc88adbb0bf2937022 /lib/dump_stack.c | |
| parent | c158c3bf59951bbb44bd7ccca9e6665dfd1617c5 (diff) | |
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>
Diffstat (limited to 'lib/dump_stack.c')
0 files changed, 0 insertions, 0 deletions