diff options
| author | Matt Fleming <matt.fleming@intel.com> | 2013-10-04 12:36:56 +0400 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2013-10-28 22:09:58 +0400 |
| commit | 72548e836b0c4abbb652e791dee9c91203a9a4c6 (patch) | |
| tree | 2eead15738f173ed08ecbedc88adbb0bf2937022 /arch/x86/platform/efi/Makefile | |
| parent | c158c3bf59951bbb44bd7ccca9e6665dfd1617c5 (diff) | |
| download | linux-72548e836b0c4abbb652e791dee9c91203a9a4c6.tar.xz | |
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 'arch/x86/platform/efi/Makefile')
| -rw-r--r-- | arch/x86/platform/efi/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile index 6db1cc4c7534..b7b0b35c1981 100644 --- a/arch/x86/platform/efi/Makefile +++ b/arch/x86/platform/efi/Makefile @@ -1,2 +1,3 @@ obj-$(CONFIG_EFI) += efi.o efi_$(BITS).o efi_stub_$(BITS).o obj-$(CONFIG_ACPI_BGRT) += efi-bgrt.o +obj-$(CONFIG_EARLY_PRINTK_EFI) += early_printk.o |