x86, efi: Abstract x86 efi_early calls
authorMatt Fleming <matt.fleming@intel.com>
Sat, 22 Mar 2014 10:09:01 +0000 (10:09 +0000)
committerH. Peter Anvin <hpa@linux.intel.com>
Wed, 26 Mar 2014 18:30:03 +0000 (11:30 -0700)
commit204b0a1a4b92612c957a042df1a3be0e9cc79391
tree71d15a5f460010bd5685272d3738fc4558046a6f
parent9a11040ff962304c1838aa9a9f33be78784eae47
x86, efi: Abstract x86 efi_early calls

The ARM EFI boot stub doesn't need to care about the efi_early
infrastructure that x86 requires in order to do mixed mode thunking. So
wrap everything up in an efi_call_early() macro.

This allows x86 to do the necessary indirection jumps to call whatever
firmware interface is necessary (native or mixed mode), but also allows
the ARM folks to mask the fact that they don't support relocation in the
boot stub and need to pass 'sys_table_arg' to every function.

[ hpa: there are no object code changes from this patch ]

Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/20140326091011.GB2958@console-pimps.org
Cc: Roy Franz <roy.franz@linaro.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/boot/compressed/eboot.c
drivers/firmware/efi/efi-stub-helper.c