Hey guys,
This patchset creates a general purpose version of the efi_call_virt
macro that does not assume that the function pointer being passed in is
inside of efi.systab->runtime. It also fixes up uv_bios_call to use the
new functionality, and does a bit of cleanup in the efi_thunk macro.
Quick breakdown of the patches:
Patch 1) Move necessary macros to locations where we can access them.
Remove hard-coded efi.systab reference from efi_call_virt.
Rename/create new macros as needed.
Patch 2) Simple change to allow UV code to utilize the new
functionality. Included a detailed explanation of how we got
here.
Patch 3) Replace a few bits of the efi_thunk macro with the
arch_efi_call_setup/teardown macros.
The first two have been tested on simulators and hardware, but the third
has only been compile-tested. I don't have any hardware to test that
on.
Updates for v2:
- Fix up arm and arm64 versions of arch_efi_call_virt. I missed these
on my first pass
- Add some more detail to the commit message for the uv_bios_call fix.
- Change the third patch to use the arch_efi_call_setup/teardown macros
inside of the efi_thunk macro, instead of replacing efi_thunk entirely
for the CONFIG_EFI_MIXED case.
Cc: Matt Fleming <[email protected]>
Cc: Russ Anderson <[email protected]>
Cc: Dimitri Sivanich <[email protected]>
Cc: Russell King <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Roy Franz <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Alex Thorlton (3):
Convert efi_call_virt to efi_call_virt_pointer
Update uv_bios_call to use efi_call_virt_pointer
Update efi_thunk to use the the arch_efi_call_virt* macros
arch/arm/include/asm/efi.h | 4 +--
arch/arm64/include/asm/efi.h | 4 +--
arch/x86/include/asm/efi.h | 9 +++---
arch/x86/platform/efi/efi_64.c | 11 ++-----
arch/x86/platform/uv/bios_uv.c | 3 +-
drivers/firmware/efi/runtime-wrappers.c | 53 +++++++--------------------------
include/linux/efi.h | 51 +++++++++++++++++++++++++++++++
7 files changed, 73 insertions(+), 62 deletions(-)
--
1.8.5.6
