wireguard-linux/arch/x86/include/asm/efi.h, branch jd/orphan-parallel

efi/x86: Move 32-bit code into efi_32.c

2020-08-20T09:18:36Z

Now that the old memmap code has been removed, some code that was left behind in arch/x86/platform/efi/efi.c is only used for 32-bit builds, which means it can live in efi_32.c as well. So move it over. Signed-off-by: Ard Biesheuvel

x86/efi: Remove unused EFI_UV1_MEMMAP code

2020-07-17T14:47:48Z

With UV1 support removed, EFI_UV1_MEMMAP is no longer used. Signed-off-by: Steve Wahl Signed-off-by: Thomas Gleixner Reviewed-by: Ard Biesheuvel Link: https://lkml.kernel.org/r/20200713212956.019149227@hpe.com

mm: reorder includes after introduction of linux/pgtable.h

2020-06-09T16:39:13Z

The replacement of with made the include of the latter in the middle of asm includes. Fix this up with the aid of the below script and manual adjustments here and there. import sys import re if len(sys.argv) is not 3: print "USAGE: %s

" % (sys.argv[0]) sys.exit(1) hdr_to_move="#include " % sys.argv[2] moved = False in_hdrs = False with open(sys.argv[1], "r") as f: lines = f.readlines() for _line in lines: line = _line.rstrip(' ') if line == hdr_to_move: continue if line.startswith("#include Signed-off-by: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Brian Cain Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Guan Xuetao Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: Ingo Molnar Cc: Ley Foon Tan Cc: Mark Salter Cc: Matthew Wilcox Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Nick Hu Cc: Paul Walmsley Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Tony Luck Cc: Vincent Chen Cc: Vineet Gupta Cc: Will Deacon Cc: Yoshinori Sato Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org Signed-off-by: Linus Torvalds

mm: introduce include/linux/pgtable.h

2020-06-09T16:39:13Z

The include/linux/pgtable.h is going to be the home of generic page table manipulation functions. Start with moving asm-generic/pgtable.h to include/linux/pgtable.h and make the latter include asm/pgtable.h. Signed-off-by: Mike Rapoport Signed-off-by: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Brian Cain Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Guan Xuetao Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: Ingo Molnar Cc: Ley Foon Tan Cc: Mark Salter Cc: Matthew Wilcox Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Nick Hu Cc: Paul Walmsley Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Tony Luck Cc: Vincent Chen Cc: Vineet Gupta Cc: Will Deacon Cc: Yoshinori Sato Link: http://lkml.kernel.org/r/20200514170327.31389-3-rppt@kernel.org Signed-off-by: Linus Torvalds

efi/libstub: Add definitions for console input and events

2020-05-20T17:09:20Z

Add the required typedefs etc for using con_in's simple text input protocol, and for using the boottime event services. Also add the prototype for the "stall" boot service. Signed-off-by: Arvind Sankar Link: https://lore.kernel.org/r/20200518190716.751506-19-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel

efi/libstub: Fix mixed mode boot issue after macro refactor

2020-05-05T07:25:39Z

Commit 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") refactored the macros that are used to provide wrappers for mixed-mode calls on x86, allowing us to boot a 64-bit kernel on 32-bit firmware. Unfortunately, this broke mixed mode boot due to the fact that efi_is_native() is not a macro on x86. All of these macros should go together, so rather than testing each one to see if it is defined, condition the generic macro definitions on a new ARCH_HAS_EFISTUB_WRAPPERS, and remove the wrapper definitions on x86 as well if CONFIG_EFI_MIXED is not enabled. Fixes: 22090f84bc3f ("efi/libstub: unify EFI call wrappers for non-x86") Reported-by: Guenter Roeck Signed-off-by: Arvind Sankar Link: https://lore.kernel.org/r/20200504150248.62482-1-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel

efi/libstub/x86: Avoid getter function for efi_is64

2020-04-24T12:52:16Z

We no longer need to take special care when using global variables in the EFI stub, so switch to a simple symbol reference for efi_is64. Signed-off-by: Ard Biesheuvel

efi/libstub: Drop __pure getter for efi_system_table

2020-04-24T12:52:16Z

The practice of using __pure getter functions to access global variables in the EFI stub dates back to the time when we had to carefully prevent GOT entries from being emitted, because we could not rely on the toolchain to do this for us. Today, we use the hidden visibility pragma for all EFI stub source files, which now all live in the same subdirectory, and we apply a sanity check on the objects, so we can get rid of these getter functions and simply refer to global data objects directly. Start with efi_system_table(), and convert it into a global variable. While at it, make it a pointer-to-const, because we can. Signed-off-by: Ard Biesheuvel

efi/gop: Add prototypes for query_mode and set_mode

2020-04-23T18:15:06Z

Add prototypes and argmap for the Graphics Output Protocol's QueryMode and SetMode functions. Signed-off-by: Arvind Sankar Link: https://lore.kernel.org/r/20200320020028.1936003-11-nivedita@alum.mit.edu Signed-off-by: Ard Biesheuvel

efi/x86: Revert struct layout change to fix kexec boot regression

2020-04-14T06:32:17Z

Commit 0a67361dcdaa29 ("efi/x86: Remove runtime table address from kexec EFI setup data") removed the code that retrieves the non-remapped UEFI runtime services pointer from the data structure provided by kexec, as it was never really needed on the kexec boot path: mapping the runtime services table at its non-remapped address is only needed when calling SetVirtualAddressMap(), which never happens during a kexec boot in the first place. However, dropping the 'runtime' member from struct efi_setup_data was a mistake. That struct is shared ABI between the kernel and the kexec tooling for x86, and so we cannot simply change its layout. So let's put back the removed field, but call it 'unused' to reflect the fact that we never look at its contents. While at it, add a comment to remind our future selves that the layout is external ABI. Fixes: 0a67361dcdaa29 ("efi/x86: Remove runtime table address from kexec EFI setup data") Reported-by: Theodore Ts'o Tested-by: Theodore Ts'o Reviewed-by: Dave Young Signed-off-by: Ard Biesheuvel Signed-off-by: Ingo Molnar