linux-kernel - [PATCH v2 0/5] MIPS: relocate: Add automatic relocation to CONFIG

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Date:   Mon, 12 Apr 2021 20:28:09 +0800
From:   Jinyang He <hejinyang@...ngson.cn>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Paul Burton <paulburton@...nel.org>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/5] MIPS: relocate: Add automatic relocation to CONFIG_RELOCATABLE

1, To get the address the kernel is linked to, use PC-region(static) +
   offset(dynamic) way. See detail at [PATCH v2 3/5]
2, To deal with smp cpu in kernel entry, e.g. cavium-octeon platform,
   move smp cpu handle later than jump to the address kernel linked to.
   See detail at [PATCH v2 4/5]

Jinyang He (5):
  MIPS: relocate: Only compile relocs when CONFIG_RELOCATABLE is enabled
  MIPS: relocate: Use CONFIG_RANDOMIZE_BASE to enable kaslr
  MIPS: Jump to kernel linked address by PC relative way
  MIPS: cavium-octeon: Execute the smp handle after jumping to kernel
    linked address
  MIPS: relocate: Add support to auto relocate kernel

 arch/mips/Makefile                                 |   2 +
 arch/mips/cavium-octeon/smp.c                      |   9 +-
 arch/mips/generic/init.c                           |   4 +-
 arch/mips/include/asm/bootinfo.h                   |   4 +-
 .../asm/mach-cavium-octeon/kernel-entry-init.h     |  24 ++-
 arch/mips/kernel/Makefile                          |   2 +-
 arch/mips/kernel/head.S                            | 185 ++++++++++++++++++++-
 arch/mips/kernel/{relocate.c => kaslr.c}           |  15 --
 8 files changed, 214 insertions(+), 31 deletions(-)
 rename arch/mips/kernel/{relocate.c => kaslr.c} (97%)

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2.1.0