lkml.org 
[lkml]   [2020]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v3 0/3] vmalloc kernel mapping and relocatable kernel
Date
This patchset originally implemented relocatable kernel support but now
also moves the kernel mapping into the vmalloc zone.

The first patch explains why we need to move the kernel into vmalloc
zone (instead of memcpying it around). That patch should ease KASLR
implementation a lot.

The second patch allows to build relocatable kernels but is not selected
by default.

The third patch takes advantage of an already existing powerpc script
that checks relocations at compile-time, and uses it for riscv.

Alexandre Ghiti (3):
riscv: Move kernel mapping to vmalloc zone
riscv: Introduce CONFIG_RELOCATABLE
arch, scripts: Add script to check relocations at compile time

arch/powerpc/tools/relocs_check.sh | 18 +----
arch/riscv/Kconfig | 12 +++
arch/riscv/Makefile | 5 +-
arch/riscv/Makefile.postlink | 36 +++++++++
arch/riscv/boot/loader.lds.S | 3 +-
arch/riscv/include/asm/page.h | 10 ++-
arch/riscv/include/asm/pgtable.h | 37 ++++++---
arch/riscv/kernel/head.S | 3 +-
arch/riscv/kernel/module.c | 4 +-
arch/riscv/kernel/vmlinux.lds.S | 9 ++-
arch/riscv/mm/Makefile | 4 +
arch/riscv/mm/init.c | 121 +++++++++++++++++++++++++----
arch/riscv/mm/physaddr.c | 2 +-
arch/riscv/tools/relocs_check.sh | 26 +++++++
scripts/relocs_check.sh | 20 +++++
15 files changed, 258 insertions(+), 52 deletions(-)
create mode 100644 arch/riscv/Makefile.postlink
create mode 100755 arch/riscv/tools/relocs_check.sh
create mode 100755 scripts/relocs_check.sh

--
2.20.1

\
 
 \ /
  Last update: 2020-05-24 10:53    [W:0.143 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site