!3475 kaslr: ppc64: Introduce KASLR for PPC64

Merge Pull Request from: @ci-robot 
 
PR sync from: GUO Zihua <guozihua@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/XBDTRKAJR4UKNYN7ABWJOI5YLPUM6DSH/ 
This patchset introduces KASLR for PowerPC64 chips.

v3:
  Fixed one more commit message.
v2:
  Replaced bugzilla in commit messages.

GUO Zihua (2):
  powerpc/fsl_booke/kaslr: Provide correct r5 value for relocated kernel
  powerpc/fsl_booke/kaslr: Fix preserved memory size for int-vectors
    issue

Jason Yan (6):
  powerpc/fsl_booke/kaslr: refactor kaslr_legal_offset() and
    kaslr_early_init()
  powerpc/fsl_booke/64: introduce reloc_kernel_entry() helper
  powerpc/fsl_booke/64: implement KASLR for fsl_booke64
  powerpc/fsl_booke/64: do not clear the BSS for the second pass
  powerpc/fsl_booke/64: clear the original kernel if randomized
  powerpc/fsl_booke/kaslr: rename kaslr-booke32.rst to kaslr-booke.rst
    and add 64bit part

 rename Documentation/powerpc/{kaslr-booke32.rst => kaslr-booke.rst} (59%)

-- 
2.34.1
 
https://gitee.com/openeuler/kernel/issues/I8OHAZ 
 
Link:https://gitee.com/openeuler/kernel/pulls/3475

 

Reviewed-by: Zhang Jianhua <chris.zjh@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>