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Subject[PATCH v2 0/3] RISC-V: Fix a few kexec_file_load(2) failures
Date
From: Petr Tesarik <petr.tesarik.ext@huawei.com>

The kexec_file_load(2) syscall does not work at least in some kernel
builds. For details see the relevant section in this blog post:

https://sigillatum.tesarici.cz/2023-07-21-state-of-riscv64-kdump.html

This patch series handles an additional relocation types, removes the need
to implement a Global Offset Table (GOT) for the purgatory and fixes the
placement of initrd.

Changelog
=========

Changes from v1:
- Replace memcmp() with a for loop.
- Drop handling of 16-bit add/subtract relocations. They were used only
by alternatives in strcmp(), which was referenced only by string.o.
- Add the initrd placement fix.

Petr Tesarik (1):
riscv/purgatory: do not link with string.o and its dependencies

Torsten Duwe (2):
riscv/kexec: handle R_RISCV_CALL_PLT relocation type
riscv/kexec: load initrd high in available memory

arch/riscv/kernel/elf_kexec.c | 3 ++-
arch/riscv/purgatory/Makefile | 26 +-------------------------
arch/riscv/purgatory/purgatory.c | 6 ++++--
3 files changed, 7 insertions(+), 28 deletions(-)

--
2.25.1

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