[PATCH v1 0/3] RISC-V: Fix a few kexec_file_load(2) failures

From: Petr Tesarik <petrtesarik@huaweicloud.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Conor Dooley <conor.dooley@microchip.com>,
	Li Huafei <lihuafei1@huawei.com>,
	Liao Chang <liaochang1@huawei.com>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Alyssa Ross <hi@alyssa.is>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Ricardo Ribalda <ribalda@chromium.org>,
	Kees Cook <keescook@chromium.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Li Zhengyu <lizhengyu3@huawei.com>,
	linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE),
	linux-kernel@vger.kernel.org (open list)
Cc: Roberto Sassu <roberto.sassu@huaweicloud.com>, petr@tesarici.cz
Subject: [PATCH v1 0/3] RISC-V: Fix a few kexec_file_load(2) failures
Date: Tue, 25 Jul 2023 10:44:24 +0200	[thread overview]
Message-ID: <cover.1690274483.git.petr.tesarik.ext@huawei.com> (raw)

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 additional relocation types and removes the need
to implement a Global Offset Table (GOT) for the purgatory.

Petr Tesarik (2):
  riscv/kexec: handle R_RISCV_ADD16 and R_RISCV_SUB16 relocation types
  riscv/purgatory: do not link with string.o

Torsten Duwe (1):
  riscv/kexec: handle R_RISCV_CALL_PLT relocation type

 arch/riscv/kernel/elf_kexec.c | 7 +++++++
 arch/riscv/purgatory/Makefile | 9 +--------
 2 files changed, 8 insertions(+), 8 deletions(-)

-- 
2.25.1

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