Messages in this thread | | | From | Petr Tesarik <> | Subject | [PATCH v2 0/3] RISC-V: Fix a few kexec_file_load(2) failures | Date | Wed, 26 Jul 2023 11:53:58 +0200 |
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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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