From 39365395046fe74bebf6f70e86439f48ba56a75e Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Thu, 14 Sep 2023 11:31:41 +0800 Subject: riscv: kdump: use generic interface to simplify crashkernel reservation With the help of newly changed function parse_crashkernel() and generic reserve_crashkernel_generic(), crashkernel reservation can be simplified by steps: 1) Add a new header file , and define CRASH_ALIGN, CRASH_ADDR_LOW_MAX, CRASH_ADDR_HIGH_MAX and DEFAULT_CRASH_KERNEL_LOW_SIZE in ; 2) Add arch_reserve_crashkernel() to call parse_crashkernel() and reserve_crashkernel_generic(); 3) Add ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION Kconfig in arch/riscv/Kconfig. The old reserve_crashkernel_low() and reserve_crashkernel() can be removed. [chenjiahao16@huawei.com: fix crashkernel reserving problem on RISC-V] Link: https://lkml.kernel.org/r/20230925024333.730964-1-chenjiahao16@huawei.com Link: https://lkml.kernel.org/r/20230914033142.676708-9-bhe@redhat.com Signed-off-by: Baoquan He Signed-off-by: Chen Jiahao Cc: Catalin Marinas Cc: Chen Jiahao Cc: Zhen Lei Signed-off-by: Andrew Morton --- arch/riscv/Kconfig | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/riscv/Kconfig') diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index d607ab0f7c6d..25474f8c12b7 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -694,6 +694,9 @@ config ARCH_SUPPORTS_KEXEC_PURGATORY config ARCH_SUPPORTS_CRASH_DUMP def_bool y +config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION + def_bool CRASH_CORE + config COMPAT bool "Kernel support for 32-bit U-mode" default 64BIT -- cgit