fdc268232d
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 <asm/crash_core.h>, and define CRASH_ALIGN, CRASH_ADDR_LOW_MAX, CRASH_ADDR_HIGH_MAX and DEFAULT_CRASH_KERNEL_LOW_SIZE in <asm/crash_core.h>; 2) Add arch_reserve_crashkernel() to call parse_crashkernel() and reserve_crashkernel_generic(); 3) Add ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION Kconfig in arch/arm64/Kconfig. The old reserve_crashkernel_low() and reserve_crashkernel() can be removed. Link: https://lkml.kernel.org/r/20230914033142.676708-8-bhe@redhat.com Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Zhen Lei <thunder.leizhen@huawei.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Jiahao <chenjiahao16@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
10 lines
329 B
C
10 lines
329 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _ARM64_CRASH_CORE_H
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#define _ARM64_CRASH_CORE_H
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/* Current arm64 boot protocol requires 2MB alignment */
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#define CRASH_ALIGN SZ_2M
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#define CRASH_ADDR_LOW_MAX arm64_dma_phys_limit
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#define CRASH_ADDR_HIGH_MAX (PHYS_MASK + 1)
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#endif
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