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443cbaf9e2
Now move the relevant codes into separate files:
kernel/crash_reserve.c, include/linux/crash_reserve.h.
And add config item CRASH_RESERVE to control its enabling.
And also update the old ifdeffery of CONFIG_CRASH_CORE, including of
<linux/crash_core.h> and config item dependency on CRASH_CORE
accordingly.
And also do renaming as follows:
- arch/xxx/kernel/{crash_core.c => vmcore_info.c}
because they are only related to vmcoreinfo exporting on x86, arm64,
riscv.
And also Remove config item CRASH_CORE, and rely on CONFIG_KEXEC_CORE to
decide if build in crash_core.c.
[yang.lee@linux.alibaba.com: remove duplicated include in vmcore_info.c]
Link: https://lkml.kernel.org/r/20240126005744.16561-1-yang.lee@linux.alibaba.com
Link: https://lkml.kernel.org/r/20240124051254.67105-3-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Pingfan Liu <piliu@redhat.com>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Michael Kelley <mhklinux@outlook.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
25 lines
586 B
C
25 lines
586 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/vmcore_info.h>
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#include <linux/pgtable.h>
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#include <asm/setup.h>
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void arch_crash_save_vmcoreinfo(void)
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{
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u64 sme_mask = sme_me_mask;
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VMCOREINFO_NUMBER(phys_base);
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VMCOREINFO_SYMBOL(init_top_pgt);
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vmcoreinfo_append_str("NUMBER(pgtable_l5_enabled)=%d\n",
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pgtable_l5_enabled());
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#ifdef CONFIG_NUMA
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VMCOREINFO_SYMBOL(node_data);
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VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
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#endif
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vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
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VMCOREINFO_NUMBER(KERNEL_IMAGE_SIZE);
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VMCOREINFO_NUMBER(sme_mask);
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}
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