From: Eric DeVolder <eric.devolder@oracle.com>
To: kexec@lists.infradead.org
Cc: boris.ostrovsky@oracle.com, eric.devolder@oracle.com
Subject: [PATCH v1 3/7] crashdump/x86: identify elfcorehdr segment for hotplug
Date: Thu, 20 Oct 2022 13:03:40 -0400 [thread overview]
Message-ID: <20221020170344.1962-4-eric.devolder@oracle.com> (raw)
In-Reply-To: <20221020170344.1962-1-eric.devolder@oracle.com>
Identify and record the elfcorehdr buffer so that it can be
excluded from the purgatory checksum/digest if --hotplug is
in effect.
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
---
kexec/arch/i386/crashdump-x86.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c
index df1f24c..cb86ca7 100644
--- a/kexec/arch/i386/crashdump-x86.c
+++ b/kexec/arch/i386/crashdump-x86.c
@@ -956,6 +956,9 @@ int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline,
} else {
memsz = bufsz;
}
+
+ /* Record the location of the elfcorehdr for hotplug handling */
+ info->elfcorehdr =
elfcorehdr = add_buffer(info, tmp, bufsz, memsz, align, min_base,
max_addr, -1);
dbgprintf("Created elf header segment at 0x%lx\n", elfcorehdr);
--
2.31.1
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next prev parent reply other threads:[~2022-10-20 17:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-20 17:03 [PATCH v1 0/7] crashdump: Kernel handling of CPU and memory hot un/plug Eric DeVolder
2022-10-20 17:03 ` [PATCH v1 1/7] crashdump: introduce the --hotplug option Eric DeVolder
2022-10-20 17:03 ` [PATCH v1 2/7] crashdump: exclude elfcorehdr segment from digest for hotplug Eric DeVolder
2022-10-20 17:03 ` Eric DeVolder [this message]
2022-10-20 17:03 ` [PATCH v1 4/7] kexec: create get_nr_cpus() Eric DeVolder
2022-10-20 17:03 ` [PATCH v1 5/7] crashdump: introduce --elfcorehdrsz option Eric DeVolder
2022-10-20 17:03 ` [PATCH v1 6/7] crashdump: create get_elfcorehdrsz() Eric DeVolder
2022-10-20 17:03 ` [PATCH v1 7/7] crashdump/x86: utilize get_elfcorehdrsz() Eric DeVolder
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