From: Eric DeVolder <eric.devolder@oracle.com>
To: kexec@lists.infradead.org
Cc: boris.ostrovsky@oracle.com, eric.devolder@oracle.com
Subject: [PATCH v3 5/6] crashdump/x86: identify elfcorehdr segment for hotplug
Date: Wed, 27 Sep 2023 14:11:35 -0400 [thread overview]
Message-ID: <20230927181136.2627-6-eric.devolder@oracle.com> (raw)
In-Reply-To: <20230927181136.2627-1-eric.devolder@oracle.com>
Identify the segment containing the elfcorehdr buffer so that
it can be excluded from the purgatory checksum/digest, if hotplug
support 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);
--
2.39.3
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next prev parent reply other threads:[~2023-09-27 18:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-27 18:11 [PATCH v3 0/6] crashdump: Kernel handling of CPU and memory hot un/plug Eric DeVolder
2023-09-27 18:11 ` [PATCH v3 1/6] kexec: define KEXEC_UPDATE_ELFCOREHDR Eric DeVolder
2023-09-27 18:11 ` [PATCH v3 2/6] crashdump: introduce the hotplug command line options Eric DeVolder
2023-09-27 18:11 ` [PATCH v3 3/6] crashdump: setup general hotplug support Eric DeVolder
2023-09-27 18:11 ` [PATCH v3 4/6] crashdump: exclude elfcorehdr segment from digest for hotplug Eric DeVolder
2023-09-27 18:11 ` Eric DeVolder [this message]
2023-09-27 18:11 ` [PATCH v3 6/6] crashdump/x86: set the elfcorehdr segment size " Eric DeVolder
2023-10-04 12:08 ` [PATCH v3 0/6] crashdump: Kernel handling of CPU and memory hot un/plug Simon Horman
2023-10-04 18:23 ` Eric DeVolder
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