From: WANG Chao <chaowang@redhat.com>
To: horms@verge.net.au, vgoyal@redhat.com, ebiederm@xmission.com,
hpa@zytor.com, trenn@suse.de, dyoung@redhat.com, linn@hp.com
Cc: kexec@lists.infradead.org
Subject: [PATCH v4 0/4] kexec-tools, x86: E820 memmap pass for kdump
Date: Wed, 19 Mar 2014 16:03:57 +0800 [thread overview]
Message-ID: <1395216241-13983-1-git-send-email-chaowang@redhat.com> (raw)
Hi, All
When kaslr comes in and kdump is broken, it seems about the right time to use
E820 instead of memmap=exactmap to pass memmap for kdump for the default memmap
passing mechanism:
http://lists.infradead.org/pipermail/kexec/2014-February/011048.html
Unfortunately, saved_max_pfn still got its user out there (calgry pci, it looks
like the only one). So for backward compatibility, I'm introducing a new option
--pass-memmap-cmdline to force kexec-tools to pass memmap=exactmap, the old way.
Any comment is appreciate!
v3->v4:
Linn: check return value of malloc (use xmalloc)
me: fix dbgprintf_mem_range
v2->v3:
Linn:
- do not free sd (setup_data) buffer
- reuse code in setup_e820 and setup_e820_ext
v1->v2:
Vivek:
- Use function instead of macro for dbgprint_mem_range
- Do not pass reserved memory range for kdump. It could addressed later
separately.
WANG Chao (4):
cleanup: add dbgprint_mem_range function
x86: Store memory ranges globally used for crash kernel to boot into
x86: add --pass-memmap-cmdline option
x86: Pass memory range via E820 for kdump
kexec/arch/i386/crashdump-x86.c | 157 ++++++++++++++++--------------
kexec/arch/i386/crashdump-x86.h | 6 +-
kexec/arch/i386/include/arch/options.h | 2 +
kexec/arch/i386/kexec-x86-common.c | 6 +-
kexec/arch/i386/kexec-x86.c | 4 +
kexec/arch/i386/kexec-x86.h | 1 +
kexec/arch/i386/x86-linux-setup.c | 171 ++++++++++++++++++++++-----------
kexec/arch/i386/x86-linux-setup.h | 1 +
kexec/arch/x86_64/kexec-x86_64.c | 5 +
kexec/kexec.c | 10 ++
kexec/kexec.h | 1 +
11 files changed, 231 insertions(+), 133 deletions(-)
--
1.8.5.3
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next reply other threads:[~2014-03-19 8:04 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 8:03 WANG Chao [this message]
2014-03-19 8:03 ` [PATCH v4 1/4] cleanup: add dbgprint_mem_range function WANG Chao
2014-03-20 3:49 ` Simon Horman
2014-03-19 8:03 ` [PATCH v4 2/4] x86: Store memory ranges globally used for crash kernel to boot into WANG Chao
2014-03-27 22:32 ` Vivek Goyal
2014-03-28 5:23 ` WANG Chao
2014-03-28 14:01 ` Vivek Goyal
2014-03-28 15:44 ` Thomas Renninger
2014-03-28 16:05 ` Vivek Goyal
2014-03-28 2:19 ` Dave Young
2014-03-28 5:36 ` WANG Chao
2014-03-28 3:24 ` Dave Young
2014-03-28 6:13 ` WANG Chao
2014-03-28 6:43 ` Dave Young
2014-03-28 6:51 ` Dave Young
2014-03-28 7:12 ` Dave Young
2014-04-01 7:04 ` WANG Chao
2014-04-01 8:41 ` Dave Young
2014-04-01 8:54 ` WANG Chao
2014-04-01 9:36 ` Dave Young
2014-04-01 9:52 ` WANG Chao
2014-03-19 8:04 ` [PATCH v4 3/4] x86: add --pass-memmap-cmdline option WANG Chao
2014-03-19 8:04 ` [PATCH v4 4/4] x86: Pass memory range via E820 for kdump WANG Chao
2014-03-27 22:50 ` Vivek Goyal
2014-03-28 4:52 ` WANG Chao
2014-03-28 13:53 ` Vivek Goyal
2014-03-28 3:28 ` Dave Young
2014-03-28 4:53 ` WANG Chao
2014-03-19 17:57 ` [PATCH v4 0/4] kexec-tools, x86: E820 memmap pass " Linn Crosetto
2014-03-20 3:50 ` Simon Horman
2014-03-20 5:00 ` WANG Chao
2014-03-20 15:42 ` Vivek Goyal
2014-03-27 10:31 ` WANG Chao
2014-03-27 22:23 ` Vivek Goyal
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