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| author | Qiao Nuohan <qiaonuohan@cn.fujitsu.com> | 2014-04-17 16:15:07 +0800 |
|---|---|---|
| committer | Luiz Capitulino <lcapitulino@redhat.com> | 2014-04-25 11:18:33 -0400 |
| commit | 1b7a0f758bb3e49c8468fd2af75ebb215b26e6f4 (patch) | |
| tree | f96d2007c6270575c7c254d5ebccd588888148ec /hmp-commands.hx | |
| parent | c20499d9854e5d04710f17d577df65ed7c7aacf1 (diff) | |
| download | qemu-1b7a0f758bb3e49c8468fd2af75ebb215b26e6f4.tar.gz | |
HMP: support specifying dump format for dump-guest-memory
Dumping guest memory is available to specify the dump format now. This patch
adds options '-z|-l|-s' to HMP command dump-guest-memory to specify dumping in
kdump-compression format, with zlib/lzo/snappy compression. And without these
options ELF format will be used.
The discussion about this feature is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-03/msg04235.html
Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Suggested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> (on s390x/kvm)
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'hmp-commands.hx')
| -rw-r--r-- | hmp-commands.hx | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx index d79cb977a9..8971f1b153 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1000,10 +1000,13 @@ ETEXI { .name = "dump-guest-memory", - .args_type = "paging:-p,filename:F,begin:i?,length:i?", - .params = "[-p] filename [begin length]", + .args_type = "paging:-p,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?", + .params = "[-p] [-z|-l|-s] filename [begin length]", .help = "dump guest memory into file 'filename'.\n\t\t\t" "-p: do paging to get guest's memory mapping.\n\t\t\t" + "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t" + "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t" + "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t" "begin: the starting physical address.\n\t\t\t" "length: the memory size, in bytes.", .mhandler.cmd = hmp_dump_guest_memory, @@ -1012,10 +1015,14 @@ ETEXI STEXI @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length} +@item dump-guest-memory [-z|-l|-s] @var{filename} @findex dump-guest-memory Dump guest memory to @var{protocol}. The file can be processed with crash or -gdb. +gdb. Without -z|-l|-s, the dump format is ELF. -p: do paging to get guest's memory mapping. + -z: dump in kdump-compressed format, with zlib compression. + -l: dump in kdump-compressed format, with lzo compression. + -s: dump in kdump-compressed format, with snappy compression. filename: dump file name. begin: the starting physical address. It's optional, and should be specified together with length. |