aboutsummaryrefslogtreecommitdiff
path: root/hmp-commands.hx
diff options
context:
space:
mode:
authorQiao Nuohan <qiaonuohan@cn.fujitsu.com>2014-04-17 16:15:07 +0800
committerLuiz Capitulino <lcapitulino@redhat.com>2014-04-25 11:18:33 -0400
commit1b7a0f758bb3e49c8468fd2af75ebb215b26e6f4 (patch)
treef96d2007c6270575c7c254d5ebccd588888148ec /hmp-commands.hx
parentc20499d9854e5d04710f17d577df65ed7c7aacf1 (diff)
downloadqemu-arm-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.hx13
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.