diff options
| author | Amit Shah <amit.shah@redhat.com> | 2014-06-20 18:56:08 +0530 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2014-06-23 19:14:50 +0200 |
| commit | abfd9ce341ec66eb2e63756b9da43f77c054788e (patch) | |
| tree | 025a056ec9e74179c8b4ca4971b30cc06c261281 /qemu-options.hx | |
| parent | e325b49a320b493cc5d69e263751ff716dc458fe (diff) | |
migration: dump vmstate info as a json file for static analysis
This commit adds a new command, '-dump-vmstate', that takes a filename
as an argument. When executed, QEMU will dump the vmstate information
for the machine type it's invoked with to the file, and quit.
The JSON-format output can then be used to compare the vmstate info for
different QEMU versions, specifically to test whether live migration
would break due to changes in the vmstate data.
A Python script that compares the output of such JSON dumps is included
in the following commit.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index ca75760b27..ff76ad4830 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3252,6 +3252,20 @@ STEXI prepend a timestamp to each log message.(default:on) ETEXI +DEF("dump-vmstate", HAS_ARG, QEMU_OPTION_dump_vmstate, + "-dump-vmstate <file>\n" + " Output vmstate information in JSON format to file.\n" + " Use the scripts/vmstate-static-checker.py file to\n" + " check for possible regressions in migration code\n" + " by comparing two such vmstate dumps.", + QEMU_ARCH_ALL) +STEXI +@item -dump-vmstate @var{file} +@findex -dump-vmstate +Dump json-encoded vmstate information for current machine type to file +in @var{file} +ETEXI + HXCOMM This is the last statement. Insert new options before this line! STEXI @end table |