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| author | Jason Baron <jbaron@redhat.com> | 2012-08-02 15:44:16 -0400 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-08-16 13:41:15 -0500 |
| commit | ddb97f1debbb6be8d871f3b565f7b8befebf0f4f (patch) | |
| tree | a81ce727e2c5f9d058d156b0754bdbaaafd00d25 /qemu-config.c | |
| parent | 3c4a4d0dcbf4269e125f92df06816db1c1e86d20 (diff) | |
| download | focaccia-qemu-ddb97f1debbb6be8d871f3b565f7b8befebf0f4f.tar.gz focaccia-qemu-ddb97f1debbb6be8d871f3b565f7b8befebf0f4f.zip | |
memory: add -machine dump-guest-core=on|off
Add a new '[,dump-guest-core=on|off]' option to the '-machine' option. When
'dump-guest-core=off' is specified, guest memory is omitted from the core dump.
The default behavior continues to be to include guest memory when a core dump is
triggered. In my testing, this brought the core dump size down from 384MB to 6MB
on a 2GB guest.
Is anything additional required to preserve this setting for migration or
savevm? I don't believe so.
Changelog:
v3:
Eliminate globals as per Anthony's suggestion
set no dump from qemu_ram_remap() as well
v2:
move the option from -m to -machine, rename option dump -> dump-guest-core
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-config.c')
| -rw-r--r-- | qemu-config.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/qemu-config.c b/qemu-config.c index 5c3296b8c6..6700de0c71 100644 --- a/qemu-config.c +++ b/qemu-config.c @@ -595,6 +595,10 @@ static QemuOptsList qemu_machine_opts = { .name = "dt_compatible", .type = QEMU_OPT_STRING, .help = "Overrides the \"compatible\" property of the dt root node", + }, { + .name = "dump-guest-core", + .type = QEMU_OPT_BOOL, + .help = "Include guest memory in a core dump", }, { /* End of list */ } }, |