diff options
| 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-options.hx | |
| parent | 3c4a4d0dcbf4269e125f92df06816db1c1e86d20 (diff) | |
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-options.hx')
| -rw-r--r-- | qemu-options.hx | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 47cb5bd311..6aeef6a845 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -37,7 +37,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ " property accel=accel1[:accel2[:...]] selects accelerator\n" " supported accelerators are kvm, xen, tcg (default: tcg)\n" " kernel_irqchip=on|off controls accelerated irqchip support\n" - " kvm_shadow_mem=size of KVM shadow MMU\n", + " kvm_shadow_mem=size of KVM shadow MMU\n" + " dump-guest-core=on|off include guest memory in a core dump (default=on)\n", QEMU_ARCH_ALL) STEXI @item -machine [type=]@var{name}[,prop=@var{value}[,...]] @@ -54,6 +55,8 @@ to initialize. Enables in-kernel irqchip support for the chosen accelerator when available. @item kvm_shadow_mem=size Defines the size of the KVM shadow MMU. +@item dump-guest-core=on|off +Include guest memory in a core dump. The default is on. @end table ETEXI |