On 01/08/2016 05:45 AM, Dmitry Andreev wrote:
This patch-set adds support for the new feature 'deflate-on-oom' that has been added to the QEMU virtio memory balloon a month ago. This feature lets a guest OS deflate balloon on OOM.
With 'deflate-on-oom' enabled virtio balloon will release it's memory if possible right before an OOM termination of processes.
QEMU commit with the complete feature description: http://git.qemu.org/?p=qemu.git;a=commit;h=e3816255bf4b6377bb405331e2ee0dc14...
v3 * pull head & merge * reword commit message [1/3] [2/3] * docs: s/OOM-/Out of Memory / [1/3] * merge and fix qemu 2.6.0 caps test [2/3] * s/> 0/ != VIR_TRISTATE_SWITCH_ABSENT/ [3/3]
Dmitry Andreev (3): conf: introduce 'autodeflate' attribute for memballoon device qemu: add capability check for memballoon 'deflate-on-oom' feature qemu: add support of optional 'autodeflate' attribute
docs/formatdomain.html.in | 10 ++ docs/schemas/domaincommon.rng | 5 + src/conf/domain_conf.c | 23 +++ src/conf/domain_conf.h | 1 + src/qemu/qemu_capabilities.c | 11 ++ src/qemu/qemu_capabilities.h | 2 + src/qemu/qemu_command.c | 11 ++ tests/qemucapabilitiesdata/caps_1.2.2-1.replies | 68 ++++++++- tests/qemucapabilitiesdata/caps_1.3.1-1.replies | 68 ++++++++- tests/qemucapabilitiesdata/caps_1.4.2-1.replies | 68 ++++++++- tests/qemucapabilitiesdata/caps_1.5.3-1.replies | 66 ++++++++- tests/qemucapabilitiesdata/caps_1.6.0-1.replies | 66 ++++++++- tests/qemucapabilitiesdata/caps_1.6.50-1.replies | 66 ++++++++- tests/qemucapabilitiesdata/caps_2.1.1-1.replies | 78 +++++++++- tests/qemucapabilitiesdata/caps_2.4.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.4.0-1.replies | 146 ++++++++++++++++++- tests/qemucapabilitiesdata/caps_2.5.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.5.0-1.replies | 161 ++++++++++++++++++++- tests/qemucapabilitiesdata/caps_2.6.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.6.0-1.replies | 161 ++++++++++++++++++++- .../qemuxml2argv-balloon-ccw-deflate.args | 20 +++ .../qemuxml2argv-balloon-ccw-deflate.xml | 21 +++ .../qemuxml2argv-balloon-device-deflate-off.args | 23 +++ .../qemuxml2argv-balloon-device-deflate-off.xml | 25 ++++ .../qemuxml2argv-balloon-device-deflate.args | 23 +++ .../qemuxml2argv-balloon-device-deflate.xml | 25 ++++ .../qemuxml2argv-balloon-mmio-deflate.args | 25 ++++ .../qemuxml2argv-balloon-mmio-deflate.xml | 30 ++++ tests/qemuxml2argvtest.c | 9 ++ 29 files changed, 1145 insertions(+), 70 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-ccw-deflate.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-ccw-deflate.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-device-deflate-off.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-device-deflate-off.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-device-deflate.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-device-deflate.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-mmio-deflate.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-balloon-mmio-deflate.xml
Had to update/merge in recent caps changes... Also had the same wierd problem in domain_conf.c and qemu_command.c w/r/t 'git am -3' merging code into wrong place... ACK - will push shortly (this was done before freeze, but I only got to it today...Prior version only needed minor updates... The default setting is to not enable feature, so should be safe.) Tks - John