If the OS is not started, QEMU sends an event to the OS that is lost and cannot be recovered. An unplug is not able to restore QEMU in a coherent state. So, while the OS is not started, disable CPU and memory hotplug. We use option vector 6 to know if the OS is started
This series moves error checking for memory hotplug in a pre_plug function, and introduces the option vector 6 management. It also revert previous fix which was not really fixing the hotplug problem when the OS is not running. Laurent Vivier (4): spapr: add pre_plug function for memory spapr: add option vector 6 spapr: disable hotplugging without OS Revert "spapr: fix memory hot-unplugging" hw/ppc/spapr.c | 103 ++++++++++++++++++++++++++++++++++++-------- hw/ppc/spapr_drc.c | 20 ++------- hw/ppc/spapr_hcall.c | 5 ++- hw/ppc/spapr_ovec.c | 8 ++++ include/hw/ppc/spapr.h | 2 + include/hw/ppc/spapr_drc.h | 1 - include/hw/ppc/spapr_ovec.h | 7 +++ 7 files changed, 109 insertions(+), 37 deletions(-) -- 2.9.4
