On Thursday, June 06, 2013 09:40:32 AM liguang wrote: > This patch-set try to support physically hot-plug/unplug > a cpu automatically, that is: > if you offline a cpu, it will automatically actually remove > a cpu, and if you hot-plug a cpu, then it will online this > cpu automatically.
No and no. Why do you need this? Rafael > so, offline is just like eject, but eject attribute seems not > available since recent kernel(can't figure out when), with > this driver, if allowed, it will trigger a eject cpu process. > and for automatically online, it was said there are objections, > don't know the reason, so, send this patch-set boldly. > > of course, this approach is for QEMU 's hotplug cpu emulation > only, but not limited, if someone like to explore ec space to > implment cpu hot-plug/unplug for real platform please > feel free to continue. > > Li Guang (3) > drivers/platform/x86: add cpu physically hotplug driver > ec: add ec space notifier > cpu_physic_hotplug: register handler for ec space notifier > > drivers/acpi/ec.c | 32 > ++++++++++++++++++++++++++++++++ > drivers/platform/x86/Kconfig | 8 ++++ > drivers/platform/x86/Makefile | 1 + > drivers/platform/x86/cpu_physic_hotplug.c | 90 +++++++++++++++++++++++++++++ > include/linux/acpi.h | 2 ++ > 5 files changed, 130 insertions(+), 3 deletions(-) > create mode 100644 drivers/platform/x86/cpu_physic_hotplug.c -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
