Am 17.12.2013 um 12:35 schrieb Anup Patel anup.patel@linaro.org:
The Power State and Coordination Interface (PSCI) specification defines SYSTEM_OFF and SYSTEM_RESET functions for system poweroff and reboot.
This patchset adds emulation of PSCI SYSTEM_OFF and SYSTEM_RESET functions in KVM ARM/ARM64 by forwarding them to user space (QEMU or KVMTOOL) using KVM_EXIT_SYSTEM_EVENT exit reason.
To try this patch from guest kernel, we will need PSCI-based restart and poweroff support in the guest kenel for both ARM and ARM64.
Rob Herring has already submitted patches for PSCI-based restart and poweroff in ARM kernel but these are not merged yet due unstable device tree bindings of kernel PSCI support. We will be having similar patches for PSCI-based restart and poweroff in ARM64 kernel. (Refer http://www.spinics.net/lists/arm-kernel/msg262217.html) (Refer http://www.spinics.net/lists/devicetree/msg05348.html)
Reviewed-by: Alexander Graf agraf@suse.de
Alex