The Power State and Coordination Interface (PSCI) specification defines SYSTEM_OFF and SYSTEM_RESET functions for system poweroff and reboot.
This patchset adds: 1. Emulation of PSCI SYSTEM_OFF and SYSTEM_RESET functions in KVM ARM/ARM64 by forwarding them to user space (QEMU or KVMTOOL) 2. System poweroff and reboot using PSCI for ARM/ARM64 kernel
Anup Patel (5): ARM/ARM64: KVM: Update user space API header for PSCI emulation ARM/ARM64: KVM: Forward PSCI SYSTEM_OFF and SYSTEM_RESET to user space KVM: Add documentation for KVM_EXIT_PSCI exit reason ARM: psci: Add support for system reboot and poweroff ARM64: psci: Add support for system reboot and poweroff
Documentation/virtual/kvm/api.txt | 13 +++++++++ arch/arm/include/asm/kvm_psci.h | 25 +++++++++++++++- arch/arm/include/uapi/asm/kvm.h | 2 ++ arch/arm/kernel/psci.c | 36 +++++++++++++++++++++++ arch/arm/kvm/arm.c | 12 ++++++-- arch/arm/kvm/handle_exit.c | 12 ++++++-- arch/arm/kvm/psci.c | 57 ++++++++++++++++++++++++++++++++++--- arch/arm64/include/asm/kvm_psci.h | 25 +++++++++++++++- arch/arm64/include/uapi/asm/kvm.h | 2 ++ arch/arm64/kernel/psci.c | 36 +++++++++++++++++++++++ arch/arm64/kvm/handle_exit.c | 24 ++++++++++++---- include/uapi/linux/kvm.h | 7 +++++ 12 files changed, 233 insertions(+), 18 deletions(-)