Currently, KVM ARM/ARM64 only provides in-kernel emulation of Power State and Coordination Interface (PSCI) v0.1. This patchset aims at providing newer PSCI v0.2 for KVM ARM/ARM64 VCPUs such that it does not break current KVM ARM/ARM64 ABI. Also, the patchset provides emulation of only few PSCI v0.2 functions such as PSCI_VERSION, CPU_ON, and CPU_OFF. Emulation of other PSCI v0.2 functions will be added later. The user space tools (i.e. QEMU or KVMTOOL) will have to explicitly enable KVM_ARM_VCPU_PSCI_0_2 feature using KVM_ARM_VCPU_INIT ioctl for providing PSCI v0.2 to VCPUs. Anup Patel (3): KVM: Add capability to advertise PSCI v0.2 support ARM/ARM64: KVM: Add support for PSCI v0.2 emulation KVM: Documentation: Add info regarding KVM_ARM_VCPU_PSCI_0_2 feature Documentation/virtual/kvm/api.txt | 2 + arch/arm/include/asm/kvm_host.h | 2 +- arch/arm/include/uapi/asm/kvm.h | 39 ++++++++++++++++-- arch/arm/kvm/arm.c | 6 ++- arch/arm/kvm/psci.c | 79 ++++++++++++++++++++++++++++++------- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/uapi/asm/kvm.h | 39 ++++++++++++++++-- include/uapi/linux/kvm.h | 1 + 8 files changed, 146 insertions(+), 24 deletions(-) -- 1.7.9.5 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
