ARM/ARM64: KVM: Add base for PSCI v0.2 emulation
authorAnup Patel <anup.patel@linaro.org>
Tue, 29 Apr 2014 05:54:16 +0000 (11:24 +0530)
committerChristoffer Dall <christoffer.dall@linaro.org>
Wed, 30 Apr 2014 11:18:57 +0000 (04:18 -0700)
commit7d0f84aae9e231930985eaff63ac91b61aaa15d6
treeb034732021a3b095fd39139f3205ddfe299b7c2f
parente546eea74ec66698e29c583639cf6e2a11e46490
ARM/ARM64: KVM: Add base for PSCI v0.2 emulation

Currently, the in-kernel PSCI emulation provides PSCI v0.1 interface to
VCPUs. This patch extends current in-kernel PSCI emulation to provide
PSCI v0.2 interface to VCPUs.

By default, ARM/ARM64 KVM will always provide PSCI v0.1 interface for
keeping the ABI backward-compatible.

To select PSCI v0.2 interface for VCPUs, the user space (i.e. QEMU or
KVMTOOL) will have to set KVM_ARM_VCPU_PSCI_0_2 feature when doing VCPU
init using KVM_ARM_VCPU_INIT ioctl.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
arch/arm/include/asm/kvm_host.h
arch/arm/include/asm/kvm_psci.h
arch/arm/include/uapi/asm/kvm.h
arch/arm/kvm/psci.c
arch/arm64/include/asm/kvm_host.h
arch/arm64/include/asm/kvm_psci.h
arch/arm64/include/uapi/asm/kvm.h