[PATCH v5 02/11] ARM/ARM64: KVM: Add base for PSCI v0.2 emulation

[Christoffer Dall]

On Fri, Mar 21, 2014 at 06:23:25PM +0530, Anup Patel wrote:
> 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 at linaro.org>
> Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar at linaro.org>

The content here can carry my Reviewed-by tag, but I think Rob's point
about sharing this code between KVM arm/arm64 and the PSCI code itself
it important, see:

http://lists.infradead.org/pipermail/linux-arm-kernel/2014-March/241792.html


Thanks,
-Christoffer