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@linaro.org Signed-off-by: Pranavkumar Sawargaonkar pranavkumar@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