[PATCH v2 0/4] Target CPU=Host implementation for KVM ARM/ARM64

[Anup Patel]

On Sat, Sep 14, 2013 at 4:38 PM, Anup Patel <anup.patel at linaro.org> wrote:
> It will be very useful for user space if it has a method of querying
> VCPU target type matching to underlying Host. We can use such querying
> mechanism and implement machine models in user space where VCPU target
> type is always same-as/similar-to underlying Host (i.e. Target CPU=Host).
>
> This patch series implements KVM_ARM_PREFERRED_TARGET ioclt for querying
> VCPU target type matching underlying host. Using this new ioctl we can
> implement VCPU target CPU=Host in user space (i.e. QEMU/KVMTOOL).
>
> Also, it is not mandatory to call KVM_ARM_PREFERRED_TARGET ioctl and the
> old method of trying all possible target types using KVM_ARM_VCPU_INIT
> ioctl to initialize VCPU works fine.
>
> Anup Patel (4):
>   ARM: KVM: Implement kvm_vcpu_preferred_target() function
>   ARM64: KVM: Implement kvm_vcpu_preferred_target() function
>   ARM/ARM64: KVM: Implement KVM_ARM_PREFERRED_TARGET ioctl
>   KVM: Add documentation for KVM_ARM_PREFERRED_TARGET ioctl
>
>  Documentation/virtual/kvm/api.txt |   26 ++++++++++++++++++++++----
>  arch/arm/include/asm/kvm_host.h   |    1 +
>  arch/arm/kvm/arm.c                |   12 ++++++++++++
>  arch/arm/kvm/guest.c              |   19 +++++++++++++++++++
>  arch/arm64/include/asm/kvm_host.h |    1 +
>  arch/arm64/kvm/guest.c            |   20 ++++++++++++++++++++
>  include/uapi/linux/kvm.h          |    1 +
>  7 files changed, 76 insertions(+), 4 deletions(-)
>
> --
> 1.7.9.5
>
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Hi Christoffer,

I forgot to address two of your comments in this patch-series:
1. Make the IOCTL as VM IOCTL
2. Return ENODEV instead of EINVAL from IOCTL.

I will take care of the above in v3.

Regards,
Anup