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

[anup.patel@linaro.org (Anup Patel)]

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(-)

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1.7.9.5