Re: [PATCH v10 4/6] selftests: KVM: Add fpu and one reg set/get library functions

[Christian Borntraeger <borntraeger@de.ibm.com>]

Paolo,

are you ok with me taking this patch for my s390 pull request to you?
Ideally still for 5.6?


On 31.01.20 11:02, Janosch Frank wrote:
> Add library access to more registers.
> 
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> ---
>  .../testing/selftests/kvm/include/kvm_util.h  |  6 ++++
>  tools/testing/selftests/kvm/lib/kvm_util.c    | 36 +++++++++++++++++++
>  2 files changed, 42 insertions(+)
> 
> diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h
> index 29cccaf96baf..ae0d14c2540a 100644
> --- a/tools/testing/selftests/kvm/include/kvm_util.h
> +++ b/tools/testing/selftests/kvm/include/kvm_util.h
> @@ -125,6 +125,12 @@ void vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
>  		    struct kvm_sregs *sregs);
>  int _vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
>  		    struct kvm_sregs *sregs);
> +void vcpu_fpu_get(struct kvm_vm *vm, uint32_t vcpuid,
> +		  struct kvm_fpu *fpu);
> +void vcpu_fpu_set(struct kvm_vm *vm, uint32_t vcpuid,
> +		  struct kvm_fpu *fpu);
> +void vcpu_get_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg);
> +void vcpu_set_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg);
>  #ifdef __KVM_HAVE_VCPU_EVENTS
>  void vcpu_events_get(struct kvm_vm *vm, uint32_t vcpuid,
>  		     struct kvm_vcpu_events *events);
> diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
> index 41cf45416060..a6dd0401eb50 100644
> --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> @@ -1373,6 +1373,42 @@ int _vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_sregs *sregs)
>  	return ioctl(vcpu->fd, KVM_SET_SREGS, sregs);
>  }
> 
> +void vcpu_fpu_get(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_fpu *fpu)
> +{
> +	int ret;
> +
> +	ret = _vcpu_ioctl(vm, vcpuid, KVM_GET_FPU, fpu);
> +	TEST_ASSERT(ret == 0, "KVM_GET_FPU failed, rc: %i errno: %i (%s)",
> +		    ret, errno, strerror(errno));
> +}
> +
> +void vcpu_fpu_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_fpu *fpu)
> +{
> +	int ret;
> +
> +	ret = _vcpu_ioctl(vm, vcpuid, KVM_SET_FPU, fpu);
> +	TEST_ASSERT(ret == 0, "KVM_SET_FPU failed, rc: %i errno: %i (%s)",
> +		    ret, errno, strerror(errno));
> +}
> +
> +void vcpu_get_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg)
> +{
> +	int ret;
> +
> +	ret = _vcpu_ioctl(vm, vcpuid, KVM_GET_ONE_REG, reg);
> +	TEST_ASSERT(ret == 0, "KVM_GET_ONE_REG failed, rc: %i errno: %i (%s)",
> +		    ret, errno, strerror(errno));
> +}
> +
> +void vcpu_set_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg)
> +{
> +	int ret;
> +
> +	ret = _vcpu_ioctl(vm, vcpuid, KVM_SET_ONE_REG, reg);
> +	TEST_ASSERT(ret == 0, "KVM_SET_ONE_REG failed, rc: %i errno: %i (%s)",
> +		    ret, errno, strerror(errno));
> +}
> +
>  /*
>   * VCPU Ioctl
>   *
>