[RFC PATCH 5/6] KVM: PPC: Book3E: Add ONE_REG AltiVec support
Scott Wood
scottwood at freescale.com
Wed Jun 5 08:40:22 EST 2013
On 06/03/2013 03:54:27 PM, Mihai Caraman wrote:
> Add ONE_REG support for AltiVec on Book3E.
>
> Signed-off-by: Mihai Caraman <mihai.caraman at freescale.com>
> ---
> arch/powerpc/kvm/booke.c | 32 ++++++++++++++++++++++++++++++++
> 1 files changed, 32 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> index 01eb635..019496d 100644
> --- a/arch/powerpc/kvm/booke.c
> +++ b/arch/powerpc/kvm/booke.c
> @@ -1570,6 +1570,22 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu
> *vcpu, struct kvm_one_reg *reg)
> case KVM_REG_PPC_DEBUG_INST:
> val = get_reg_val(reg->id, KVMPPC_INST_EHPRIV);
> break;
> +#ifdef CONFIG_ALTIVEC
> + case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
> + if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
> + r = -ENXIO;
> + break;
> + }
> + val.vval = vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0];
> + break;
> + case KVM_REG_PPC_VSCR:
> + if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
> + r = -ENXIO;
> + break;
> + }
> + val = get_reg_val(reg->id, vcpu->arch.vscr.u[3]);
> + break;
Why u[3]?
-Scott
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