On 11.10.2012, at 18:13, Mihai Caraman wrote:
> Add KVM_SREGS_E_64 feature and EPCR spr support in get/set sregs for 64-bit
> hosts.
Why would we need this if we have a proper ONE_REG interface for EPCR?
Alex
>
> Signed-off-by: Mihai Caraman <mihai.caraman@xxxxxxxxxxxxx>
> ---
> arch/powerpc/kvm/booke.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> index e6159f5..d396374 100644
> --- a/arch/powerpc/kvm/booke.c
> +++ b/arch/powerpc/kvm/booke.c
> @@ -1215,6 +1215,9 @@ static void get_sregs_base(struct kvm_vcpu *vcpu,
> u64 tb = get_tb();
>
> sregs->u.e.features |= KVM_SREGS_E_BASE;
> +#ifdef CONFIG_64BIT
> + sregs->u.e.features |= KVM_SREGS_E_64;
> +#endif
>
> sregs->u.e.csrr0 = vcpu->arch.csrr0;
> sregs->u.e.csrr1 = vcpu->arch.csrr1;
> @@ -1226,6 +1229,9 @@ static void get_sregs_base(struct kvm_vcpu *vcpu,
> sregs->u.e.dec = kvmppc_get_dec(vcpu, tb);
> sregs->u.e.tb = tb;
> sregs->u.e.vrsave = vcpu->arch.vrsave;
> +#if defined(CONFIG_64BIT) && defined(CONFIG_KVM_BOOKE_HV)
> + sregs->u.e.epcr = vcpu->arch.epcr;
> +#endif
> }
>
> static int set_sregs_base(struct kvm_vcpu *vcpu,
> @@ -1241,6 +1247,7 @@ static int set_sregs_base(struct kvm_vcpu *vcpu,
> set_guest_dear(vcpu, sregs->u.e.dear);
> vcpu->arch.vrsave = sregs->u.e.vrsave;
> kvmppc_set_tcr(vcpu, sregs->u.e.tcr);
> + kvmppc_set_epcr(vcpu, sregs->u.e.epcr);
>
> if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_DEC) {
> vcpu->arch.dec = sregs->u.e.dec;
> --
> 1.7.4.1
>
>
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