Subject: Re: [PATCH v4 5/6] KVM: PPC: Booke: Add setter functions for IVPR, IVOR2 and IVOR8 emulation

From: Alexander Graf <[email-masked]>
Date: Wed, 27 Aug 2014 14:16:04 +0200

On 20.08.14 15:36, Mihai Caraman wrote:
> Add setter functions for IVPR, IVOR2 and IVOR8 emulation in preparation
> for ONE_REG support.
> 
> Signed-off-by: Mihai Caraman <[email-masked]>

What about the other GIVORs?

Also, I would prefer to have a common helper for IVOR setting that
simply covers SPRN_GIVOR setting along the way. Something like

void kvmppc_set_ivor(struct kvm_vcpu *vcpu, int irqprio_ivor, u16 new_ivor)
{
    vcpu->arch.ivor[irqprio_ivor] = new_ivor;
    switch (irqprio_ivor) {
    case BOOKE_IRQPRIO_DATA_STORAGE:
        mtspr(SPRN_GIVOR2, new_ivor);
        break;
    ...
    }
}

which you can just call from all the IVOR setters. In fact, you can
probably combine all of the ONE_REG handlers into a single handler that
just does a quick table lookup for its irqprio.

Alex