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List:       kvm-ppc
Subject:    Re: [PATCH v4 5/6] KVM: PPC: Booke: Add setter functions for IVPR, IVOR2 and IVOR8 emulation
From:       Alexander Graf <agraf () suse ! de>
Date:       2014-08-27 12:16:04
Message-ID: 53FDCC04.9000605 () suse ! de
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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 <mihai.caraman@freescale.com>

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
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