Re: [PATCH v5 6/9] irqchip/gic-v3: Parse and export virtual GIC information

[Julien Grall]

Hello Hanjun,

On 11/04/16 06:27, Hanjun Guo wrote:
> On 2016/4/4 19:37, Julien Grall wrote:
> > +static void __init gic_acpi_setup_kvm_info(void)
> > +{
> > +    int irq;
> > +
> > +    if (!gic_acpi_collect_virt_info()) {
> > +        pr_warn("Unable to get hardware information used for
> > virtualization\n");
> > +        return;
> > +    }
> > +
> > +    gic_v3_kvm_info.type = GIC_V3;
> > +
> > +    irq = acpi_register_gsi(NULL, acpi_data.maint_irq,
> > +                acpi_data.maint_irq_mode,
> > +                ACPI_ACTIVE_HIGH);
> > +    if (irq <= 0)
> > +        return;
> > +
> > +    gic_v3_kvm_info.maint_irq = irq;
> > +
> > +    if (acpi_data.vcpu_base) {
>
> Sorry, I'm not familiar with KVM, but I got a question here, will
> KVM works without valid vcpu_base in GICv3 mode?

vcpu_base is only required for supporting GICv2 on GICv3.

Regards,

--
Julien Grall