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Re: [PATCH v2 14/26] xen/riscv: add very early virtual APLIC (vAPLIC) initialization support
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 5 Jun 2026 14:05:39 +0200
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- Cc: Romain Caritey <Romain.Caritey@xxxxxxxxxxxxx>, Alistair Francis <alistair.francis@xxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Fri, 05 Jun 2026 12:05:46 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 05.06.2026 13:59, Oleksii Kurochko wrote:
> On 6/4/26 1:29 PM, Oleksii Kurochko wrote:
> @@ -105,29 +111,18 @@ int intc_route_irq_to_guest(struct irq_desc *desc,
>
> int __init make_intc_domU_node(struct kernel_info *kinfo)
> {
> - struct vintc *vintc = kinfo->bd.d->arch.vintc;
> -
> - ASSERT(vintc->init_ops && vintc->init_ops->make_domu_dt_node);
>
> - return vintc->init_ops->make_domu_dt_node(kinfo);
> + return vintc_init_ops->make_domu_dt_node(kinfo);
> }
>
> int domain_vintc_init(struct domain *d)
> {
> - int ret = -EOPNOTSUPP;
> - const enum intc_version ver = intc_hw_ops->info->hw_version;
> -
> - switch ( ver )
> - {
> - case INTC_APLIC:
> - ret = domain_vaplic_init(d);
> - break;
> + int ret;
>
> - default:
> - printk("vintc (ver:%d) isn't implemented\n", ver);
> - break;
> - }
>
> + ret = vintc_init_ops->init(d);
> if ( !ret )
> {
> d->arch.vintc->allocated_irqs =
Thinking about it some more, in particular the longer term case of domains
not inheriting HW properties may end up better without this change, i.e.
keeping the switch() that you had (and a direct call).
Jan
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