Hi
On 17/01/2017 11:20, Marc Zyngier wrote:
> Add the required interfaces to schedule a VPE and perform a
> VINVALL command.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
I think it would have helped me to get the VPE and VLPI API earlier
since it brings the user point of you.
Eric
> ---
> drivers/irqchip/irq-gic-v4.c | 31 +++++++++++++++++++++++++++++++
> include/linux/irqchip/arm-gic-v4.h | 2 ++
> 2 files changed, 33 insertions(+)
>
> diff --git a/drivers/irqchip/irq-gic-v4.c b/drivers/irqchip/irq-gic-v4.c
> index b9a0b34..7d74089 100644
> --- a/drivers/irqchip/irq-gic-v4.c
> +++ b/drivers/irqchip/irq-gic-v4.c
> @@ -109,3 +109,34 @@ void its_free_vcpu_irqs(struct its_vm *vm, int nr_vpes)
>
> irq_domain_free_irqs(irq, nr_vpes);
> }
> +
> +static int its_send_vpe_cmd(struct its_vpe *vpe, struct its_cmd_info *info)
> +{
> + unsigned int irq;
> + irq_hw_number_t hwirq;
> +
> + WARN_ON(preemptible());
> +
> + hwirq = vpe->vpe_db_lpi - vpe->its_vm->db_lpi_base;
> + irq = irq_find_mapping(vpe->its_vm->domain, hwirq);
> +
> + return irq_set_vcpu_affinity(irq, info);
> +}
> +
> +int its_schedule_vpe(struct its_vpe *vpe, bool on)
> +{
> + struct its_cmd_info info;
> +
> + info.cmd_type = on ? SCHEDULE_VPE : DESCHEDULE_VPE;
> +
> + return its_send_vpe_cmd(vpe, &info);
> +}
> +
> +int its_invall_vpe(struct its_vpe *vpe)
> +{
> + struct its_cmd_info info = {
> + .cmd_type = INVALL_VPE,
> + };
> +
> + return its_send_vpe_cmd(vpe, &info);
> +}
> diff --git a/include/linux/irqchip/arm-gic-v4.h b/include/linux/irqchip/arm-gic-v4.h
> index 2463d70..1c58add 100644
> --- a/include/linux/irqchip/arm-gic-v4.h
> +++ b/include/linux/irqchip/arm-gic-v4.h
> @@ -91,5 +91,7 @@ struct its_cmd_info {
>
> int its_alloc_vcpu_irqs(struct its_vm *vm, struct its_vpe **vpes, int nr_vpes);
> void its_free_vcpu_irqs(struct its_vm *vm, int nr_vpes);
> +int its_schedule_vpe(struct its_vpe *vpe, bool on);
> +int its_invall_vpe(struct its_vpe *vpe);
>
> #endif
>
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