Add the required interfaces to schedule a VPE and perform a VINVALL command.
Signed-off-by: Marc Zyngier <[email protected]> --- 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 -- 2.1.4
