Add the required interfaces to schedule a VPE and perform a
VINVALL command.
Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
drivers/irqchip/irq-gic-v4.c | 25 +++++++++++++++++++++++++
include/linux/irqchip/arm-gic-v4.h | 2 ++
2 files changed, 27 insertions(+)
diff --git a/drivers/irqchip/irq-gic-v4.c b/drivers/irqchip/irq-gic-v4.c
index 2ea12baf2e53..3c5ad70193ed 100644
--- a/drivers/irqchip/irq-gic-v4.c
+++ b/drivers/irqchip/irq-gic-v4.c
@@ -56,3 +56,28 @@ void its_free_vcpu_irqs(struct its_vm *vm)
irq_domain_free_irqs(vm->vpes[0]->irq, vm->nr_vpes);
irq_domain_remove(vm->domain);
}
+
+static int its_send_vpe_cmd(struct its_vpe *vpe, struct its_cmd_info *info)
+{
+ return irq_set_vcpu_affinity(vpe->irq, info);
+}
+
+int its_schedule_vpe(struct its_vpe *vpe, bool on)
+{
+ struct its_cmd_info info;
+
+ WARN_ON(preemptible());
+
+ 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 7474a981ed6d..97bb97a11fef 100644
--- a/include/linux/irqchip/arm-gic-v4.h
+++ b/include/linux/irqchip/arm-gic-v4.h
@@ -90,5 +90,7 @@ struct its_cmd_info {
int its_alloc_vcpu_irqs(struct its_vm *vm);
void its_free_vcpu_irqs(struct its_vm *vm);
+int its_schedule_vpe(struct its_vpe *vpe, bool on);
+int its_invall_vpe(struct its_vpe *vpe);
#endif
--
2.11.0
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