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irqchip/gic-v4: Add VPE command interface 

Add the required interfaces to schedule a VPE and perform a
VINVALL command.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
zero-colors
Marc Zyngier 2016-12-20 15:31:02 +00:00
parent 7de5c0af9c
commit eab84318c2
2 changed files with 27 additions and 0 deletions
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25
drivers/irqchip/irq-gic-v4.c
View File

@ -72,3 +72,28 @@ void its_free_vcpu_irqs(struct its_vm *vm)
irq_domain_remove(vm->domain);
irq_domain_free_fwnode(vm->fwnode);
}
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);
}

2
include/linux/irqchip/arm-gic-v4.h
View File

@ -93,5 +93,7 @@ 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