irqchip/gic-v4.1: Add VSGI property setup

Add the SGI configuration entry point for KVM to use.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20200304203330.4967-16-maz@kernel.org

diff --git a/drivers/irqchip/irq-gic-v4.c b/drivers/irqchip/irq-gic-v4.c
index 99b33f6..0c18714 100644 (file)
--- a/drivers/irqchip/irq-gic-v4.c
+++ b/drivers/irqchip/irq-gic-v4.c
@@ -320,6 +320,19 @@ int its_prop_update_vlpi(int irq, u8 config, bool inv)
        return irq_set_vcpu_affinity(irq, &info);
 }
 
+int its_prop_update_vsgi(int irq, u8 priority, bool group)
+{
+       struct its_cmd_info info = {
+               .cmd_type = PROP_UPDATE_VSGI,
+               {
+                       .priority       = priority,
+                       .group          = group,
+               },
+       };
+
+       return irq_set_vcpu_affinity(irq, &info);
+}
+
 int its_init_v4(struct irq_domain *domain,
                const struct irq_domain_ops *vpe_ops,
                const struct irq_domain_ops *sgi_ops)

diff --git a/include/linux/irqchip/arm-gic-v4.h b/include/linux/irqchip/arm-gic-v4.h
index b120a01..6976b83 100644 (file)
--- a/include/linux/irqchip/arm-gic-v4.h
+++ b/include/linux/irqchip/arm-gic-v4.h
@@ -134,6 +134,7 @@ int its_map_vlpi(int irq, struct its_vlpi_map *map);
 int its_get_vlpi(int irq, struct its_vlpi_map *map);
 int its_unmap_vlpi(int irq);
 int its_prop_update_vlpi(int irq, u8 config, bool inv);
+int its_prop_update_vsgi(int irq, u8 priority, bool group);
 
 struct irq_domain_ops;
 int its_init_v4(struct irq_domain *domain,