As KVM needs to know about the availability of GICv4 to enable
direct injection of interrupts, let's advertise the feature in
the gic_kvm_info structure.

Signed-off-by: Marc Zyngier <[email protected]>
---
 drivers/irqchip/irq-gic-v3.c           | 2 ++
 include/linux/irqchip/arm-gic-common.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 17f0ad41864f..e2b8409dd76e 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1159,6 +1159,7 @@ static void __init gic_of_setup_kvm_info(struct 
device_node *node)
        if (!ret)
                gic_v3_kvm_info.vcpu = r;
 
+       gic_v3_kvm_info.has_v4 = gic_data.rdists.has_vlpis;
        gic_set_kvm_info(&gic_v3_kvm_info);
 }
 
@@ -1455,6 +1456,7 @@ static void __init gic_acpi_setup_kvm_info(void)
                vcpu->end = vcpu->start + ACPI_GICV2_VCPU_MEM_SIZE - 1;
        }
 
+       gic_v3_kvm_info.has_v4 = gic_data.rdists.has_vlpis;
        gic_set_kvm_info(&gic_v3_kvm_info);
 }
 
diff --git a/include/linux/irqchip/arm-gic-common.h 
b/include/linux/irqchip/arm-gic-common.h
index c647b0547bcd..0a83b4379f34 100644
--- a/include/linux/irqchip/arm-gic-common.h
+++ b/include/linux/irqchip/arm-gic-common.h
@@ -27,6 +27,8 @@ struct gic_kvm_info {
        unsigned int    maint_irq;
        /* Virtual control interface */
        struct resource vctrl;
+       /* vlpi support */
+       bool            has_v4;
 };
 
 const struct gic_kvm_info *gic_get_kvm_info(void);
-- 
2.11.0

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