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diff --git a/sys/arm64/arm64/gic_v3.c b/sys/arm64/arm64/gic_v3.c
--- a/sys/arm64/arm64/gic_v3.c
+++ b/sys/arm64/arm64/gic_v3.c
@@ -494,6 +494,10 @@
case GICV3_IVAR_REDIST:
*result = (uintptr_t)&sc->gic_redists.pcpu[PCPU_GET(cpuid)];
return (0);
+ case GICV3_IVAR_SUPPORT_LPIS:
+ *result =
+ (gic_d_read(sc, 4, GICD_TYPER) & GICD_TYPER_LPIS) != 0;
+ return (0);
case GIC_IVAR_HW_REV:
KASSERT(
GICR_PIDR2_ARCH(sc->gic_pidr2) == GICR_PIDR2_ARCH_GICv3 ||
diff --git a/sys/arm64/arm64/gic_v3_var.h b/sys/arm64/arm64/gic_v3_var.h
--- a/sys/arm64/arm64/gic_v3_var.h
+++ b/sys/arm64/arm64/gic_v3_var.h
@@ -102,9 +102,11 @@
#define GICV3_IVAR_NIRQS 1000
/* 1001 was GICV3_IVAR_REDIST_VADDR */
#define GICV3_IVAR_REDIST 1002
+#define GICV3_IVAR_SUPPORT_LPIS 1003
__BUS_ACCESSOR(gicv3, nirqs, GICV3, NIRQS, u_int);
__BUS_ACCESSOR(gicv3, redist, GICV3, REDIST, void *);
+__BUS_ACCESSOR(gicv3, support_lpis, GICV3, SUPPORT_LPIS, bool);
/* Device methods */
int gic_v3_attach(device_t dev);
diff --git a/sys/arm64/arm64/gicv3_its.c b/sys/arm64/arm64/gicv3_its.c
--- a/sys/arm64/arm64/gicv3_its.c
+++ b/sys/arm64/arm64/gicv3_its.c
@@ -2208,6 +2208,9 @@
if (!ofw_bus_is_compatible(dev, "arm,gic-v3-its"))
return (ENXIO);
+ if (!gicv3_get_support_lpis(dev))
+ return (ENXIO);
+
device_set_desc(dev, "ARM GIC Interrupt Translation Service");
return (BUS_PROBE_DEFAULT);
}
@@ -2277,6 +2280,9 @@
if (gic_get_hw_rev(dev) < 3)
return (EINVAL);
+ if (!gicv3_get_support_lpis(dev))
+ return (ENXIO);
+
device_set_desc(dev, "ARM GIC Interrupt Translation Service");
return (BUS_PROBE_DEFAULT);
}

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