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Diffstat (limited to 'hw/intc/arm_gicv3_common.c')
-rw-r--r--hw/intc/arm_gicv3_common.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
index 58ef65f589..223db16fec 100644
--- a/hw/intc/arm_gicv3_common.c
+++ b/hw/intc/arm_gicv3_common.c
@@ -345,6 +345,11 @@ static void arm_gicv3_common_realize(DeviceState *dev, Error **errp)
         return;
     }
 
+    if (s->lpi_enable && !s->dma) {
+        error_setg(errp, "Redist-ITS: Guest 'sysmem' reference link not set");
+        return;
+    }
+
     s->cpu = g_new0(GICv3CPUState, s->num_cpu);
 
     for (i = 0; i < s->num_cpu; i++) {
@@ -381,6 +386,10 @@ static void arm_gicv3_common_realize(DeviceState *dev, Error **errp)
             (1 << 24) |
             (i << 8) |
             (last << 4);
+
+        if (s->lpi_enable) {
+            s->cpu[i].gicr_typer |= GICR_TYPER_PLPIS;
+        }
     }
 }
 
@@ -426,6 +435,7 @@ static void arm_gicv3_common_reset(DeviceState *dev)
         memset(cs->gicr_ipriorityr, 0, sizeof(cs->gicr_ipriorityr));
 
         cs->hppi.prio = 0xff;
+        cs->hpplpi.prio = 0xff;
 
         /* State in the CPU interface must *not* be reset here, because it
          * is part of the CPU's reset domain, not the GIC device's.
@@ -494,9 +504,12 @@ static Property arm_gicv3_common_properties[] = {
     DEFINE_PROP_UINT32("num-cpu", GICv3State, num_cpu, 1),
     DEFINE_PROP_UINT32("num-irq", GICv3State, num_irq, 32),
     DEFINE_PROP_UINT32("revision", GICv3State, revision, 3),
+    DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0),
     DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn, 0),
     DEFINE_PROP_ARRAY("redist-region-count", GICv3State, nb_redist_regions,
                       redist_region_count, qdev_prop_uint32, uint32_t),
+    DEFINE_PROP_LINK("sysmem", GICv3State, dma, TYPE_MEMORY_REGION,
+                     MemoryRegion *),
     DEFINE_PROP_END_OF_LIST(),
 };