diff mbox series

[PULL,27/27] hw/arm/virt: fdt: generate distance-map when needed

Message ID 1496337035-30213-28-git-send-email-peter.maydell@linaro.org
State Accepted
Commit c7637c04be257968e6df30de961a6a23a0ac3dd8
Headers show
Series target-arm queue | expand

Commit Message

Peter Maydell June 1, 2017, 5:10 p.m. UTC 
From: Andrew Jones <drjones@redhat.com>


This is based on patch Shannon Zhao originally posted.

Cc: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>

Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>

Message-id: 20170529173751.3443-3-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

---
 hw/arm/virt.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

-- 
2.7.4
diff mbox series

Patch

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index c7c8159..4db2d42 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -219,6 +219,27 @@  static void create_fdt(VirtMachineState *vms)
                                 "clk24mhz");
     qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vms->clock_phandle);
 
+    if (have_numa_distance) {
+        int size = nb_numa_nodes * nb_numa_nodes * 3 * sizeof(uint32_t);
+        uint32_t *matrix = g_malloc0(size);
+        int idx, i, j;
+
+        for (i = 0; i < nb_numa_nodes; i++) {
+            for (j = 0; j < nb_numa_nodes; j++) {
+                idx = (i * nb_numa_nodes + j) * 3;
+                matrix[idx + 0] = cpu_to_be32(i);
+                matrix[idx + 1] = cpu_to_be32(j);
+                matrix[idx + 2] = cpu_to_be32(numa_info[i].distance[j]);
+            }
+        }
+
+        qemu_fdt_add_subnode(fdt, "/distance-map");
+        qemu_fdt_setprop_string(fdt, "/distance-map", "compatible",
+                                "numa-distance-map-v1");
+        qemu_fdt_setprop(fdt, "/distance-map", "distance-matrix",
+                         matrix, size);
+        g_free(matrix);
+    }
 }
 
 static void fdt_add_psci_node(const VirtMachineState *vms)