[PULL 09/38] hw/acpi/aml-build: Support cluster level in PPTT generation

[Peter Maydell <peter.maydell@linaro.org>]

From: Yanan Wang <wangyanan55@huawei.com>

Support CPU cluster topology level in generation of ACPI
Processor Properties Topology Table (PPTT).

Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20220107083232.16256-6-wangyanan55@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/acpi/aml-build.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 6aaedca2e56..bb2cad63b53 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -2001,6 +2001,7 @@ static void build_processor_hierarchy_node(GArray *tbl, uint32_t flags,
 void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms,
                 const char *oem_id, const char *oem_table_id)
 {
+    MachineClass *mc = MACHINE_GET_CLASS(ms);
     GQueue *list = g_queue_new();
     guint pptt_start = table_data->len;
     guint parent_offset;
@@ -2025,6 +2026,23 @@ void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms,
             0, socket, NULL, 0);
     }
 
+    if (mc->smp_props.clusters_supported) {
+        length = g_queue_get_length(list);
+        for (i = 0; i < length; i++) {
+            int cluster;
+
+            parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list));
+            for (cluster = 0; cluster < ms->smp.clusters; cluster++) {
+                g_queue_push_tail(list,
+                    GUINT_TO_POINTER(table_data->len - pptt_start));
+                build_processor_hierarchy_node(
+                    table_data,
+                    (0 << 0), /* not a physical package */
+                    parent_offset, cluster, NULL, 0);
+            }
+        }
+    }
+
     length = g_queue_get_length(list);
     for (i = 0; i < length; i++) {
         int core;
-- 
2.25.1