[Qemu-devel] [RFC PATCH v1 3/4] numa: Store boot memory address range in node_info

[Bharata B Rao <bharata@linux.vnet.ibm.com>]

Store memory address range information of boot memory  in address
range list of numa_info.

This helps to have a common NUMA node lookup by address function that
works for both boot time memory and hotplugged memory.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
---
 numa.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/numa.c b/numa.c
index 27ca743..d67b1fb 100644
--- a/numa.c
+++ b/numa.c
@@ -75,6 +75,26 @@ void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node)
     }
 }
 
+static void numa_set_mem_ranges(void)
+{
+    int i;
+    ram_addr_t mem_start, mem_end_prev;
+
+    /*
+     * Deduce start address of each node and use it to store
+     * the address range info in numa_info address range list
+     */
+    for (i = 0; i < nb_numa_nodes; i++) {
+        if (i) {
+            mem_start = mem_end_prev;
+        } else {
+            mem_start = 0;
+        }
+        mem_end_prev = mem_start + numa_info[i].node_mem;
+        numa_set_mem_node_id(mem_start, numa_info[i].node_mem, i);
+    }
+}
+
 static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp)
 {
     uint16_t nodenr;
@@ -300,6 +320,8 @@ void parse_numa_opts(MachineClass *mc)
             QLIST_INIT(&numa_info[i].addr);
         }
 
+        numa_set_mem_ranges();
+
         for (i = 0; i < nb_numa_nodes; i++) {
             if (!bitmap_empty(numa_info[i].node_cpu, MAX_CPUMASK_BITS)) {
                 break;
-- 
2.1.0