numa: fixup parsed NumaNodeOptions earlier

numa 'mem' option with suffix or without one is possible
only on CLI/HMP. Instead of fixing up special suffix less
CLI case deep in parse_numa_node() do it earlier right
after option is parsed into NumaNodeOptions with OptVisistor
so that the rest of the code would use valid values in
NumaNodeOptions and won't have to reparse QemuOpts.

It will help to isolate CLI/HMP parts in parse_numa() and
split out parsed NumaNodeOptions processing into separate
function that could be reused by QMP handler where we have
only NumaNodeOptions and don't need any fixups.

While at it reuse qemu_strtosz_MiB() instead of manually
checking for suffixes.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1507801198-98182-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

numa.c

@@ -38,6 +38,7 @@
 #include "hw/mem/pc-dimm.h"
 #include "qemu/option.h"
 #include "qemu/config-file.h"
+#include "qemu/cutils.h"
 
 QemuOptsList qemu_numa_opts = {
     .name = "numa",
@@ -142,7 +143,7 @@ uint32_t numa_get_node(ram_addr_t addr, Error **errp)
 }
 
 static void parse_numa_node(MachineState *ms, NumaNodeOptions *node,
-                            QemuOpts *opts, Error **errp)
+                            Error **errp)
 {
     uint16_t nodenr;
     uint16List *cpus = NULL;
@@ -199,13 +200,7 @@ static void parse_numa_node(MachineState *ms, NumaNodeOptions *node,
     }
 
     if (node->has_mem) {
-        uint64_t mem_size = node->mem;
-        const char *mem_str = qemu_opt_get(opts, "mem");
-        /* Fix up legacy suffix-less format */
-        if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
-            mem_size <<= 20;
-        }
-        numa_info[nodenr].node_mem = mem_size;
+        numa_info[nodenr].node_mem = node->mem;
     }
     if (node->has_memdev) {
         Object *o;
@@ -275,9 +270,15 @@ static int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
         goto end;
     }
 
+    /* Fix up legacy suffix-less format */
+    if ((object->type == NUMA_OPTIONS_TYPE_NODE) && object->u.node.has_mem) {
+        const char *mem_str = qemu_opt_get(opts, "mem");
+        qemu_strtosz_MiB(mem_str, NULL, &object->u.node.mem);
+    }
+
     switch (object->type) {
     case NUMA_OPTIONS_TYPE_NODE:
-        parse_numa_node(ms, &object->u.node, opts, &err);
+        parse_numa_node(ms, &object->u.node, &err);
         if (err) {
             goto end;
         }