numa: Keep track of NUMA nodes present on the command-line

Based on "enable sparse node numbering" patch from Nishanth Aravamudan,
but without the code to actually support sparse node IDs. This just adds
the code to keep track of present/non-present nodes on the command-line,
without changing any behavior.

Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
[Rename max_numa_node to max_numa_nodeid -Eduardo]
[Initialize max_numa_nodeid to 0 -Eduardo]
[Use MAX() macro when setting max_numa_nodeid -Eduardo]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/vl.c b/vl.c
index a1686ef..41ddcd2 100644
--- a/vl.c
+++ b/vl.c
@@ -196,6 +196,7 @@ static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
     QTAILQ_HEAD_INITIALIZER(fw_boot_order);
 
 int nb_numa_nodes;
+int max_numa_nodeid;
 NodeInfo numa_info[MAX_NODES];
 
 uint8_t qemu_uuid[16];
@@ -2984,10 +2985,12 @@ int main(int argc, char **argv, char **envp)
 
     for (i = 0; i < MAX_NODES; i++) {
         numa_info[i].node_mem = 0;
+        numa_info[i].present = false;
         bitmap_zero(numa_info[i].node_cpu, MAX_CPUMASK_BITS);
     }
 
     nb_numa_nodes = 0;
+    max_numa_nodeid = 0;
     nb_nics = 0;
 
     bdrv_init_with_whitelist();