New API: set-smp, get-smp

These calls allow you to change the number of virtual CPUs assigned to
the appliance.

This also adds a --smp option to virt-rescue.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/guestfs.c b/src/guestfs.c
index 002418a4..f7ad9674 100644
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -144,6 +144,9 @@ guestfs_create (void)
    */
   g->msg_next_serial = 0x00123400;
 
+  /* Default is uniprocessor appliance. */
+  g->smp = 1;
+
   /* Link the handles onto a global list. */
   gl_lock_lock (handles_lock);
   g->next = handles;
@@ -814,6 +817,24 @@ guestfs__get_pgroup (guestfs_h *g)
   return g->pgroup;
 }
 
+int
+guestfs__set_smp (guestfs_h *g, int v)
+{
+  if (v >= 1) {
+    g->smp = v;
+    return 0;
+  } else {
+    error (g, "invalid smp parameter: %d", v);
+    return -1;
+  }
+}
+
+int
+guestfs__get_smp (guestfs_h *g)
+{
+  return g->smp;
+}
+
 /* Note the private data area is allocated lazily, since the vast
  * majority of callers will never use it.  This means g->pda is
  * likely to be NULL.