libxl: cleanup some misuse of 'cpumap' as parameter

in favour of the more generic 'bitmap', which is better
since these are generic libxl_bitmap_* functions.

Also fix a typo, and remove a stale (and wrong) comment.

No functional change intended.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

tools/libxl/libxl_dom.c

@@ -376,7 +376,7 @@ int libxl__build_pre(libxl__gc *gc, uint32_t domid,
     }
     if (info->nodemap.size)
         libxl_domain_set_nodeaffinity(ctx, domid, &info->nodemap);
-    /* As mentioned in libxl.h, vcpu_hard_array takes precedence */
+
     if (info->num_vcpu_hard_affinity || info->num_vcpu_soft_affinity) {
         libxl_bitmap *hard_affinity, *soft_affinity;
         int i, n_vcpus;

tools/libxl/libxl_utils.h

@@ -89,8 +89,8 @@ int libxl_bitmap_is_empty(const libxl_bitmap *bitmap);
 int libxl_bitmap_test(const libxl_bitmap *bitmap, int bit);
 void libxl_bitmap_set(libxl_bitmap *bitmap, int bit);
 void libxl_bitmap_reset(libxl_bitmap *bitmap, int bit);
-int libxl_bitmap_count_set(const libxl_bitmap *cpumap);
-char *libxl_bitmap_to_hex_string(libxl_ctx *ctx, const libxl_bitmap *cpumap);
+int libxl_bitmap_count_set(const libxl_bitmap *bitmap);
+char *libxl_bitmap_to_hex_string(libxl_ctx *ctx, const libxl_bitmap *bitmap);
 static inline void libxl_bitmap_set_any(libxl_bitmap *bitmap)
 {
     memset(bitmap->map, -1, bitmap->size);
@@ -145,7 +145,7 @@ int libxl_node_to_cpumap(libxl_ctx *ctx, int node,
                          libxl_bitmap *cpumap);
 /* Populate nodemap with the nodes of the cpus in cpumap */
 int libxl_cpumap_to_nodemap(libxl_ctx *ctx,
-                            const libxl_bitmap *cpuemap,
+                            const libxl_bitmap *cpumap,
                             libxl_bitmap *nodemap);
 
  static inline uint32_t libxl__sizekb_to_mb(uint32_t s) {