xnu-517.tar.gz

[apple/xnu.git] / osfmk / vm / vm_init.c

diff --git a/osfmk/vm/vm_init.c b/osfmk/vm/vm_init.c
index 0a729a2a8750f37fcbad162596d52a964f9dc899..26bd959e51ec1e8f0c7c4a2c687c7c40400a6b31 100644 (file)
--- a/osfmk/vm/vm_init.c
+++ b/osfmk/vm/vm_init.c
@@ -3,19 +3,22 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -100,7 +103,12 @@ vm_mem_bootstrap(void)
        kmem_init(start, end);
        pmap_init();
        
-       zsize = mem_size >> 2;                  /* Get target zone size as 1/4 of physical memory */
+       if (PE_parse_boot_arg("zsize", &zsize))
+               zsize = zsize * 1024 * 1024;
+       else {
+               zsize = sane_size >> 2;                         /* Get target zone size as 1/4 of physical memory */
+       }
+
        if(zsize < ZONE_MAP_MIN) zsize = ZONE_MAP_MIN;  /* Clamp to min */
        if(zsize > ZONE_MAP_MAX) zsize = ZONE_MAP_MAX;  /* Clamp to max */
        zone_init(zsize);                                               /* Allocate address space for zones */