xnu-7195.101.1.tar.gz

[apple/xnu.git] / osfmk / i386 / i386_lowmem.h

diff --git a/osfmk/i386/i386_lowmem.h b/osfmk/i386/i386_lowmem.h
index ffbb00b578724ce410008cd0e522770b74c9d47c..eec9ff6406b1673a2db3b6896f0cbc8a87ed458b 100644 (file)
--- a/osfmk/i386/i386_lowmem.h
+++ b/osfmk/i386/i386_lowmem.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * 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
  * 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


@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 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,
  * 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,


@@ -22,7 +22,7 @@
  * 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.
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 


@@ -32,10 +32,17 @@
 
 #ifdef __APPLE_API_PRIVATE
 
 
 #ifdef __APPLE_API_PRIVATE
 

-#define I386_LOWMEM_RESERVED       0x18
+/*
+ * The kernel better be statically linked at VM_MIN_KERNEL_ADDRESS + 0x100000
+ */
+#define I386_KERNEL_IMAGE_BASE_PAGE     0x100

 
 

-#define I386_HIB_PAGETABLE         0x13
-#define I386_HIB_PAGETABLE_COUNT    5
+/* For K64, only 3 pages are reserved
+ * - physical page zero, a gap page, and then real-mode-bootstrap/lowGlo.
+ * Note that the kernel virtual address KERNEL_BASE+0x2000 is re-mapped
+ * to the low globals and that physical page, 0x2000, is used by the bootstrap.
+ */
+#define I386_LOWMEM_RESERVED            3

 
 #endif /* __APPLE_API_PRIVATE */
 
 
 #endif /* __APPLE_API_PRIVATE */