debuggers.hg

view xen/include/asm-x86/fixmap.h @ 3545:6b76ae4b9ea7

bitkeeper revision 1.1159.212.30 (41f5268cMEdHLMEMs4o0SWqVEHZvuw)

Minor cleanup. Removed some duplicate MSRs, fixed some MSR names,
added a few new MSRs and MSR bit fields.
Signed-off-by: michael.fetterman@cl.cam.ac.uk
author mafetter@fleming.research
date Mon Jan 24 16:47:08 2005 +0000 (2005-01-24)
parents 321dda020e93
children d8ba911dce48 fec8b1778268
line source
1 /*
2 * fixmap.h: compile-time virtual memory allocation
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 1998 Ingo Molnar
9 * Modifications for Xen are copyright (c) 2002-2004, K A Fraser
10 */
12 #ifndef _ASM_FIXMAP_H
13 #define _ASM_FIXMAP_H
15 #include <xen/config.h>
16 #include <asm/acpi.h>
17 #include <asm/apicdef.h>
18 #include <asm/page.h>
20 /*
21 * Here we define all the compile-time 'special' virtual
22 * addresses. The point is to have a constant address at
23 * compile time, but to set the physical address only
24 * in the boot process. We allocate these special addresses
25 * from the end of virtual memory backwards.
26 */
27 enum fixed_addresses {
28 #ifdef CONFIG_X86_LOCAL_APIC
29 FIX_APIC_BASE, /* local (CPU) APIC -- required for SMP or not */
30 #endif
31 #ifdef CONFIG_X86_IO_APIC
32 FIX_IO_APIC_BASE_0,
33 FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
34 #endif
35 #ifdef CONFIG_ACPI_BOOT
36 FIX_ACPI_BEGIN,
37 FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1,
38 #endif
39 __end_of_fixed_addresses
40 };
42 #define FIXADDR_TOP (0xffffe000UL)
43 #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
44 #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
46 extern void __set_fixmap(enum fixed_addresses idx,
47 l1_pgentry_t entry);
49 #define set_fixmap(idx, phys) \
50 __set_fixmap(idx, mk_l1_pgentry(phys|PAGE_HYPERVISOR))
52 #define set_fixmap_nocache(idx, phys) \
53 __set_fixmap(idx, mk_l1_pgentry(phys|PAGE_HYPERVISOR_NOCACHE))
55 #define fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
57 #endif