debuggers.hg
annotate xen/include/asm-x86/fixmap.h @ 3632:fec8b1778268
bitkeeper revision 1.1159.212.60 (41febc4bKKSkh9u-Zes9v2CmBuLZxA)
More bootstrap fixes for x86/64. Next thing to do is sort out the IDT and
get traps.c working; then we can get rid of a bunch of dummy labels from
end of boot/x86_64.S. We're also going to need some kind of entry.S before
we can safely enable interrupts. Also bear in mind that not all of physical
RAM may be mapped (only first 1GB) and no m2p table is yet allocated or
mapped. Plenty to be done!
More bootstrap fixes for x86/64. Next thing to do is sort out the IDT and
get traps.c working; then we can get rid of a bunch of dummy labels from
end of boot/x86_64.S. We're also going to need some kind of entry.S before
we can safely enable interrupts. Also bear in mind that not all of physical
RAM may be mapped (only first 1GB) and no m2p table is yet allocated or
mapped. Plenty to be done!
| author | kaf24@viper.(none) |
|---|---|
| date | Mon Jan 31 23:16:27 2005 +0000 (2005-01-31) |
| parents | 6b76ae4b9ea7 |
| children | bbe8541361dd |
| rev | line source |
|---|---|
| kaf24@1490 | 1 /* |
| kaf24@1490 | 2 * fixmap.h: compile-time virtual memory allocation |
| kaf24@1490 | 3 * |
| kaf24@1490 | 4 * This file is subject to the terms and conditions of the GNU General Public |
| kaf24@1490 | 5 * License. See the file "COPYING" in the main directory of this archive |
| kaf24@1490 | 6 * for more details. |
| kaf24@1490 | 7 * |
| kaf24@1490 | 8 * Copyright (C) 1998 Ingo Molnar |
| kaf24@1546 | 9 * Modifications for Xen are copyright (c) 2002-2004, K A Fraser |
| kaf24@1490 | 10 */ |
| kaf24@1490 | 11 |
| kaf24@1490 | 12 #ifndef _ASM_FIXMAP_H |
| kaf24@1490 | 13 #define _ASM_FIXMAP_H |
| kaf24@1490 | 14 |
| kaf24@1490 | 15 #include <xen/config.h> |
| kaf24@1490 | 16 #include <asm/acpi.h> |
| kaf24@1490 | 17 #include <asm/apicdef.h> |
| kaf24@1490 | 18 #include <asm/page.h> |
| kaf24@1490 | 19 |
| kaf24@1490 | 20 /* |
| kaf24@1490 | 21 * Here we define all the compile-time 'special' virtual |
| kaf24@1490 | 22 * addresses. The point is to have a constant address at |
| kaf24@1490 | 23 * compile time, but to set the physical address only |
| kaf24@1546 | 24 * in the boot process. We allocate these special addresses |
| kaf24@1546 | 25 * from the end of virtual memory backwards. |
| kaf24@1490 | 26 */ |
| kaf24@1490 | 27 enum fixed_addresses { |
| kaf24@1490 | 28 #ifdef CONFIG_X86_LOCAL_APIC |
| mafetter@3545 | 29 FIX_APIC_BASE, /* local (CPU) APIC -- required for SMP or not */ |
| kaf24@1490 | 30 #endif |
| kaf24@1490 | 31 #ifdef CONFIG_X86_IO_APIC |
| kaf24@1546 | 32 FIX_IO_APIC_BASE_0, |
| kaf24@1546 | 33 FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1, |
| kaf24@1490 | 34 #endif |
| kaf24@1490 | 35 #ifdef CONFIG_ACPI_BOOT |
| kaf24@1546 | 36 FIX_ACPI_BEGIN, |
| kaf24@1546 | 37 FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1, |
| kaf24@1490 | 38 #endif |
| kaf24@1546 | 39 __end_of_fixed_addresses |
| kaf24@1490 | 40 }; |
| kaf24@1490 | 41 |
| kaf24@3632 | 42 #define FIXADDR_TOP (IOREMAP_VIRT_END - PAGE_SIZE) |
| kaf24@1546 | 43 #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) |
| kaf24@1546 | 44 #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) |
| kaf24@1546 | 45 |
| kaf24@3632 | 46 extern void __set_fixmap( |
| kaf24@3632 | 47 enum fixed_addresses idx, unsigned long p, unsigned long flags); |
| kaf24@1490 | 48 |
| kaf24@1490 | 49 #define set_fixmap(idx, phys) \ |
| kaf24@3632 | 50 __set_fixmap(idx, phys, PAGE_HYPERVISOR) |
| kaf24@1490 | 51 |
| kaf24@1546 | 52 #define set_fixmap_nocache(idx, phys) \ |
| kaf24@3632 | 53 __set_fixmap(idx, phys, PAGE_HYPERVISOR_NOCACHE) |
| kaf24@1490 | 54 |
| kaf24@1546 | 55 #define fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) |
| kaf24@1490 | 56 |
| kaf24@1490 | 57 #endif |