| Isaku Yamahata | 67fe8d2 | 2008-10-17 11:17:51 +0900 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * arch/ia64/include/asm/xen/page.h |
| 3 | * |
| 4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> |
| 5 | * VA Linux Systems Japan K.K. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #ifndef _ASM_IA64_XEN_PAGE_H |
| 24 | #define _ASM_IA64_XEN_PAGE_H |
| 25 | |
| 26 | #define INVALID_P2M_ENTRY (~0UL) |
| 27 | |
| 28 | static inline unsigned long mfn_to_pfn(unsigned long mfn) |
| 29 | { |
| 30 | return mfn; |
| 31 | } |
| 32 | |
| 33 | static inline unsigned long pfn_to_mfn(unsigned long pfn) |
| 34 | { |
| 35 | return pfn; |
| 36 | } |
| 37 | |
| 38 | #define phys_to_machine_mapping_valid(_x) (1) |
| 39 | |
| 40 | static inline void *mfn_to_virt(unsigned long mfn) |
| 41 | { |
| 42 | return __va(mfn << PAGE_SHIFT); |
| 43 | } |
| 44 | |
| 45 | static inline unsigned long virt_to_mfn(void *virt) |
| 46 | { |
| 47 | return __pa(virt) >> PAGE_SHIFT; |
| 48 | } |
| 49 | |
| 50 | /* for tpmfront.c */ |
| 51 | static inline unsigned long virt_to_machine(void *virt) |
| 52 | { |
| 53 | return __pa(virt); |
| 54 | } |
| 55 | |
| 56 | static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn) |
| 57 | { |
| 58 | /* nothing */ |
| 59 | } |
| 60 | |
| 61 | #define pte_mfn(_x) pte_pfn(_x) |
| 62 | #define mfn_pte(_x, _y) __pte_ma(0) /* unmodified use */ |
| 63 | #define __pte_ma(_x) ((pte_t) {(_x)}) /* unmodified use */ |
| 64 | |
| 65 | #endif /* _ASM_IA64_XEN_PAGE_H */ |