1843e1988Sjohnlev /* 2843e1988Sjohnlev * CDDL HEADER START 3843e1988Sjohnlev * 4843e1988Sjohnlev * The contents of this file are subject to the terms of the 5843e1988Sjohnlev * Common Development and Distribution License (the "License"). 6843e1988Sjohnlev * You may not use this file except in compliance with the License. 7843e1988Sjohnlev * 8843e1988Sjohnlev * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9843e1988Sjohnlev * or http://www.opensolaris.org/os/licensing. 10843e1988Sjohnlev * See the License for the specific language governing permissions 11843e1988Sjohnlev * and limitations under the License. 12843e1988Sjohnlev * 13843e1988Sjohnlev * When distributing Covered Code, include this CDDL HEADER in each 14843e1988Sjohnlev * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15843e1988Sjohnlev * If applicable, add the following below this CDDL HEADER, with the 16843e1988Sjohnlev * fields enclosed by brackets "[]" replaced with your own identifying 17843e1988Sjohnlev * information: Portions Copyright [yyyy] [name of copyright owner] 18843e1988Sjohnlev * 19843e1988Sjohnlev * CDDL HEADER END 20843e1988Sjohnlev */ 21843e1988Sjohnlev /* 22*349b53ddSStuart Maybee * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23843e1988Sjohnlev * Use is subject to license terms. 24843e1988Sjohnlev */ 25843e1988Sjohnlev 26843e1988Sjohnlev #ifndef _SYS_XEN_MMU_H 27843e1988Sjohnlev #define _SYS_XEN_MMU_H 28843e1988Sjohnlev 29843e1988Sjohnlev #ifdef __cplusplus 30843e1988Sjohnlev extern "C" { 31843e1988Sjohnlev #endif 32843e1988Sjohnlev 33843e1988Sjohnlev /* 34843e1988Sjohnlev * Platform-dependent MMU routines and types for the hypervisor. 35843e1988Sjohnlev * 36843e1988Sjohnlev * WARNING: this header file is used by both dboot and i86pc, so don't go using 37843e1988Sjohnlev * normal kernel headers. 38843e1988Sjohnlev */ 39843e1988Sjohnlev 40843e1988Sjohnlev #if (defined(_BOOT) && defined(_BOOT_TARGET_amd64)) || \ 41843e1988Sjohnlev (!defined(_BOOT) && defined(__amd64)) 42843e1988Sjohnlev #define __target_amd64 43843e1988Sjohnlev #endif 44843e1988Sjohnlev 45*349b53ddSStuart Maybee typedef uint64_t maddr_t; 46*349b53ddSStuart Maybee #define mfn_to_ma(mfn) ((maddr_t)(mfn) << MMU_PAGESHIFT) 47*349b53ddSStuart Maybee 48*349b53ddSStuart Maybee #ifdef __xpv 49*349b53ddSStuart Maybee 50843e1988Sjohnlev #ifdef __target_amd64 51843e1988Sjohnlev 52843e1988Sjohnlev #define IN_HYPERVISOR_VA(va) \ 53843e1988Sjohnlev ((va) >= HYPERVISOR_VIRT_START && (va) < HYPERVISOR_VIRT_END) 54843e1988Sjohnlev 55*349b53ddSStuart Maybee #else /* __target_amd64 */ 56843e1988Sjohnlev 57843e1988Sjohnlev #define IN_HYPERVISOR_VA(va) ((va) >= xen_virt_start) 58843e1988Sjohnlev 59843e1988Sjohnlev /* 60843e1988Sjohnlev * Do this to help catch any uses. 61843e1988Sjohnlev */ 62843e1988Sjohnlev #undef HYPERVISOR_VIRT_START 63843e1988Sjohnlev #undef machine_to_phys_mapping 64843e1988Sjohnlev 65*349b53ddSStuart Maybee #endif /* __target_amd64 */ 66843e1988Sjohnlev 67843e1988Sjohnlev #undef __target_amd64 68843e1988Sjohnlev 69843e1988Sjohnlev paddr_t ma_to_pa(maddr_t); 70843e1988Sjohnlev maddr_t pa_to_ma(paddr_t); 71*349b53ddSStuart Maybee #endif /* __xpv */ 72843e1988Sjohnlev 73843e1988Sjohnlev extern uintptr_t xen_virt_start; 74843e1988Sjohnlev extern pfn_t *mfn_to_pfn_mapping; 75843e1988Sjohnlev 76843e1988Sjohnlev #ifndef _BOOT 77843e1988Sjohnlev 78843e1988Sjohnlev /* 79843e1988Sjohnlev * On the hypervisor we need: 80843e1988Sjohnlev * - a way to map a machine address (ie, not pseudo-physical). 81843e1988Sjohnlev * - to relocate initial hypervisor data structures into kernel VA range. 82843e1988Sjohnlev * - a way to translate between physical addresses and machine addresses. 83843e1988Sjohnlev * - a way to change the machine address behind a physical address. 84843e1988Sjohnlev */ 85843e1988Sjohnlev typedef ulong_t mfn_t; 86843e1988Sjohnlev extern mfn_t *mfn_list; 87843e1988Sjohnlev extern mfn_t *mfn_list_pages; 88843e1988Sjohnlev extern mfn_t *mfn_list_pages_page; 89843e1988Sjohnlev extern ulong_t mfn_count; 90843e1988Sjohnlev extern mfn_t cached_max_mfn; 91843e1988Sjohnlev 92843e1988Sjohnlev /* 93843e1988Sjohnlev * locks for mfn_list[] and machine_to_phys_mapping[] when migration / suspend 94843e1988Sjohnlev * events happen 95843e1988Sjohnlev */ 96843e1988Sjohnlev extern void xen_block_migrate(void); 97843e1988Sjohnlev extern void xen_allow_migrate(void); 98843e1988Sjohnlev extern void xen_start_migrate(void); 99843e1988Sjohnlev extern void xen_end_migrate(void); 100843e1988Sjohnlev 101843e1988Sjohnlev /* 102843e1988Sjohnlev * Conversion between machine (hardware) addresses and pseudo-physical 103843e1988Sjohnlev * addresses. 104843e1988Sjohnlev */ 105*349b53ddSStuart Maybee #ifdef __xpv 106843e1988Sjohnlev pfn_t mfn_to_pfn(mfn_t); 107843e1988Sjohnlev mfn_t pfn_to_mfn(pfn_t); 108*349b53ddSStuart Maybee #endif 109843e1988Sjohnlev 110843e1988Sjohnlev struct page; 111843e1988Sjohnlev 112843e1988Sjohnlev void xen_relocate_start_info(void); 113843e1988Sjohnlev 114843e1988Sjohnlev /* 115843e1988Sjohnlev * interfaces to create/destroy pfn_t values for devices or foreign memory 116843e1988Sjohnlev * 117843e1988Sjohnlev * xen_assign_pfn() creates (or looks up) a local pfn value to use for things 118843e1988Sjohnlev * like a foreign domain memory mfn or a device mfn. 119843e1988Sjohnlev * 120843e1988Sjohnlev * xen_release_pfn() destroys the association between a pfn and foreign mfn. 121843e1988Sjohnlev */ 122843e1988Sjohnlev pfn_t xen_assign_pfn(mfn_t mfn); 123843e1988Sjohnlev void xen_release_pfn(pfn_t); 124843e1988Sjohnlev uint_t pfn_is_foreign(pfn_t); 125843e1988Sjohnlev void reassign_pfn(pfn_t pfn, mfn_t mfn); 126843e1988Sjohnlev 127843e1988Sjohnlev #define MFN_INVALID (-(mfn_t)1) 128843e1988Sjohnlev 129843e1988Sjohnlev #endif /* !_BOOT */ 130843e1988Sjohnlev 131843e1988Sjohnlev #ifdef __cplusplus 132843e1988Sjohnlev } 133843e1988Sjohnlev #endif 134843e1988Sjohnlev 135843e1988Sjohnlev #endif /* _SYS_XEN_MMU_H */ 136