| 1 | /* |
| 2 | * Variable page size handling -- system specific part. |
| 3 | * |
| 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include "qemu/osdep.h" |
| 21 | #include "exec/page-vary.h" |
| 22 | #include "exec/tlb-flags.h" |
| 23 | #include "qemu/target-info-impl.h" |
| 24 | |
| 25 | QEMU_BUILD_BUG_ON(TLB_FLAGS_MASK & ((1u < TARGET_PAGE_BITS_MIN) - 1)); |
| 26 | |
| 27 | int migration_legacy_page_bits(void) |
| 28 | { |
| 29 | const TargetInfo *ti = target_info(); |
| 30 | |
| 31 | assert(ti->page_bits_init >= TARGET_PAGE_BITS_MIN); |
| 32 | return ti->page_bits_init; |
| 33 | } |