| 1 | /* |
| 2 | * Utilities for generating ACPI tables and passing them to Guests |
| 3 | * |
| 4 | * Copyright (C) 2019 Intel Corporation |
| 5 | * Copyright (C) 2019 Red Hat Inc |
| 6 | * |
| 7 | * Author: Wei Yang <richardw.yang@linux.intel.com> |
| 8 | * Author: Michael S. Tsirkin <mst@redhat.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
| 22 | */ |
| 23 | |
| 24 | #include "qemu/osdep.h" |
| 25 | #include "hw/acpi/aml-build.h" |
| 26 | #include "hw/acpi/utils.h" |
| 27 | #include "hw/core/loader.h" |
| 28 | |
| 29 | MemoryRegion *acpi_add_rom_blob(FWCfgCallback update, void *opaque, |
| 30 | GArray *blob, const char *name) |
| 31 | { |
| 32 | uint64_t max_size; |
| 33 | |
| 34 | /* Reserve RAM space for tables: add another order of magnitude. */ |
| 35 | if (!strcmp(name, ACPI_BUILD_TABLE_FILE)) { |
| 36 | max_size = 0x200000; |
| 37 | } else if (!strcmp(name, ACPI_BUILD_LOADER_FILE)) { |
| 38 | max_size = 0x10000; |
| 39 | } else if (!strcmp(name, ACPI_BUILD_RSDP_FILE)) { |
| 40 | max_size = 0x1000; |
| 41 | } else { |
| 42 | g_assert_not_reached(); |
| 43 | } |
| 44 | g_assert(acpi_data_len(blob) <= max_size); |
| 45 | |
| 46 | return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1, |
| 47 | name, update, opaque, NULL, true); |
| 48 | } |