cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

utils.c (1713B)

      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/loader.h"
     28
     29MemoryRegion *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}