xref: /openbmc/qemu/hw/xtensa/xtensa_memory.c (revision f7160f32)
1 /*
2  * Copyright (c) 2017, Max Filippov, Open Source and Linux Lab.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *     * Redistributions of source code must retain the above copyright
8  *       notice, this list of conditions and the following disclaimer.
9  *     * Redistributions in binary form must reproduce the above copyright
10  *       notice, this list of conditions and the following disclaimer in the
11  *       documentation and/or other materials provided with the distribution.
12  *     * Neither the name of the Open Source and Linux Lab nor the
13  *       names of its contributors may be used to endorse or promote products
14  *       derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #include "qemu/osdep.h"
29 #include "qapi/error.h"
30 #include "cpu.h"
31 #include "exec/memory.h"
32 #include "qemu/error-report.h"
33 #include "xtensa_memory.h"
34 
35 void xtensa_create_memory_regions(const XtensaMemory *memory,
36                                   const char *name,
37                                   MemoryRegion *super)
38 {
39     unsigned i;
40     GString *num_name = g_string_new(NULL);
41 
42     for (i = 0; i < memory->num; ++i) {
43         MemoryRegion *m;
44 
45         g_string_printf(num_name, "%s%u", name, i);
46         m = g_new(MemoryRegion, 1);
47         memory_region_init_ram(m, NULL, num_name->str,
48                                memory->location[i].size, &error_fatal);
49         memory_region_add_subregion(super, memory->location[i].addr, m);
50     }
51     g_string_free(num_name, true);
52 }
53