xref: /openbmc/hiomapd/vpnor/test/create_read_window_toc.cpp (revision 261f61a1747a9ebf092d4f426e891ff94ad33ffc)
1 // SPDX-License-Identifier: Apache-2.0
2 // Copyright (C) 2018 IBM Corp.
3 #include "config.h"
4 
5 #include "vpnor/pnor_partition_table.hpp"
6 
7 #include <sys/mman.h>
8 
9 #include <cassert>
10 #include <cstring>
11 
12 extern "C" {
13 #include "test/mbox.h"
14 #include "test/system.h"
15 }
16 
17 #include "vpnor/test/tmpd.hpp"
18 
19 static constexpr auto BLOCK_SIZE = 4 * 1024;
20 static constexpr auto PNOR_SIZE = 64 * 1024 * 1024;
21 static constexpr auto MEM_SIZE = BLOCK_SIZE * 2;
22 static constexpr auto ERASE_SIZE = BLOCK_SIZE;
23 static constexpr auto N_WINDOWS = 1;
24 static constexpr auto WINDOW_SIZE = BLOCK_SIZE;
25 static constexpr auto TOC_PART_SIZE = BLOCK_SIZE;
26 
27 const std::string toc[] = {
28     "partition00=part,00000000,00001000,80,READONLY",
29     "partition01=ONE,00001000,00002000,80,READWRITE",
30 };
31 
32 static const uint8_t get_info[] = {0x02, 0x00, 0x02, 0x00, 0x00, 0x00,
33                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
34                                    0x00, 0x00, 0x00, 0x00};
35 
36 /* Request access to the ToC base for one block */
37 static const uint8_t create_read_window[] = {0x04, 0x01, 0x00, 0x00, 0x01, 0x00,
38                                              0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
39                                              0x00, 0x00, 0x00, 0x00};
40 
41 /* Expect a response containing the ToC in one block */
42 static const uint8_t response[] = {
43     0x04, 0x01, 0xfe, 0xff, 0x01, 0x00, 0x00,
44     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
45 };
46 
47 int main()
48 {
49     namespace test = openpower::virtual_pnor::test;
50     namespace vpnor = openpower::virtual_pnor;
51 
52     struct mbox_context* ctx;
53     int rc;
54 
55     system_set_reserved_size(MEM_SIZE);
56     system_set_mtd_sizes(PNOR_SIZE, ERASE_SIZE);
57 
58     ctx = mbox_create_test_context(N_WINDOWS, WINDOW_SIZE);
59     test::VpnorRoot root(ctx, toc, BLOCK_SIZE);
60     vpnor::partition::Table table(ctx);
61 
62     /* Make sure the ToC exactly fits in the space allocated for it */
63     assert(table.capacity() == TOC_PART_SIZE);
64 
65     init_vpnor_from_paths(ctx);
66 
67     rc = mbox_command_dispatch(ctx, get_info, sizeof(get_info));
68     assert(rc == 1);
69 
70     rc = mbox_command_dispatch(ctx, create_read_window,
71                                sizeof(create_read_window));
72     assert(rc == 1);
73 
74     rc = mbox_cmp(ctx, response, sizeof(response));
75     assert(rc == 0);
76 
77     /* Ensure our partition table is present and as expected */
78     const pnor_partition_table& toc = table.getHostTable();
79     rc = memcmp(ctx->mem, &toc, table.size());
80     assert(rc == 0);
81 
82     return 0;
83 }
84