xref: /openbmc/hiomapd/vpnor/test/read_patch.cpp (revision 30bcf84c)
1 // SPDX-License-Identifier: Apache-2.0
2 // Copyright (C) 2018 IBM Corp.
3 
4 #include "config.h"
5 #include "common.h"
6 #include "vpnor/mboxd_pnor_partition_table.h"
7 
8 #include <assert.h>
9 
10 extern "C" {
11 #include "test/mbox.h"
12 #include "test/system.h"
13 }
14 
15 #include "vpnor/test/tmpd.hpp"
16 
17 static constexpr auto BLOCK_SIZE = 0x1000;
18 static constexpr auto ERASE_SIZE = BLOCK_SIZE;
19 static constexpr auto PART_SIZE = BLOCK_SIZE * 4;
20 static constexpr auto PATCH_SIZE = PART_SIZE / 2;
21 static constexpr auto N_WINDOWS = 2;
22 static constexpr auto WINDOW_SIZE = PART_SIZE * 8;
23 static constexpr auto MEM_SIZE = WINDOW_SIZE * N_WINDOWS;
24 static constexpr auto PNOR_SIZE = MEM_SIZE * 2;
25 
26 const std::string toc[] = {
27     "partition01=ONE,00001000,00005000,80,ECC,READONLY",
28 };
29 
30 static const uint8_t get_info[] = {0x02, 0x00, 0x02, 0x00, 0x00, 0x00,
31                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
32                                    0x00, 0x00, 0x00, 0x00};
33 
34 static const uint8_t create_read_window[] = {0x04, 0x01, 0x01, 0x00, 0x04, 0x00,
35                                              0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
36                                              0x00, 0x00, 0x00, 0x00};
37 
38 static const uint8_t response[] = {0x04, 0x01, 0xc0, 0xff, 0x04, 0x00, 0x01,
39                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
40 
41 int main()
42 {
43     namespace test = openpower::virtual_pnor::test;
44 
45     struct mbox_context *ctx;
46 
47     system_set_reserved_size(MEM_SIZE);
48     system_set_mtd_sizes(PNOR_SIZE, ERASE_SIZE);
49     ctx = mbox_create_test_context(N_WINDOWS, WINDOW_SIZE);
50     test::VpnorRoot root(ctx, toc, BLOCK_SIZE);
51 
52     // PATCH_SIZE is smaller than the size of the partition we defined. This
53     // test ensures that mboxd will behave correctly when we request an offset
54     // that is beyond the size of the backing file, but is in the set of valid
55     // offsets for the partition as defined by the ToC.
56     std::vector<uint8_t> patch(PATCH_SIZE, 0xff);
57     root.patch("ONE", patch.data(), patch.size());
58 
59     init_vpnor_from_paths(ctx);
60 
61     int rc = mbox_command_dispatch(ctx, get_info, sizeof(get_info));
62     assert(rc == 1);
63 
64     rc = mbox_command_dispatch(ctx, create_read_window,
65                                sizeof(create_read_window));
66     assert(rc == 1);
67 
68     rc = mbox_cmp(ctx, response, sizeof(response));
69     assert(rc == 0);
70 
71     return 0;
72 }
73