xref: /openbmc/hiomapd/vpnor/test/read_patch.cpp (revision f4bc335b)
1 // SPDX-License-Identifier: Apache-2.0
2 // Copyright (C) 2018 IBM Corp.
3 
4 #include "config.h"
5 
6 extern "C" {
7 #include "common.h"
8 #include "test/mbox.h"
9 #include "test/system.h"
10 }
11 
12 #include "vpnor/test/tmpd.hpp"
13 
14 #include <cassert>
15 
16 #include "vpnor/backend.h"
17 
18 static constexpr auto BLOCK_SIZE = 0x1000;
19 static constexpr auto ERASE_SIZE = BLOCK_SIZE;
20 static constexpr auto PART_SIZE = BLOCK_SIZE * 4;
21 static constexpr auto PATCH_SIZE = PART_SIZE / 2;
22 static constexpr auto N_WINDOWS = 2;
23 static constexpr auto WINDOW_SIZE = PART_SIZE * 8;
24 static constexpr auto MEM_SIZE = WINDOW_SIZE * N_WINDOWS;
25 static constexpr auto PNOR_SIZE = MEM_SIZE * 2;
26 
27 const std::string toc[] = {
28     "partition01=ONE,00001000,00005000,80,ECC,READONLY",
29 };
30 
31 static const uint8_t get_info[] = {0x02, 0x00, 0x02, 0x00, 0x00, 0x00,
32                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
33                                    0x00, 0x00, 0x00, 0x00};
34 
35 static const uint8_t create_read_window[] = {0x04, 0x01, 0x01, 0x00, 0x04, 0x00,
36                                              0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
37                                              0x00, 0x00, 0x00, 0x00};
38 
39 static const uint8_t response[] = {0x04, 0x01, 0xc0, 0xff, 0x04, 0x00, 0x01,
40                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
41 
main()42 int main()
43 {
44     namespace test = openpower::virtual_pnor::test;
45 
46     struct mbox_context* ctx;
47 
48     system_set_reserved_size(MEM_SIZE);
49     system_set_mtd_sizes(PNOR_SIZE, ERASE_SIZE);
50     ctx = mbox_create_frontend_context(N_WINDOWS, WINDOW_SIZE);
51     test::VpnorRoot root(&ctx->backend, toc, BLOCK_SIZE);
52 
53     // PATCH_SIZE is smaller than the size of the partition we defined. This
54     // test ensures that mboxd will behave correctly when we request an offset
55     // that is beyond the size of the backing file, but is in the set of valid
56     // offsets for the partition as defined by the ToC.
57     std::vector<uint8_t> patch(PATCH_SIZE, 0xff);
58     root.patch("ONE", patch.data(), patch.size());
59 
60     int rc = mbox_command_dispatch(ctx, get_info, sizeof(get_info));
61     assert(rc == 1);
62 
63     rc = mbox_command_dispatch(ctx, create_read_window,
64                                sizeof(create_read_window));
65     assert(rc == 1);
66 
67     rc = mbox_cmp(ctx, response, sizeof(response));
68     assert(rc == 0);
69 
70     return 0;
71 }
72