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| <td width="10%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">core</a> - flash-subpartition.c<span style="font-size: 80%;"> (source / <a href="flash-subpartition.c.func-c.html">functions</a>)</span></td> |
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| <td width="5%" class="headerCovTableHead">Coverage</td> |
| <td width="5%" class="headerCovTableHead" title="Covered + Uncovered code">Total</td> |
| <td width="5%" class="headerCovTableHead" title="Exercised code only">Hit</td> |
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| <td class="headerItem">Test:</td> |
| <td class="headerValue">skiboot.info</td> |
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| <td class="headerItem">Lines:</td> |
| <td class="headerCovTableEntryLo">69.6 %</td> |
| <td class="headerCovTableEntry">46</td> |
| <td class="headerCovTableEntry">32</td> |
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| <td class="headerItem">Test Date:</td> |
| <td class="headerValue">2025-06-27 16:54:26</td> |
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| <td class="headerItem">Functions:</td> |
| <td class="headerCovTableEntryHi">100.0 %</td> |
| <td class="headerCovTableEntry">1</td> |
| <td class="headerCovTableEntry">1</td> |
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| <td class="headerCovTableEntry">0</td> |
| <td class="headerCovTableEntry">0</td> |
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| <pre class="sourceHeading"> Branch data Line data Source code</pre> |
| <pre class="source"> |
| <span id="L1"><span class="lineNum"> 1</span> : : // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later</span> |
| <span id="L2"><span class="lineNum"> 2</span> : : /*</span> |
| <span id="L3"><span class="lineNum"> 3</span> : : * Parse flash sub-partitions</span> |
| <span id="L4"><span class="lineNum"> 4</span> : : *</span> |
| <span id="L5"><span class="lineNum"> 5</span> : : * Copyright 2013-2018 IBM Corp.</span> |
| <span id="L6"><span class="lineNum"> 6</span> : : */</span> |
| <span id="L7"><span class="lineNum"> 7</span> : : </span> |
| <span id="L8"><span class="lineNum"> 8</span> : : #include <skiboot.h></span> |
| <span id="L9"><span class="lineNum"> 9</span> : : #include <opal-api.h></span> |
| <span id="L10"><span class="lineNum"> 10</span> : : </span> |
| <span id="L11"><span class="lineNum"> 11</span> : : struct flash_hostboot_toc {</span> |
| <span id="L12"><span class="lineNum"> 12</span> : : be32 ec;</span> |
| <span id="L13"><span class="lineNum"> 13</span> : : be32 offset; /* From start of header. 4K aligned */</span> |
| <span id="L14"><span class="lineNum"> 14</span> : : be32 size;</span> |
| <span id="L15"><span class="lineNum"> 15</span> : : };</span> |
| <span id="L16"><span class="lineNum"> 16</span> : : #define FLASH_HOSTBOOT_TOC_MAX_ENTRIES ((FLASH_SUBPART_HEADER_SIZE - 8) \</span> |
| <span id="L17"><span class="lineNum"> 17</span> : : /sizeof(struct flash_hostboot_toc))</span> |
| <span id="L18"><span class="lineNum"> 18</span> : : </span> |
| <span id="L19"><span class="lineNum"> 19</span> : : struct flash_hostboot_header {</span> |
| <span id="L20"><span class="lineNum"> 20</span> : : char eyecatcher[4];</span> |
| <span id="L21"><span class="lineNum"> 21</span> : : be32 version;</span> |
| <span id="L22"><span class="lineNum"> 22</span> : : struct flash_hostboot_toc toc[FLASH_HOSTBOOT_TOC_MAX_ENTRIES];</span> |
| <span id="L23"><span class="lineNum"> 23</span> : : };</span> |
| <span id="L24"><span class="lineNum"> 24</span> : : </span> |
| <span id="L25"><span class="lineNum"> 25</span> :<span class="tlaGNC tlaBgGNC"> 5 : int flash_subpart_info(void *part_header, uint32_t header_len,</span></span> |
| <span id="L26"><span class="lineNum"> 26</span> : : uint32_t part_size, uint32_t *part_actualp,</span> |
| <span id="L27"><span class="lineNum"> 27</span> : : uint32_t subid, uint32_t *offset, uint32_t *size)</span> |
| <span id="L28"><span class="lineNum"> 28</span> : : {</span> |
| <span id="L29"><span class="lineNum"> 29</span> : : struct flash_hostboot_header *header;</span> |
| <span id="L30"><span class="lineNum"> 30</span> : : char eyecatcher[5];</span> |
| <span id="L31"><span class="lineNum"> 31</span> : : uint32_t i, ec, o, s;</span> |
| <span id="L32"><span class="lineNum"> 32</span> : : uint32_t part_actual;</span> |
| <span id="L33"><span class="lineNum"> 33</span> : : bool subpart_found;</span> |
| <span id="L34"><span class="lineNum"> 34</span> : : </span> |
| <span id="L35"><span class="lineNum"> 35</span> :<span class="tlaGNC"> 5 : if (!part_header || ( !offset && !size && !part_actualp)) {</span></span> |
| <span id="L36"><span class="lineNum"> 36</span> :<span class="tlaUNC tlaBgUNC"> 0 : prlog(PR_ERR, "FLASH: invalid parameters: ph %p of %p sz %p "</span></span> |
| <span id="L37"><span class="lineNum"> 37</span> : : "tsz %p\n", part_header, offset, size, part_actualp);</span> |
| <span id="L38"><span class="lineNum"> 38</span> :<span class="tlaUNC"> 0 : return OPAL_PARAMETER;</span></span> |
| <span id="L39"><span class="lineNum"> 39</span> : : }</span> |
| <span id="L40"><span class="lineNum"> 40</span> : : </span> |
| <span id="L41"><span class="lineNum"> 41</span> :<span class="tlaGNC tlaBgGNC"> 5 : if (header_len < FLASH_SUBPART_HEADER_SIZE) {</span></span> |
| <span id="L42"><span class="lineNum"> 42</span> :<span class="tlaUNC tlaBgUNC"> 0 : prlog(PR_ERR, "FLASH: subpartition header too small 0x%x\n",</span></span> |
| <span id="L43"><span class="lineNum"> 43</span> : : header_len);</span> |
| <span id="L44"><span class="lineNum"> 44</span> :<span class="tlaUNC"> 0 : return OPAL_PARAMETER;</span></span> |
| <span id="L45"><span class="lineNum"> 45</span> : : }</span> |
| <span id="L46"><span class="lineNum"> 46</span> : : </span> |
| <span id="L47"><span class="lineNum"> 47</span> :<span class="tlaGNC tlaBgGNC"> 5 : header = (struct flash_hostboot_header*) part_header;</span></span> |
| <span id="L48"><span class="lineNum"> 48</span> : : </span> |
| <span id="L49"><span class="lineNum"> 49</span> : : /* Perform sanity */</span> |
| <span id="L50"><span class="lineNum"> 50</span> :<span class="tlaGNC"> 5 : i = be32_to_cpu(header->version);</span></span> |
| <span id="L51"><span class="lineNum"> 51</span> :<span class="tlaGNC"> 5 : if (i != 1) {</span></span> |
| <span id="L52"><span class="lineNum"> 52</span> :<span class="tlaUNC tlaBgUNC"> 0 : prerror("FLASH: flash subpartition TOC version unknown %i\n", i);</span></span> |
| <span id="L53"><span class="lineNum"> 53</span> :<span class="tlaUNC"> 0 : return OPAL_RESOURCE;</span></span> |
| <span id="L54"><span class="lineNum"> 54</span> : : }</span> |
| <span id="L55"><span class="lineNum"> 55</span> : : </span> |
| <span id="L56"><span class="lineNum"> 56</span> : : /* NULL terminate eyecatcher */</span> |
| <span id="L57"><span class="lineNum"> 57</span> :<span class="tlaGNC tlaBgGNC"> 5 : strncpy(eyecatcher, header->eyecatcher, 4);</span></span> |
| <span id="L58"><span class="lineNum"> 58</span> :<span class="tlaGNC"> 5 : eyecatcher[4] = '\0';</span></span> |
| <span id="L59"><span class="lineNum"> 59</span> :<span class="tlaGNC"> 5 : prlog(PR_DEBUG, "FLASH: flash subpartition eyecatcher %s\n",</span></span> |
| <span id="L60"><span class="lineNum"> 60</span> : : eyecatcher);</span> |
| <span id="L61"><span class="lineNum"> 61</span> : : </span> |
| <span id="L62"><span class="lineNum"> 62</span> :<span class="tlaGNC"> 5 : subpart_found = false;</span></span> |
| <span id="L63"><span class="lineNum"> 63</span> :<span class="tlaGNC"> 5 : part_actual = 0;</span></span> |
| <span id="L64"><span class="lineNum"> 64</span> :<span class="tlaGNC"> 30 : for (i = 0; i < FLASH_HOSTBOOT_TOC_MAX_ENTRIES; i++) {</span></span> |
| <span id="L65"><span class="lineNum"> 65</span> : : </span> |
| <span id="L66"><span class="lineNum"> 66</span> :<span class="tlaGNC"> 30 : ec = be32_to_cpu(header->toc[i].ec);</span></span> |
| <span id="L67"><span class="lineNum"> 67</span> :<span class="tlaGNC"> 30 : o = be32_to_cpu(header->toc[i].offset);</span></span> |
| <span id="L68"><span class="lineNum"> 68</span> :<span class="tlaGNC"> 30 : s = be32_to_cpu(header->toc[i].size);</span></span> |
| <span id="L69"><span class="lineNum"> 69</span> : : </span> |
| <span id="L70"><span class="lineNum"> 70</span> : : /* Check for null terminating entry */</span> |
| <span id="L71"><span class="lineNum"> 71</span> :<span class="tlaGNC"> 30 : if (!ec && !o && !s)</span></span> |
| <span id="L72"><span class="lineNum"> 72</span> :<span class="tlaGNC"> 5 : break;</span></span> |
| <span id="L73"><span class="lineNum"> 73</span> : : </span> |
| <span id="L74"><span class="lineNum"> 74</span> : : /* Sanity check the offset and size. */</span> |
| <span id="L75"><span class="lineNum"> 75</span> :<span class="tlaGNC"> 25 : if (o + s > part_size) {</span></span> |
| <span id="L76"><span class="lineNum"> 76</span> :<span class="tlaUNC tlaBgUNC"> 0 : prerror("FLASH: flash subpartition too big: %i\n", i);</span></span> |
| <span id="L77"><span class="lineNum"> 77</span> :<span class="tlaUNC"> 0 : return OPAL_RESOURCE;</span></span> |
| <span id="L78"><span class="lineNum"> 78</span> : : }</span> |
| <span id="L79"><span class="lineNum"> 79</span> :<span class="tlaGNC tlaBgGNC"> 25 : if (!s) {</span></span> |
| <span id="L80"><span class="lineNum"> 80</span> :<span class="tlaUNC tlaBgUNC"> 0 : prerror("FLASH: flash subpartition zero size: %i\n", i);</span></span> |
| <span id="L81"><span class="lineNum"> 81</span> :<span class="tlaUNC"> 0 : return OPAL_RESOURCE;</span></span> |
| <span id="L82"><span class="lineNum"> 82</span> : : }</span> |
| <span id="L83"><span class="lineNum"> 83</span> :<span class="tlaGNC tlaBgGNC"> 25 : if (o < FLASH_SUBPART_HEADER_SIZE) {</span></span> |
| <span id="L84"><span class="lineNum"> 84</span> :<span class="tlaUNC tlaBgUNC"> 0 : prerror("FLASH: flash subpartition offset too small: "</span></span> |
| <span id="L85"><span class="lineNum"> 85</span> : : "%i\n", i);</span> |
| <span id="L86"><span class="lineNum"> 86</span> :<span class="tlaUNC"> 0 : return OPAL_RESOURCE;</span></span> |
| <span id="L87"><span class="lineNum"> 87</span> : : }</span> |
| <span id="L88"><span class="lineNum"> 88</span> : : /*</span> |
| <span id="L89"><span class="lineNum"> 89</span> : : * Subpartitions content are different, but multiple toc entries</span> |
| <span id="L90"><span class="lineNum"> 90</span> : : * may point to the same subpartition.</span> |
| <span id="L91"><span class="lineNum"> 91</span> : : */</span> |
| <span id="L92"><span class="lineNum"> 92</span> :<span class="tlaGNC tlaBgGNC"> 25 : if (ALIGN_UP(o + s, FLASH_SUBPART_HEADER_SIZE) > part_actual)</span></span> |
| <span id="L93"><span class="lineNum"> 93</span> :<span class="tlaGNC"> 5 : part_actual = ALIGN_UP(o + s, FLASH_SUBPART_HEADER_SIZE);</span></span> |
| <span id="L94"><span class="lineNum"> 94</span> : : </span> |
| <span id="L95"><span class="lineNum"> 95</span> :<span class="tlaGNC"> 25 : if (ec == subid) {</span></span> |
| <span id="L96"><span class="lineNum"> 96</span> :<span class="tlaGNC"> 5 : if (offset)</span></span> |
| <span id="L97"><span class="lineNum"> 97</span> :<span class="tlaGNC"> 5 : *offset += o;</span></span> |
| <span id="L98"><span class="lineNum"> 98</span> :<span class="tlaGNC"> 5 : if (size)</span></span> |
| <span id="L99"><span class="lineNum"> 99</span> :<span class="tlaGNC"> 5 : *size = s;</span></span> |
| <span id="L100"><span class="lineNum"> 100</span> :<span class="tlaGNC"> 5 : subpart_found = true;</span></span> |
| <span id="L101"><span class="lineNum"> 101</span> : : }</span> |
| <span id="L102"><span class="lineNum"> 102</span> : : }</span> |
| <span id="L103"><span class="lineNum"> 103</span> :<span class="tlaGNC"> 5 : if (!subpart_found && (offset || size)) {</span></span> |
| <span id="L104"><span class="lineNum"> 104</span> :<span class="tlaUNC tlaBgUNC"> 0 : prerror("FLASH: flash subpartition not found.\n");</span></span> |
| <span id="L105"><span class="lineNum"> 105</span> :<span class="tlaUNC"> 0 : return OPAL_RESOURCE;</span></span> |
| <span id="L106"><span class="lineNum"> 106</span> : : }</span> |
| <span id="L107"><span class="lineNum"> 107</span> :<span class="tlaGNC tlaBgGNC"> 5 : if (part_actualp)</span></span> |
| <span id="L108"><span class="lineNum"> 108</span> :<span class="tlaGNC"> 5 : *part_actualp = part_actual;</span></span> |
| <span id="L109"><span class="lineNum"> 109</span> :<span class="tlaGNC"> 5 : return OPAL_SUCCESS;</span></span> |
| <span id="L110"><span class="lineNum"> 110</span> : : }</span> |
| </pre> |
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