1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>skiboot-5.10-rc3 — skiboot 124d199
documentation</title>
<link rel="stylesheet" href="../_static/classic.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="../_static/language_data.js"></script>
<link rel="index" title="Index" href="../genindex.html" />
<link rel="search" title="Search" href="../search.html" />
<link rel="next" title="skiboot-5.10-rc4" href="skiboot-5.10-rc4.html" />
<link rel="prev" title="skiboot-5.10-rc2" href="skiboot-5.10-rc2.html" />
</head><body>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="skiboot-5.10-rc4.html" title="skiboot-5.10-rc4"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="skiboot-5.10-rc2.html" title="skiboot-5.10-rc2"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../index.html">skiboot 124d199
documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="index.html" accesskey="U">Release Notes</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<div class="section" id="skiboot-5-10-rc3">
<span id="id1"></span><h1>skiboot-5.10-rc3<a class="headerlink" href="#skiboot-5-10-rc3" title="Permalink to this headline">¶</a></h1>
<p>skiboot v5.10-rc3 was released on Thursday February 15th 2018. It is the third
release candidate of skiboot 5.10, which will become the new stable release
of skiboot following the 5.9 release, first released October 31st 2017.</p>
<p>skiboot v5.10-rc3 contains all bug fixes as of <a class="reference internal" href="skiboot-5.9.8.html#skiboot-5-9-8"><span class="std std-ref">skiboot-5.9.8</span></a>
and <a class="reference internal" href="skiboot-5.4.9.html#skiboot-5-4-9"><span class="std std-ref">skiboot-5.4.9</span></a> (the currently maintained stable releases). There
may be more 5.9.x stable releases, it will depend on demand.</p>
<p>For how the skiboot stable releases work, see <a class="reference internal" href="../process/stable-skiboot-rules.html#stable-rules"><span class="std std-ref">Skiboot stable tree rules and releases</span></a> for details.</p>
<p>The current plan is to cut the final 5.10 in February, with skiboot 5.10
being for all POWER8 and POWER9 platforms in op-build v1.21.
This release will be targeted to early POWER9 systems.</p>
<p>Over skiboot-5.10-rc2, we have the following changes:</p>
<ul>
<li><p class="first">vas: Disable VAS/NX-842 on some P9 revisions</p>
<p>VAS/NX-842 are not functional on some P9 revisions, so disable them
in hardware and skip creating their device tree nodes.</p>
<p>Since the intent is to prevent OS from configuring VAS/NX, we remove
only the platform device nodes but leave the VAS/NX DT nodes under
xscom (i.e we don’t skip add_vas_node() in hdata/spira.c)</p>
</li>
<li><p class="first">phb4: Only escalate freezes on MMIO load where necessary</p>
<p>In order to work around a hardware issue, MMIO load freezes were
escalated to fences on every chip. Now that hardware no longer requires
this, restrict escalation to the chips that actually need it.</p>
</li>
<li><p class="first">pflash: Fix makefile dependency issue</p>
</li>
<li><p class="first">DT: Add “version” property under ibm, firmware-versions node</p>
<p>First line of VERSION section in PNOR contains firmware version.
Use that to add “version” property under firmware versions dt node.</p>
<p>Sample output:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">root@xxx2:/proc/device-tree/ibm,firmware-versions#</span> lsprop
<span class="go">version "witherspoon-ibm-OP9_v1.19_1.94"</span>
</pre></div>
</div>
</li>
<li><p class="first">npu2: Disable TVT range check when in bypass mode</p>
<p>On POWER9 the GPUs need to be able to access the MMIO memory space. Therefore
the TVT range check needs to include the MMIO address space. As any possible
range check would cover all of memory anyway this patch just disables the TVT
range check all together when bypassing the TCE tables.</p>
</li>
<li><p class="first">hw/npu2: support creset of npu2 devices</p>
<p>creset calls in the hw procedure that resets the PHY, we don’t
take them out of reset, just put them in reset.</p>
<p>this fixes a kexec issue.</p>
</li>
<li><p class="first">ATTN: Enable flush instruction cache bit in HID register</p>
<p>In P9, we have to enable “flush the instruction cache” bit along with
“attn instruction support” bit to trigger attention.</p>
</li>
<li><p class="first">capi: Enable channel tag streaming for PHB in CAPP mode</p>
<p>We re-enable channel tag streaming for PHB in CAPP mode as without it
PEC was waiting for cresp for each DMA write command before sending a
new DMA write command on the Powerbus. This resulted in much lower DMA
write performance than expected.</p>
<p>The patch updates enable_capi_mode() to remove the masking of
channel_streaming_en bit in PBCQ Hardware Configuration Register. Also
does some re-factoring of the code that updates this register to use
xscom_write_mask instead of xscom_read followed by a xscom_write.</p>
</li>
<li><p class="first">core/device.c: Fix dt_find_compatible_node</p>
<p>dt_find_compatible_node() and dt_find_compatible_node_on_chip() are used to
find device nodes under a parent/root node with a given compatible
property.</p>
<p>dt_next(root, prev) is used to walk the child nodes of the given parent and
takes two arguments - root contains the parent node to walk whilst prev
contains the previous child to search from so that it can be used as an
iterator over all children nodes.</p>
<p>The first iteration of dt_find_compatible_node(root, prev) calls
dt_next(root, root) which is not a well defined operation as prev is
assumed to be child of the root node. The result is that when a node
contains no children it will start returning the parent nodes siblings
until it hits the top of the tree at which point a NULL derefence is
attempted when looking for the root nodes parent.</p>
<p>Dereferencing NULL can result in undesirable data exceptions during system
boot and untimely non-hilarious system crashes. dt_next() should not be
called with prev == root. Instead we add a check to dt_next() such that
passing prev = NULL will cause it to start iterating from the first child
node (if any).</p>
</li>
<li><p class="first">stb: Put correct label (for skiboot) into container</p>
<p>Hostboot will expect the label field of the stb header to contain
“PAYLOAD” for skiboot or it will fail to load and run skiboot.</p>
<p>The failure looks something like this:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="mf">53.40896</span><span class="o">|</span><span class="n">ISTEP</span> <span class="mf">20.</span> <span class="mi">1</span> <span class="o">-</span> <span class="n">host_load_payload</span>
<span class="mf">53.65840</span><span class="o">|</span><span class="n">secure</span><span class="o">|</span><span class="n">Secureboot</span> <span class="n">Failure</span> <span class="n">plid</span> <span class="o">=</span> <span class="mh">0x90000755</span><span class="p">,</span> <span class="n">rc</span> <span class="o">=</span> <span class="mh">0x1E07</span>
<span class="mf">53.65881</span><span class="o">|</span><span class="n">System</span> <span class="n">shutting</span> <span class="n">down</span> <span class="k">with</span> <span class="n">error</span> <span class="n">status</span> <span class="mh">0x1E07</span>
<span class="mf">53.67547</span><span class="o">|================================================</span>
<span class="mf">53.67954</span><span class="o">|</span><span class="n">Error</span> <span class="n">reported</span> <span class="n">by</span> <span class="n">secure</span> <span class="p">(</span><span class="mh">0x1E00</span><span class="p">)</span> <span class="n">PLID</span> <span class="mh">0x90000755</span>
<span class="mf">53.67560</span><span class="o">|</span> <span class="n">Container</span><span class="s1">'s component ID does not match expected component ID</span>
<span class="mf">53.67561</span><span class="o">|</span> <span class="n">ModuleId</span> <span class="mh">0x09</span> <span class="n">SECUREBOOT</span><span class="p">::</span><span class="n">MOD_SECURE_VERIFY_COMPONENT</span>
<span class="mf">53.67845</span><span class="o">|</span> <span class="n">ReasonCode</span> <span class="mh">0x1e07</span> <span class="n">SECUREBOOT</span><span class="p">::</span><span class="n">RC_ROM_VERIFY</span>
<span class="mf">53.67998</span><span class="o">|</span> <span class="n">UserData1</span> <span class="p">:</span> <span class="mh">0x0000000000000000</span>
<span class="mf">53.67999</span><span class="o">|</span> <span class="n">UserData2</span> <span class="p">:</span> <span class="mh">0x0000000000000000</span>
<span class="mf">53.67999</span><span class="o">|------------------------------------------------</span>
<span class="mf">53.68000</span><span class="o">|</span> <span class="n">Callout</span> <span class="nb">type</span> <span class="p">:</span> <span class="n">Procedure</span> <span class="n">Callout</span>
<span class="mf">53.68000</span><span class="o">|</span> <span class="n">Procedure</span> <span class="p">:</span> <span class="n">EPUB_PRC_HB_CODE</span>
<span class="mf">53.68001</span><span class="o">|</span> <span class="n">Priority</span> <span class="p">:</span> <span class="n">SRCI_PRIORITY_HIGH</span>
<span class="mf">53.68001</span><span class="o">|------------------------------------------------</span>
<span class="mf">53.68002</span><span class="o">|</span> <span class="n">Callout</span> <span class="nb">type</span> <span class="p">:</span> <span class="n">Procedure</span> <span class="n">Callout</span>
<span class="mf">53.68003</span><span class="o">|</span> <span class="n">Procedure</span> <span class="p">:</span> <span class="n">EPUB_PRC_FW_VERIFICATION_ERR</span>
<span class="mf">53.68003</span><span class="o">|</span> <span class="n">Priority</span> <span class="p">:</span> <span class="n">SRCI_PRIORITY_HIGH</span>
<span class="mf">53.68004</span><span class="o">|------------------------------------------------</span>
</pre></div>
</div>
</li>
<li><p class="first">hw/occ: Fix fast-reboot crash in P8 platforms.</p>
<p>commit 85a1de35cbe4 (“fast-boot: occ: Re-parse the pstate table during fast-boot” )
breaks the fast-reboot on P8 platforms while reiniting the OCC pstates. On P8
platforms OPAL adds additional two properties #address-cells and #size-cells
under ibm,opal/power-mgmt/ DT node. While in fast-reboot same properties adding
back to the same node results in Duplicate properties and hence fast-reboot fails
with below traces.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>[ 541.410373292,5] OCC: All Chip Rdy after 0 ms
[ 541.410488745,3] Duplicate property "#address-cells" in node /ibm,opal/power-mgt
[ 541.410694290,0] Aborting!
CPU 0058 Backtrace:
S: 0000000031d639d0 R: 000000003001367c .backtrace+0x48
S: 0000000031d63a60 R: 000000003001a03c ._abort+0x4c
S: 0000000031d63ae0 R: 00000000300267d8 .new_property+0xd8
S: 0000000031d63b70 R: 0000000030026a28 .__dt_add_property_cells+0x30
S: 0000000031d63c10 R: 000000003003ea3c .occ_pstates_init+0x984
S: 0000000031d63d90 R: 00000000300142d8 .load_and_boot_kernel+0x86c
S: 0000000031d63e70 R: 000000003002586c .fast_reboot_entry+0x358
S: 0000000031d63f00 R: 00000000300029f4 fast_reset_entry+0x2c
</pre></div>
</div>
<p>This patch fixes this issue by removing these two properties on P8 while doing
OCC pstates re-init in fast-reboot code path.</p>
</li>
</ul>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<h4>Previous topic</h4>
<p class="topless"><a href="skiboot-5.10-rc2.html"
title="previous chapter">skiboot-5.10-rc2</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="skiboot-5.10-rc4.html"
title="next chapter">skiboot-5.10-rc4</a></p>
<div role="note" aria-label="source link">
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../_sources/release-notes/skiboot-5.10-rc3.rst.txt"
rel="nofollow">Show Source</a></li>
</ul>
</div>
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="skiboot-5.10-rc4.html" title="skiboot-5.10-rc4"
>next</a> |</li>
<li class="right" >
<a href="skiboot-5.10-rc2.html" title="skiboot-5.10-rc2"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../index.html">skiboot 124d199
documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="index.html" >Release Notes</a> »</li>
</ul>
</div>
<div class="footer" role="contentinfo">
© Copyright 2016-2017, IBM, others.
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.5.
</div>
</body>
</html>
|
