https://nick-black.com/dankwiki/index.php?action=history&feed=atom&title=Microcode 2026-07-05T23:49:31Z Revision history for this page on the wiki MediaWiki 1.46.0 https://nick-black.com/dankwiki/index.php?title=Microcode&diff=5925&oldid=prev 2019-03-17T03:06:09Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw-interface=""> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 03:06, 17 March 2019</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l23">Line 23:</td> <td colspan="2" class="diff-lineno">Line 23:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/nowiki&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/nowiki&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The applicable microcode is still revision 0xb00002e from 2018-04-19, which I&#039;m already running, so there&#039;s no need to reboot.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The applicable microcode is still revision 0xb00002e from 2018-04-19, which I&#039;m already running, so there&#039;s no need to reboot.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">==AMD64 microcode==</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">On Debian, the [https://packages.debian.org/sid/amd64-microcode amd64-microcode] package provides firmware for AMD64 processors.</ins></div></td></tr> </table>

Dank https://nick-black.com/dankwiki/index.php?title=Microcode&diff=5924&oldid=prev 2019-03-17T03:04:55Z

<p>Created page with &quot;Processors and devices often have some kind of firmware/microcode blob that needs be uploaded when they start. Oftentimes, these carry important security and functionality fix...&quot;</p> <p><b>New page</b></p><div>Processors and devices often have some kind of firmware/microcode blob that needs be uploaded when they start. Oftentimes, these carry important security and functionality fixes. As usual, Arch has a [https://wiki.archlinux.org/index.php/microcode good page].<br /> <br /> ==Intel x86 microcode==<br /> On Debian, [https://packages.debian.org/sid/iucode-tool iucode-tool] manipulates microcode packages, and (from non-free) [https://packages.debian.org/sid/intel-microcode intel-microcode] provides the actual firmware blobs for packaging into an initramfs.<br /> <br /> On my [[Schwarzgerät|Intel 6950X]], using the 3.20180807a.2 version of intel-microcode, we see:<br /> &lt;nowiki&gt;<br /> [schwarzgerat](0) $ dmesg | grep microcode<br /> [ 0.000000] microcode: microcode updated early to revision 0xb00002e, date = 2018-04-19<br /> [ 3.116927] microcode: sig=0x406f1, pf=0x4, revision=0xb00002e<br /> [ 3.118406] microcode: Microcode Update Driver: v2.2.<br /> [schwarzgerat](0) $ sudo iucode_tool -S -L<br /> iucode_tool: system has processor(s) with signature 0x000406f1<br /> [schwarzgerat](0) $ grep microcode /proc/cpuinfo <br /> microcode : 0xb00002e (20 times)<br /> [schwarzgerat](0) $ <br /> &lt;/nowiki&gt;<br /> Version 3.20190312.1 came out. Let&#039;s look for signature 0x000406f1 (from iucode-tool output above) among the firmwares:<br /> &lt;nowiki&gt;<br /> [schwarzgerat](0) $ iucode-tool -L /lib/firmware/intel-ucode/0* | grep 406f1<br /> 037/001: sig 0x000406f1, pf_mask 0xef, 2018-04-19, rev 0xb00002e, size 28672<br /> [schwarzgerat](0) $ <br /> &lt;/nowiki&gt;<br /> The applicable microcode is still revision 0xb00002e from 2018-04-19, which I&#039;m already running, so there&#039;s no need to reboot.</div>

Dank