From 0b2007d39dfd5be1f851a65c94300652884022f6 Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Mon, 12 Oct 2015 23:50:47 +0100 Subject: docs/hcl/c201.html: note about (lack of) CPU microcode --- docs/hcl/c201.html | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/docs/hcl/c201.html b/docs/hcl/c201.html index bc32e727..6c788fb6 100644 --- a/docs/hcl/c201.html +++ b/docs/hcl/c201.html @@ -51,6 +51,7 @@
  • Caution: Video acceleration requires a blob. Do not install it. Use software rendering.
  • Caution: WiFi acceleration requires a blob. Do not install it. Use a USB dongle.
  • EC firmware is free software!
    • +
  • No microcode!
  • Replace ChromeOS immediately!
  • Depthcharge payload
    • @@ -153,6 +154,22 @@ (if you do without the video/wifi blobs) be more free when using one of these laptops.

    + +
    +

    No microcode!

    +

    + Unlike x86 (e.g. Intel/AMD) CPUs, ARM CPUs do not use microcode, not even built in. + On the Intel/AMD based libreboot systems, there is still microcode in the CPU + (not considered problematic by the FSF, since it's part of the hardware), but we + exclude microcode updates, which are proprietary +

    +

    + On ARM CPUs, the instruction set is implemented in circuitry, without microcode. +

    +

    + Back to top of page. +

    +

    Replace ChromeOS immediately!

    -- cgit v1.2.3-70-g09d2