2014-10-29 15:51:07

by Christian Hesse

[permalink] [raw]
Subject: [PATCH 1/1] Documentation: image containing ucode needs to be uncompressed

While the regular initramfs is allowed to be compressed, the image
containing microcode is not.

Signed-off-by: Christian Hesse <[email protected]>
---
Documentation/x86/early-microcode.txt | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/x86/early-microcode.txt b/Documentation/x86/early-microcode.txt
index d62bea6..da6ded3 100644
--- a/Documentation/x86/early-microcode.txt
+++ b/Documentation/x86/early-microcode.txt
@@ -8,9 +8,10 @@ can fix CPU issues before they are observed during kernel boot time.
Microcode is stored in an initrd file. The microcode is read from the initrd
file and loaded to CPUs during boot time.

-The format of the combined initrd image is microcode in cpio format followed by
-the initrd image (maybe compressed). Kernel parses the combined initrd image
-during boot time. The microcode file in cpio name space is:
+The format of the combined initrd image is microcode in uncompressed
+cpio format followed by the initrd image (maybe compressed). Kernel
+parses the combined initrd image during boot time. The microcode file in
+cpio name space is:
on Intel: kernel/x86/microcode/GenuineIntel.bin
on AMD : kernel/x86/microcode/AuthenticAMD.bin

--
2.1.2