linux-toradex.git/arch/x86/kernel/microcode_amd.c, branch v3.2.47

x86, microcode, AMD: Add support for family 16h processors

2012-12-06T11:20:31+00:00

commit 36c46ca4f322a7bf89aad5462a3a1f61713edce7 upstream.

Add valid patch size for family 16h processors.

[ hpa: promoting to urgent/stable since it is hw enabling and trivial ]

Signed-off-by: Boris Ostrovsky 
Acked-by: Andreas Herrmann 
Link: http://lkml.kernel.org/r/1353004910-2204-1-git-send-email-boris.ostrovsky@amd.com
Signed-off-by: H. Peter Anvin 
Signed-off-by: Ben Hutchings

x86/microcode_amd: Add support for CPU family specific container files

2012-02-03T17:21:38+00:00

commit 5b68edc91cdc972c46f76f85eded7ffddc3ff5c2 upstream.

We've decided to provide CPU family specific container files
(starting with CPU family 15h). E.g. for family 15h we have to
load microcode_amd_fam15h.bin instead of microcode_amd.bin

Rationale is that starting with family 15h patch size is larger
than 2KB which was hard coded as maximum patch size in various
microcode loaders (not just Linux).

Container files which include patches larger than 2KB cause
different kinds of trouble with such old patch loaders. Thus we
have to ensure that the default container file provides only
patches with size less than 2KB.

Signed-off-by: Andreas Herrmann 
Cc: Borislav Petkov 
Cc: 
Link: http://lkml.kernel.org/r/20120120164412.GD24508@alberich.amd.com
[ documented the naming convention and tidied the code a bit. ]
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman

x86, microcode, AMD: Add microcode revision to /proc/cpuinfo

2011-10-19T14:07:30+00:00

Enable microcode revision output for AMD after 506ed6b53e00 ("x86,
intel: Output microcode revision in /proc/cpuinfo") did it for Intel.

Signed-off-by: Borislav Petkov

x86, microcode, AMD: Fix section header size check

2011-06-16T15:23:54+00:00

The ucode size check has to take the section header size into account
too when sanity checking the section length. Shorten and clarify define
names, while at it.

Caught-by: Ben Hutchings 
Link: http://lkml.kernel.org/r/1302752223.5282.674.camel@localhost
Signed-off-by: Borislav Petkov

x86, microcode, AMD: Correct buf references

2011-06-15T13:13:49+00:00

Both the equivalence table and the microcode patch types are u32. Access
them properly through the buf-ptr.

Signed-off-by: Borislav Petkov

x86, microcode, AMD: Fix signedness bug in generic_load_microcode()

2011-02-20T13:01:32+00:00

install_equiv_cpu_table() returns type int.  It uses negative
error codes so using an unsigned type breaks the error handling.

Signed-off-by: Dan Carpenter 
Acked-by: Borislav Petkov 
Cc: open list:AMD MICROCODE UPD... 
Cc: Andreas Herrmann 
LKML-Reference: <20110218091716.GA4384@bicker>
Signed-off-by: Ingo Molnar

x86, microcode, AMD: Extend ucode size verification

2011-02-10T11:24:03+00:00

The different families have a different max size for the ucode patch,
adjust size checking to the family we're running on. Also, do not
vzalloc the max size of the ucode but only the actual size that is
passed on from the firmware loader.

Signed-off-by: Borislav Petkov

x86, microcode, AMD: Cleanup dmesg output

2011-02-09T15:05:36+00:00

Unify pr_* to use pr_fmt, shorten messages, correct type formatting.

Signed-off-by: Borislav Petkov 
Acked-by: Andreas Herrmann

x86, microcode, AMD: Remove unneeded memset call

2011-02-09T15:05:35+00:00

collect_cpu_info_amd() clears its csig arg but this is done in the
microcode_core's collect_cpu_info() by clearing the embedding struct
ucode_cpu_info. Drop it.

Signed-off-by: Borislav Petkov 
Acked-by: Andreas Herrmann

x86, microcode, AMD: Simplify get_next_ucode

2011-02-09T15:05:34+00:00

Do not copy the section header but look at it directly through the
pointer. Also, make it return a ptr to a ucode header directly
thus dropping a bunch of unneeded casts. Finally, simplify
generic_load_microcode(), while at it.

Signed-off-by: Borislav Petkov 
Acked-by: Andreas Herrmann