Commit Graph

39 Commits

Author SHA1 Message Date
Andriy Gapon
0112b52b61 Add support for microcode update on newer AMD CPUs (10h+)
This includes new code for parsing microcode files as well as
the kernel-side change to apply the update on all processors
at the same time.

Developed with help from Borislav Petkov, formerly bp@amd64.org.

Tested using Athlon II X2 processor on a system where BIOS does
not have the latest microcode version:
/boot/firmware/microcode_amd.bin: updating cpu /dev/cpuctl0 to revision 0x10000c7... done.

The microcode file is taken from here:
https://web.archive.org/web/20160528230514/http://www.amd64.org/microcode.html
(note that the original site seems to be down at the moment)
It can also be found here:
https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/amd-ucode

Reviewed by:	kib, stas
MFC after:	2 weeks
Relnotes:	maybe
Differential Revision: https://reviews.freebsd.org/D8384
2016-11-02 16:15:49 +00:00
Konstantin Belousov
78a6a430ca Return usual error indicator to shell.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Approved by:	re (hrs)
2016-06-16 12:08:25 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Simon J. Gerraty
ee7b0571c2 Merge head from 7/28 2014-08-19 06:50:54 +00:00
Konstantin Belousov
cef789cd61 Restore the ABI of the cpuctl(4) ioctl request CPUCTL_CPUID, use
separate argument structure with added level_type field for
CPUID_CPUID_COUNT request.

Reviewed by:	attilio (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-06-20 13:13:38 +00:00
Baptiste Daroussin
01c2b8ac0d use .Mt to mark up email addresses consistently (part2)
PR:		191174
Submitted by:	Franco Fichtner  <franco@lastsummer.de>
2014-06-20 09:57:27 +00:00
Attilio Rao
aa1cb7501f Following comments in r242565 add the possibility to specify ecx when
performing cpuid calls.
Add also a new way to specify the level type to cpucontrol(8) as
reported in the manpage.

Sponsored by:	EMC / Isilon storage division
Reviewed by:	bdrewery, gcooper
Testerd by:	bdrewery
2014-06-19 21:54:41 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
7cf3a1c6b2 Updated dependencies 2013-03-11 17:21:52 +00:00
Simon J. Gerraty
f5f7c05209 Updated dependencies 2013-02-16 01:23:54 +00:00
David E. O'Brien
d9a447559b Sync with HEAD. 2013-02-08 16:10:16 +00:00
Eitan Adler
bab89cefc7 Avoid clobbering errno with a call to fprintf
PR:		bin/173923
Submitted by:	Garrett Cooper <yanegomi@gmail.com>
Approved by:	cperciva
MFC After:	3 days
2013-01-16 05:00:51 +00:00
Simon J. Gerraty
23090366f7 Sync from head 2012-11-04 02:52:03 +00:00
Eitan Adler
e8c6172f10 While 'make universe' passed this didn't work with clang.
This reverts r242120

Submitted by:	Jan Beich
Approved by: cperciva (implicit)
2012-10-26 20:25:05 +00:00
Eitan Adler
b28f446886 This utility builds without NO_WCAST_ALIGN
Tested with make universe

No objections from:	stas
Approved by:	cperciva
MFC after:	3 days
2012-10-26 02:50:16 +00:00
Ed Schouten
bf70becee6 More -Wmissing-variable-declarations fixes.
In addition to adding `static' where possible:

- bin/date: Move `retval' into extern.h to make it visible to date.c.
- bin/ed: Move globally used variables into ed.h.
- sbin/camcontrol: Move `verbose' into camcontrol.h and fix shadow warnings.
- usr.bin/calendar: Remove unneeded variables.
- usr.bin/chat: Make `line' local instead of global.
- usr.bin/elfdump: Comment out unneeded function.
- usr.bin/rlogin: Use _Noreturn instead of __dead2.
- usr.bin/tset: Pull `Ospeed' into extern.h.
- usr.sbin/mfiutil: Put global variables in mfiutil.h.
- usr.sbin/pkg: Remove unused `os_corres'.
- usr.sbin/quotaon, usr.sbin/repquota: Remove unused `qfname'.
2012-10-19 14:49:42 +00:00
Marcel Moolenaar
7750ad47a9 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
Andriy Gapon
4ced504bff cpucontrol: use CPUCTL_UPDATE ioctl on correct file descriptor
I guess that means that microcode update has never worked for AMD CPUs.
Please also note that only older AMD CPUs and micrcode file format are
supported anyway (pre 10h family).

MFC after:	1 week
2012-06-03 08:30:00 +00:00
Warren Block
344c81a166 Fixes to man8 groff mandoc style, usage mistakes, or typos.
PR:		168016
Submitted by:	Nobuyuki Koganemaru
Approved by:	gjb
MFC after:	3 days
2012-05-24 02:24:03 +00:00
Gleb Kurtsou
0bb2aabf26 Hide DIR definition by making it an opaque struct typedef.
Introduce dirfd() libc exported symbol replacing macro with same name,
preserve _dirfd() macro for internal use.

Replace dirp->dd_fd with dirfd() call. Avoid using dirfd as variable
name to prevent shadowing global symbol.

Sponsored by:	Google Summer Of Code 2011
2012-05-19 12:44:27 +00:00
Eitan Adler
de879bdae9 Fix warning when compiling with gcc46:
error: variable 'flags' set but not used

Approved by:	dim, cperciva (mentor, blanket for pre-mentorship already-approved commits)
MFC after:	3 days
2012-01-20 01:39:16 +00:00
Dimitry Andric
5207dac8ba Use NO_WCAST_ALIGN for usr.sbin/cpucontrol; because this is only built
for x86, any alignment warnings can be safely ignored.

MFC after:	1 week
2011-12-17 19:58:48 +00:00
Fabien Thomas
96ff3b75d4 Add VIA microde update support to cpuctl(4) and cpucontrol(8).
Support have been tested with X2 CPU and QuadCore CPU.

MFC after:	1 month
2011-12-12 12:30:44 +00:00
Stanislav Sedov
3b232eb663 - Save some space relying on the fact that all ioctl commands
prefixes are the same.

Suggested by:	"Carlos A. M. dos Santos" <unixmania@gmail.com>
2011-01-07 18:52:08 +00:00
Stanislav Sedov
f264409aea - Show textual representation of ioctl command in warning message
if ioctl(4) is failed besides the command number.

Suggested by:	delphij
MFC after:	2 weeks
2011-01-06 07:13:23 +00:00
Gavin Atkinson
acdfff93b6 Remove dead assignments, we overwrite the variable almost immediately.
Found by:	clang static analyzer
2010-06-19 16:29:23 +00:00
Ulrich Spörlein
0afc94c17a mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS and SECURITY CONSIDERATIONS as common sections and where to put
them.

Found by:	mdocml lint run
Reviewed by:	ru
2010-05-13 12:07:55 +00:00
Ed Schouten
71ccf09269 The last big commit: let usr.sbin/ use WARNS=6 by default. 2010-01-02 11:07:44 +00:00
Ed Schouten
10bc3a7f42 ANSIfy almost all applications that use WARNS=6.
I was considering committing all these patches one by one, but as
discussed with brooks@, there is no need to do this. If we ever
need/want to merge these changes back, it is still possible to do this
per application.
2009-12-29 22:53:27 +00:00
Antoine Brodin
13e403fdea (S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument.
Fix some wrong usages.
Note: this does not affect generated binaries as this argument is not used.

PR:		137213
Submitted by:	Eygene Ryabinkin (initial version)
MFC after:	1 month
2009-12-28 22:56:30 +00:00
Stanislav Sedov
b2d758545b - Add support to atomically set/clear individual bits of a MSR register
via cpuctl(4) driver.  Two new CPUCTL_MSRSBIT and CPUCTL_MSRCBIT ioctl(2)
  calls treat the data field of the argument struct passed as a mask
  and set/clear bits of the MSR register according to the mask value.
- Allow user to perform atomic bitwise AND and OR operaions on MSR registers
  via cpucontrol(8) utility.  Two new operations ("&=" and "|=") have been
  added.  The first one applies bitwise AND operaion between the current
  contents of the MSR register and the mask, and the second performs bitwise
  OR.  The argument can be optionally prefixed with "~" inversion operator.
  This allows one to mimic the "clear bit" behavior by using the command
  like this:
      cpucontrol -m 0x10&=~0x02		# clear the second bit of TSC MSR

  Inversion operator support in all modes (assignment, OR, AND).

Approved by:	re (kib)
MFC after:	1 month
2009-06-30 12:35:47 +00:00
Christian Brueffer
2a72feb42b Correct the information about when the respective functionality first
appeared in FreeBSD.

PR:		133785
Submitted by:	Ulrich Spoerlein <uqs@spoerlein.net>
MFC after:	3 days
2009-04-23 08:37:56 +00:00
Daniel Gerzo
7848de15ac - use .Ex macro in EXIT STATUS section 2009-01-07 01:31:09 +00:00
Stanislav Sedov
63a07fdbc0 - Improve wording.
Approved by:	kib (mentor)
MFC after:	1 week
2009-01-04 15:49:30 +00:00
Christian Brueffer
6d85087649 Mdoc and wording improvements. 2008-12-30 20:16:33 +00:00
Stanislav Sedov
cbcc55799f - Fix error reporting.
Approved by:	kib
2008-08-12 09:47:50 +00:00
Stanislav Sedov
e085f869d5 - Add cpuctl(4) pseudo-device driver to provide access to some low-level
features of CPUs like reading/writing machine-specific registers,
  retrieving cpuid data, and updating microcode.
- Add cpucontrol(8) utility, that provides userland access to
  the features of cpuctl(4).
- Add subsequent manpages.

The cpuctl(4) device operates as follows. The pseudo-device node cpuctlX
is created for each cpu present in the systems. The pseudo-device minor
number corresponds to the cpu number in the system. The cpuctl(4) pseudo-
device allows a number of ioctl to be preformed, namely RDMSR/WRMSR/CPUID
and UPDATE. The first pair alows the caller to read/write machine-specific
registers from the correspondent CPU. cpuid data could be retrieved using
the CPUID call, and microcode updates are applied via UPDATE.

The permissions are inforced based on the pseudo-device file permissions.
RDMSR/CPUID will be allowed when the caller has read access to the device
node, while WRMSR/UPDATE will be granted only when the node is opened
for writing. There're also a number of priv(9) checks.

The cpucontrol(8) utility is intened to provide userland access to
the cpuctl(4) device features. The utility also allows one to apply
cpu microcode updates.

Currently only Intel and AMD cpus are supported and were tested.

Approved by:	kib
Reviewed by:	rpaulo, cokane, Peter Jeremy
MFC after:	1 month
2008-08-08 16:26:53 +00:00