cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

abituguru3.rst (2524B)

      1Kernel driver abituguru3
      2========================
      3
      4Supported chips:
      5  * Abit uGuru revision 3 (Hardware Monitor part, reading only)
      6
      7    Prefix: 'abituguru3'
      8
      9    Addresses scanned: ISA 0x0E0
     10
     11    Datasheet: Not available, this driver is based on reverse engineering.
     12
     13    Note:
     14	The uGuru is a microcontroller with onboard firmware which programs
     15	it to behave as a hwmon IC. There are many different revisions of the
     16	firmware and thus effectively many different revisions of the uGuru.
     17	Below is an incomplete list with which revisions are used for which
     18	Motherboards:
     19
     20	- uGuru 1.00    ~ 1.24    (AI7, KV8-MAX3, AN7)
     21	- uGuru 2.0.0.0 ~ 2.0.4.2 (KV8-PRO)
     22	- uGuru 2.1.0.0 ~ 2.1.2.8 (AS8, AV8, AA8, AG8, AA8XE, AX8)
     23	- uGuru 2.3.0.0 ~ 2.3.0.9 (AN8)
     24	- uGuru 3.0.0.0 ~ 3.0.x.x (AW8, AL8, AT8, NI8 SLI, AT8 32X, AN8 32X,
     25	  AW9D-MAX)
     26
     27	The abituguru3 driver is only for revision 3.0.x.x motherboards,
     28	this driver will not work on older motherboards. For older
     29	motherboards use the abituguru (without the 3 !) driver.
     30
     31Authors:
     32	- Hans de Goede <j.w.r.degoede@hhs.nl>,
     33	- (Initial reverse engineering done by Louis Kruger)
     34
     35
     36Module Parameters
     37-----------------
     38
     39* force: bool
     40			Force detection. Note this parameter only causes the
     41			detection to be skipped, and thus the insmod to
     42			succeed. If the uGuru can't be read the actual hwmon
     43			driver will not load and thus no hwmon device will get
     44			registered.
     45* verbose: bool
     46			Should the driver be verbose?
     47
     48			* 0/off/false  normal output
     49			* 1/on/true    + verbose error reporting (default)
     50
     51			Default: 1 (the driver is still in the testing phase)
     52
     53Description
     54-----------
     55
     56This driver supports the hardware monitoring features of the third revision of
     57the Abit uGuru chip, found on recent Abit uGuru featuring motherboards.
     58
     59The 3rd revision of the uGuru chip in reality is a Winbond W83L951G.
     60Unfortunately this doesn't help since the W83L951G is a generic microcontroller
     61with a custom Abit application running on it.
     62
     63Despite Abit not releasing any information regarding the uGuru revision 3,
     64Louis Kruger has managed to reverse engineer the sensor part of the uGuru.
     65Without his work this driver would not have been possible.
     66
     67Known Issues
     68------------
     69
     70The voltage and frequency control parts of the Abit uGuru are not supported,
     71neither is writing any of the sensor settings and writing / reading the
     72fanspeed control registers (FanEQ)
     73
     74If you encounter any problems please mail me <j.w.r.degoede@hhs.nl> and
     75include the output of: `dmesg | grep abituguru`