1 .\" $OpenBSD: glxsb.4,v 1.5 2007/05/31 19:19:54 jmc Exp $
3 .\"Copyright (c) 2006 Tom Cosgrove <tom@openbsd.org>
5 .\"Permission to use, copy, modify, and distribute this software for any
6 .\"purpose with or without fee is hereby granted, provided that the above
7 .\"copyright notice and this permission notice appear in all copies.
9 .\"THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 .\"WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 .\"MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 .\"ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 .\"WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 .\"ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 .\"OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 .Nd Geode LX Security Block crypto accelerator
26 To compile this driver into the kernel,
27 place the following lines in your
28 kernel configuration file:
29 .Bd -ragged -offset indent
34 Alternatively, to load the driver as a
35 module at boot time, place the following line in
37 .Bd -literal -offset indent
43 driver supports the security block of the Geode LX series processors.
44 The Geode LX is a member of the AMD Geode family
45 of integrated x86 system chips.
47 Driven by periodic checks for available data from the generator,
49 supplies entropy to the
51 driver for common usage.
54 also supports acceleration of AES-128-CBC operations for
56 It also registers itself to accelerate other HMAC algorithms, although
57 there is no hardware acceleration for those algorithms.
58 This is only needed so
65 framework will fail to open the crypto session on the device if the AES
66 key's length is != 128 bits.
67 This prevents the use of the
69 device driver with AES keys of length != 128 bits.
80 device driver first appeared in
84 device driver was imported into
90 device driver was written for
97 .An Patrick Lamaiziere Aq patfbsd@davenulle.org .