Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 69 insertions, 0 deletions

diff --git a/Documentation/hw_random.txt b/Documentation/hw_random.txt
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+        Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
+        Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+        Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+
+Introduction:
+
+        The hw_random device driver is software that makes use of a
+        special hardware feature on your CPU or motherboard,
+        a Random Number Generator (RNG).
+
+        In order to make effective use of this device driver, you
+        should download the support software as well.  Download the
+        latest version of the "rng-tools" package from the
+        hw_random driver's official Web site:
+
+                http://sourceforge.net/projects/gkernel/
+
+About the Intel RNG hardware, from the firmware hub datasheet:
+
+        The Firmware Hub integrates a Random Number Generator (RNG)
+        using thermal noise generated from inherently random quantum
+        mechanical properties of silicon. When not generating new random
+        bits the RNG circuitry will enter a low power state. Intel will
+        provide a binary software driver to give third party software
+        access to our RNG for use as a security feature. At this time,
+        the RNG is only to be used with a system in an OS-present state.
+
+Theory of operation:
+
+        Character driver.  Using the standard open()
+        and read() system calls, you can read random data from
+        the hardware RNG device.  This data is NOT CHECKED by any
+        fitness tests, and could potentially be bogus (if the
+        hardware is faulty or has been tampered with).  Data is only
+        output if the hardware "has-data" flag is set, but nevertheless
+        a security-conscious person would run fitness tests on the
+        data before assuming it is truly random.
+
+        /dev/hwrandom is char device major 10, minor 183.
+
+Driver notes:
+
+        * FIXME: support poll(2)
+
+        NOTE: request_mem_region was removed, for two reasons:
+        1) Only one RNG is supported by this driver, 2) The location
+        used by the RNG is a fixed location in MMIO-addressable memory,
+        3) users with properly working BIOS e820 handling will always
+        have the region in which the RNG is located reserved, so
+        request_mem_region calls always fail for proper setups.
+        However, for people who use mem=XX, BIOS e820 information is
+        -not- in /proc/iomem, and request_mem_region(RNG_ADDR) can
+        succeed.
+
+Driver details:
+
+        Based on:
+        Intel 82802AB/82802AC Firmware Hub (FWH) Datasheet
+                May 1999 Order Number: 290658-002 R
+
+        Intel 82802 Firmware Hub: Random Number Generator
+        Programmer's Reference Manual
+                December 1999 Order Number: 298029-001 R
+
+        Intel 82802 Firmware HUB Random Number Generator Driver
+        Copyright (c) 2000 Matt Sottek <msottek@quiknet.com>
+
+        Special thanks to Matt Sottek.  I did the "guts", he
+        did the "brains" and all the testing.