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-rw-r--r--microkernel/mach/gnumach/hardware_compatibility_list.mdwn7
-rw-r--r--open_issues/gnumach_PCI_access.mdwn18
-rw-r--r--user/b__61___the_same_time._.mdwn9
3 files changed, 33 insertions, 1 deletions
diff --git a/microkernel/mach/gnumach/hardware_compatibility_list.mdwn b/microkernel/mach/gnumach/hardware_compatibility_list.mdwn
index 32e712c9..460c8aba 100644
--- a/microkernel/mach/gnumach/hardware_compatibility_list.mdwn
+++ b/microkernel/mach/gnumach/hardware_compatibility_list.mdwn
@@ -96,6 +96,11 @@ on the hardware devices they support.
[[hurd/DDE]] provides more up-to-date network device drivers, based on Linux
2.6.29 code, running as user-space processes.
+# BIOS32 Service Directory
+
+GNU Mach is not yet compatible with mmconfig, and PCI access requires the presence of the BIOS32 Service Directory.
+You can check for its presence by running a Linux 32 bits kernel with the kernel parameter "pci=bios" and checking if PCI devices work.
+
# User Success Reports
These boards are known to work. Gnumach/Hurd has been installed and run on these board successfully.
@@ -115,7 +120,7 @@ These boards are known to work. Gnumach/Hurd has been installed and run on these
Some people couldn't get these hardware combinations to work with Hurd.
-Note: The Debian GNU/Hurd installer actually runs on Linux, so it (almost) always works. The critical bit is booting after installation.
+The present Debian GNU/Hurd installer itself runs on Hurd, so failure on the installer may mean that the hardware is uncompatible with Hurd.
* ASUS P5A motherboard and AMD K6-2 333MHz CPU - doesn't boot
* ASUS P2B-LS motherboard with an Intel PII-MMX 400 MHz CPU - this board had a defective onboard NIC (that could not be disable in BIOS) and working 3COM Etherlink III NIC in a PCI bus slot. This combination worked with GNU/Linux. The 3COM NIC is known to work with the Hurd. However, while gnumach/Hurd will boot on this system, it is confused by the defective onboard NIC and unable to use the 3COM NIC. Attempting to start networking generates a continous stream of eth0 and eth1 reset messages on the console that renders the system unusable.
diff --git a/open_issues/gnumach_PCI_access.mdwn b/open_issues/gnumach_PCI_access.mdwn
new file mode 100644
index 00000000..dc099563
--- /dev/null
+++ b/open_issues/gnumach_PCI_access.mdwn
@@ -0,0 +1,18 @@
+[[!meta copyright="Copyright © 2014 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+Currently, GNU Mach requires the presence of the BIOS32 Service Directory for PCI access.
+The other possible methods are direct access, which is somewhat dangerous and using mmconfig, the preferred default in Linux.
+Direct access is already supported, but only used if BIOS32 is present for safety reasons.
+The relevant Linux code could be adapted and reused.
+
+
+[[!tag open_issue_gnumach]]
+
diff --git a/user/b__61___the_same_time._.mdwn b/user/b__61___the_same_time._.mdwn
new file mode 100644
index 00000000..02078faa
--- /dev/null
+++ b/user/b__61___the_same_time._.mdwn
@@ -0,0 +1,9 @@
+[[!meta copyright="Copyright © 2014 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]