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authorThomas Schwinge <thomas@schwinge.name>2011-06-15 22:54:09 +0200
committerThomas Schwinge <thomas@schwinge.name>2011-06-15 22:54:09 +0200
commita5b95baab6b4512ceaef8749a29ed7b3685b4125 (patch)
tree88c0ff2e405ad487a6923da915700179eba35746 /microkernel/mach/gnumach/ports/xen.mdwn
parenta54427376610d8c5f386c27ac7634bfb127b853c (diff)
Some more bits from IRC and elsewhere.
Diffstat (limited to 'microkernel/mach/gnumach/ports/xen.mdwn')
-rw-r--r--microkernel/mach/gnumach/ports/xen.mdwn24
1 files changed, 19 insertions, 5 deletions
diff --git a/microkernel/mach/gnumach/ports/xen.mdwn b/microkernel/mach/gnumach/ports/xen.mdwn
index bf26410..af431c9 100644
--- a/microkernel/mach/gnumach/ports/xen.mdwn
+++ b/microkernel/mach/gnumach/ports/xen.mdwn
@@ -1,4 +1,4 @@
-[[!meta copyright="Copyright © 2007, 2008, 2009 Free Software Foundation,
+[[!meta copyright="Copyright © 2007, 2008, 2009, 2011 Free Software Foundation,
Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
@@ -6,11 +6,12 @@ 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]]."]]"""]]
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
[[!toc]]
+
# Xen dom0, hypervisor
/!\ Now that GNU Mach handles PAE you can use a PAE-enabled hypervisor.
@@ -30,6 +31,7 @@ If you have a free partition, you can fdisk to type 0x83, create a filesystem us
Replace /dev/sda4 with your partition. Install and use crosshurd to setup a GNU/Hurd system on this partition.
+
# /etc/xen/hurd configuration
Here is a sample /etc/xen/hurd configuration
@@ -49,6 +51,7 @@ Suggestions about [[networking_configuration]] are available.
If you need stable MAC addresses, use a syntax like `vif = [
'mac=00:16:3e:XX:XX:XX, bridge=br0' ]`.
+
# Running Hurd with Xen
To run Hurd with Xen, use:
@@ -63,6 +66,7 @@ and gnumach should get started. Proceed with native-install.
- If `xm` complains about networking (`vif could not be connected`), it's Xen scripts' fault, see Xen documentation for how to configure the network. The simplest way is network-bridge with fixed IPs (note that you need the bridge-utils package for this). You can also just disable networking by commenting the vif line in the config.
- If `xm` complains `Error: (2, 'Invalid kernel', 'xc_dom_compat_check: guest type xen-3.0-x86_32 not supported by xen kernel, sorry\n')`, you most probably have a PAE-enabled hypervisor and a non-PAE gnumach. Either install and boot non-PAE hypervisor and kernel, or rebuilt gnumach in PAE mode.
+
# Building from sources
If you want to generate these images, first get the `gnumach-1-branch-Xen-branch` branch from gnumach CVS.
@@ -75,7 +79,6 @@ Then use
The current `hurd-modules` was built from the debian packages `hurd 20070606-2` and `libc0.3 2.6.1-1`.
/!\ This means that when using this image, your GNU/Hurd system also needs to be a glibc version 2.6 or later-based one!
----
# Miscellaneous
@@ -83,7 +86,6 @@ The current `hurd-modules` was built from the debian packages `hurd 20070606-2`
[[!GNU_Savannah_task 5468]], [[!GNU_Savannah_task 6584]].
----
# `pv-grub`
@@ -91,3 +93,15 @@ From Xen 4.0 on you'll be able to run the GNU Hurd directly using `pv-grub`,
without the need to [prepare a special bootstrap
image](http://youpibouh.thefreecat.org/hurd-xen/build_hurd-modules) (like an
initrd).
+
+
+# Host-side Writeback Caching
+
+Optimization possible as it is with [[QEMU|hurd/running/qemu/discussion]],
+*Host-side Writeback Caching*?
+
+IRC, freenode, #hurd, 2011-06-08
+
+ <braunr> youpi: does xen provide disk caching options ?
+ <youpi> through a blktap, probably
+ <braunr> ok