From a5b95baab6b4512ceaef8749a29ed7b3685b4125 Mon Sep 17 00:00:00 2001 From: Thomas Schwinge Date: Wed, 15 Jun 2011 22:54:09 +0200 Subject: Some more bits from IRC and elsewhere. --- microkernel/mach/gnumach/ports/xen.mdwn | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) (limited to 'microkernel') diff --git a/microkernel/mach/gnumach/ports/xen.mdwn b/microkernel/mach/gnumach/ports/xen.mdwn index bf26410a..af431c92 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 + + youpi: does xen provide disk caching options ? + through a blktap, probably + ok -- cgit v1.2.3