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Diff for /wikisrc/ports/xen/howto.mdwn between versions 1.95 and 1.101

-version 1.95, 2015/03/05 14:04:55
+version 1.101, 2015/03/12 23:40:07
  Line 95  of 2014-12.
  xenkernel45 provides Xen 4.5.  This is new to pkgsrc as of 2015-01 and
  not yet recommended for other than experimental/testing use.
+ See also the [Xen Security Advisory page](http://xenbits.xen.org/xsa/).
  Ideally newer versions of Xen will be added to pkgsrc.
  Note that NetBSD support is called XEN3.  It works with Xen 3 and Xen
- Line 128  Architecture
+ Line 130  Architecture
  ------------
  Xen itself can run on i386 or amd64 machines.  (Practically, almost
- any computer where one would want to run Xen supports amd64.)  If
+ any computer where one would want to run Xen today supports amd64.)
- using an i386 NetBSD kernel for the dom0, PAE is required (PAE
- versions are built by default).  While i386 dom0 works fine, amd64 is
+ Xen, the dom0 kernel, and each domU kernel can be either i386 or
- recommended as more normal.
+ amd64.  When building a xenkernel package, one obtains i386 on an i386
+ host, and amd64 on an amd64 host.  If the xen kernel is i386, then the
+ dom0 kernel and all domU kernels must be i386.  With an amd64 xen
+ kernel, an amd64 dom0 kernel is known to work, and an i386 dom0 kernel
+ should in theory work.  An amd64 xen/dom0 is known to support both
+ i386 and amd64 domUs.
+ i386 dom0 and domU kernels must be PAE (except for Xen 3.1); these are
+ built by default.  (Note that emacs (at least) fails if run on i386
+ with PAE when built without, and vice versa, presumably due to bugs in
+ the undump code.)
+ Because of the above, the standard approach is to use amd64 for the
+ dom0.
  Xen 4.2 is the last version to support i386 as a host.  TODO: Clarify
- if this is about the CPU having to be amd64, or about the dom0 kernel
+ if this is about the CPU, the xen kernel, or the dom0 kernel having to
- having to be amd64.
+ be amd64.
- One can then run i386 domUs and amd64 domUs, in any combination.  If
- running an i386 NetBSD kernel as a domU, the PAE version is required.
- (Note that emacs (at least) fails if run on i386 with PAE when built
- without, and vice versa, presumably due to bugs in the undump code.)
  Stability
  ---------
- Line 514  Ensure that the contents of /etc/rc.d/xe
+ Line 525  Ensure that the contents of /etc/rc.d/xe
  correct set of daemons.  Ensure that the domU config files are valid
  for the new version.
+ Hardware known to work
+ ----------------------
+ Arguably, this section is misplaced, and there should be a page of
+ hardware that runs NetBSD/amd64 well, with the mostly-well-founded
+ assumption that NetBSD/xen runs fine on any modern hardware that
+ NetBSD/amd64 runs well on.  Until then, we give motherboard/CPU/RAM
+ triples to aid those choosing a motherboard.  Note that Xen systems
+ usually do not run X, so a listing here does not imply that X works at
+ all.
+         Supermicro X9SRL-F, Xeon E5-1650 v2, 96 GiB ECC
+         Supermicro ??, Atom C2758 (8 core), 32 GiB ECC
+         ASUS M5A78L-M/USB3 AM3+ microATX, AMD Piledriver X8 4000MHz, 16 GiB ECC
+ Older hardware:
+         Intel D915GEV, Pentium4 CPU 3.40GHz, 4GB 533MHz Synchronous DDR2
  Running Xen under qemu
  ----------------------

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