xen hvm trouble

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Fri, Oct 04, 2013 at 04:32:47PM +0200, Manuel Bouyer wrote:
> On Fri, Oct 04, 2013 at 12:50:16PM +0100, Patrick Welche wrote:
> > I might add some projects encountered during this morning's work:
> > - add HVM support to xen 4  (Maybe part of "Support latest features of Xen")
> 
> hvm works with xen 4 and NetBSD dom0. I have several domUs running on Xen
> 4.1.x (including 2 windows domUs)

Sorry: I see in the xen howto "the HVM support (for later versions
this is included in sysutils/xentools)."

I had my first attempt at an HVM and failed. In order to try to test
glib2/patch-ba myself, I tried to make a dragonfly domu:

builder = "hvm"
name = "dfly"
vcpus = 1
memory = 512
disk = ['phy:/dev/mapper/vg0-dfly,hda,w', 
'file:/store/iso/dfly-x86_64-3.4.3_REL.iso,cd0,r']
vif = ['mac=00:1e:8c:5e:52:c8,bridge=bridge0']
boot="d"

but:

# xl create -c dfly.cfg 
Parsing config from dfly.cfg
libxl: error: libxl_create.c:437:libxl__domain_make: domain creation fail
libxl: error: libxl_create.c:663:initiate_domain_create: cannot make domain: -3
libxl: error: libxl.c:1377:libxl__destroy_domid: non-existant domain -1
libxl: error: libxl.c:1341:domain_destroy_callback: unable to destroy guest 
with domid 4294967295
libxl: error: libxl_create.c:1171:domcreate_destruction_cb: unable to destroy 
domain 4294967295 following failed creation

I have netbsd and debian domus working but without hvm...

Presumably "hda" isn't much use to dragonfly, but the error looks worse
than that...

Cheers,

Patrick