[XenAccess-devel] Difference between libvirt and XenAccess

[Tomas K. <to...@ji...>]

Hi,

I like the idea of XenAccess and will take a look at the source code, but 
there are some things not clear to me. Can somebody give me an exmplanation?

1) What does XenAccess add to the libvirt functionality? As I saw homepages 
of both they seemed quite similar.

2) The libvirt says: 'some very specific capabilities which are not generic 
enough may not be provided as libvirt APIs'. Do you plan to use some direct 
access to Xen via its API? (although it is pretty unstable now).

3) I use xen3.0.2 and the libvirt does not find dom 1 even there is one 
according to xm list:

root@elf:/home/koubat/source/xen/xenaccess/trunk/libxa/examples
$ LD_PRELOAD=../libxenaccess.so ./module-list
(0) (null)
ERROR: Failed to find Domain 1
ERROR: failed to get domain info for domain id 1
ERROR: could not get kernel name for domain id 1
ERROR: failed to lookup 'swapper_pg_dir' address
failed to init XenAccess library: Bad address

root@elf:/home/koubat/source/xen/xenaccess/trunk/libxa/examples
$ xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0      744     2 r----- 16098.9
ce                                 1      256     1 -b----   342.5


-- 
Tomas Kouba