Xen devel - Jul 2011 - Write a key-value pair to xenstore using the libxl

Hi,
I want to add a new key-value pair in vm config file and then need to get the
value in VM using xenstore_read(). But I don''t know how to store the
key-value to xenstore using the libxl? Which method in libxl can I use to do
this? Would anyone help me?


Thank you very much.
zhikai











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On Wed, 2011-07-06 at 08:42 +0100, zhikai wrote:
> I want to add a new key-value pair in vm config file and then need to
> get the value in VM using xenstore_read(). But I don''t know how to
> store the key-value to xenstore using the libxl? Which method in libxl
> can I use to do this? Would anyone help me?
When you create a domain via libxl you can pass an "xsdata" in the
libxl_domain_create_info which will cause extra xenstore keys to be
written.

This is not currently exposed via the xl tool though so if you are using
that you''ll need to patch xl to read a key from the cfg file and
populate this field.

Ian.




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