回复： [help] Who's the author of libxc? I don't know howto start with it

回复： [help] Who's the author of libxc? I don't know howto start with it

[¤終於aware]

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Thanks.
    I have already previewed the xenctrl.h. 
    The following is what I understand: libxc is compiled to a file name after 'xc**' endding with '.so', xend communicates with domain0 through xc and domain0 communicates with hypervisor through privcmd.
    What's the privcmd?
 
 
------------------ 原始邮件 ------------------
发件人: "Wei Liu"<wei.liu2@citrix.com>;
发送时间: 2012年1月1日(星期天) 晚上8:09
收件人: "¤?K於aware"<250716708@qq.com>; 
抄送: "wei.liu2"<wei.liu2@citrix.com>; "xen-devel"<xen-devel@lists.xensource.com>; 
主题: Re: [Xen-devel] [help] Who's the author of libxc? I don't know howto start with it

 
On Sat, 2011-12-31 at 11:58 +0000, ¤?K於aware wrote:
> Hi,
>     I wanna try my best to understand the libxc in xentools, but it's
> difficult for me, a newer,to comprehend it's principle!
>     Begging advice,thanks a lot ahead!
>  

libxc acts as intermediate between userspace and hypervisor. I think you
can first take a look at its exported header file -- xenctrl.h , so that
you can have a rough idea about its functionalities. The you can pick
whatever functionality you are interested in and dig deeper.


Wei.

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Re: 回复： [help] Who's the author of libxc? I don't know howto start with it

[Wei Liu]

Please don't top-posting.

And I strongly recommend you use Gmail (or other proper mail clients),
because QQmail messes up threads.

On Mon, Jan 02, 2012 at 10:24:07AM +0000, ¤終於aware wrote:
>     Thanks.
>     I have already previewed the xenctrl.h.
>     The following is what I understand: libxc is compiled to a file name after 'xc**' endding with '.so', xend communicates with domain0 through xc and domain0 communicates with hypervisor through privcmd.

libxc is not a standalone program you can call. xend has a python
module to expose libxc functionalities to python.

If you are using newer xen, you probably want to change to xl
toolstack.

>     What's the privcmd?
> 

It is short for "privileged command" I think. It is the entry point to
kernel space when you want to issue a hypercall.


Wei.

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