From: Ian Campbell <Ian.Campbell@citrix.com>
To: 夏业添 <summerxyt@gmail.com>
Cc: "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: Problem about DOMID_SELF
Date: Mon, 16 Apr 2012 08:39:18 +0100 [thread overview]
Message-ID: <1334561958.4445.5.camel@dagon.hellion.org.uk> (raw)
In-Reply-To: <CAMjnu2e4DL_MKHPEJcSWwBUkCTSQ9kha5D-TzkPu4PWUb4nu6Q@mail.gmail.com>
On Sun, 2012-04-15 at 09:58 +0100, 夏业添 wrote:
> Hi everyone,
>
> I'm new on this field. The comment of source code says that
> "DOMID_SELF is used in certain contexts to refer to oneself." Is this
> id the micro returns the same as the id which i can get by xm list?
DOMID_SELF is a magic number used as a placeholder to mean "this
domain", it is interpreted this way by various routines in the
hypervsor, it is not literally the domid of the current domain.
I suggest you grep the Xen source for the definition and use of
DOMID_SELF, all should become clear.
In general domains are not (and do not need to be) aware of their own
domain id.
Ian.
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prev parent reply other threads:[~2012-04-16 7:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-15 8:58 Problem about DOMID_SELF 夏业添
2012-04-16 7:39 ` Ian Campbell [this message]
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