| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] How to deallocate memory shared between domain and xen
|
To: |
"Santos, Jose Renato G" <joserenato.santos@xxxxxx> |
|
Subject: |
Re: [Xen-devel] How to deallocate memory shared between domain and xen |
|
From: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
|
Date: |
Thu, 11 Aug 2005 09:58:33 +0100 |
|
Cc: |
Jose Renato Santos <jsantos@xxxxxxxxxx>, "Turner, Yoshio" <yoshio_turner@xxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, G John Janakiraman <john@xxxxxxxxxxxxxxxxxxx>, Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx> |
|
Delivery-date: |
Thu, 11 Aug 2005 08:52:23 +0000 |
|
Envelope-to: |
www-data@xxxxxxxxxxxxxxxxxxx |
|
In-reply-to: |
<6C21311CEE34E049B74CC0EF339464B924B44D@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
|
List-help: |
<mailto:xen-devel-request@lists.xensource.com?subject=help> |
|
List-id: |
Xen developer discussion <xen-devel.lists.xensource.com> |
|
List-post: |
<mailto:xen-devel@lists.xensource.com> |
|
List-subscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
|
List-unsubscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
|
References: |
<6C21311CEE34E049B74CC0EF339464B924B44D@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
|
Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
On 11 Aug 2005, at 04:41, Santos, Jose Renato G wrote:
OK. For now I will not explictly de-allocate the shared memory,
and let the memory be deallocated when the domain dies.
I am assuming nothing special has to be done and the memory gets
deallocated automaticaly when the domain dies
(SHARE_PFN_WITH_DOMAIN() seems to be including the shared
page in the list of pages owned by the domain which
should be automatically de-alocated when the domain dies, right?).
Will this also cause the memory to be returned to the Xen heap?
No, you need to deallocate yourself. Add a hook function off
domain_destruct(), and do any necessary deallocation there. The refcnts
are to make sure the domain isn;t killed while other domains may have
references to its xen-heap pages.
-- Keir
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home