From: Kai Luo <kluo@vmware.com>
To: xen-devel@lists.xensource.com, keir.xen@gmail.com
Subject: Re: Question about mapping hvmŒs memory to dom0
Date: Sun, 30 Jun 2013 22:58:17 -0700 (PDT) [thread overview]
Message-ID: <107213849.13945290.1372658297029.JavaMail.root@vmware.com> (raw)
In-Reply-To: <CDF6D42C.55E26%keir.xen@gmail.com>
[-- Attachment #1.1: Type: text/plain, Size: 1569 bytes --]
Thank you Keir,I added some printk code in do_domctl() of domctl.c to check whether the xc_domain_destroy works,which gives the printk lines I added,so the domain_kill is also called after I map the hvm's memory.Do you mean after the domain destroyed, the memory is still held by hvm instead of returning to xen?
----- Original Message -----
From: "Keir Fraser" <keir.xen@gmail.com>
To: "Kai Luo" <kluo@vmware.com>, xen-devel@lists.xensource.com
Sent: Monday, July 1, 2013 1:37:32 PM
Subject: Re: [Xen-devel] Question about mapping hvmŒs memory to dom0
Re: [Xen-devel] Question about mapping hvm‘s memory to dom0 The HVM domain is not destroyed while there are still external mappings of its memory.
On 01/07/2013 03:32, "Kai Luo" < kluo@vmware.com > wrote:
Hi:
I am trying to make some source code modifications to map the hvm memory to dom0,I use the xc_map_foreign_bulk to do this,It works and I export the hvm's memory to a file. My question is,after mapping the memory I use xc_domain_destroy to shutdown the running hvm,theoretically the mapped memory will be scrubbed because xen will scrubbed the hvm's memory before they are freed to xen hyperviser,however I export the mapped memory after destroying hvm,finding the content in mapped memory nearly same as formly exported,they are not scrubbed at all.That confused me.Can you give me any suggestion?
Thank you
Jone
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
[-- Attachment #1.2: Type: text/html, Size: 3299 bytes --]
[-- Attachment #2: Type: text/plain, Size: 126 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
next prev parent reply other threads:[~2013-07-01 5:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <183829454.13872961.1372645851829.JavaMail.root@vmware.com>
2013-07-01 2:32 ` Question about mapping hvm‘s memory to dom0 Kai Luo
2013-07-01 5:37 ` Question about mapping hvmŒs " Keir Fraser
2013-07-01 5:58 ` Kai Luo [this message]
2013-07-01 9:52 ` Question about mapping hvm‘s " George Dunlap
2013-07-01 10:19 ` Dietmar Hahn
2013-07-02 13:31 ` Kai Luo
2013-07-02 13:43 ` George Dunlap
2013-07-02 14:26 ` Kai Luo
2013-07-02 16:51 ` George Dunlap
2013-07-02 17:50 ` Andres Lagar-Cavilla
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=107213849.13945290.1372658297029.JavaMail.root@vmware.com \
--to=kluo@vmware.com \
--cc=keir.xen@gmail.com \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).