xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Mukesh Rathor <mukesh.rathor@oracle.com>
To: "Xen-devel@lists.xensource.com" <Xen-devel@lists.xensource.com>
Subject: [Ques]:xen_ident_map_ISA ant it's mfns...
Date: Fri, 20 Jan 2012 17:29:32 -0800	[thread overview]
Message-ID: <20120120172932.3dd3f5ac@mantra.us.oracle.com> (raw)

Hi,

I am bit confused about the do_update_va_mapping call that dom0 makes in
xen_ident_map_ISA() to map ffff8800000a0000 to mfn a0. The mfn belongs
to DOMID_IO. Before the mfn is mapped, the l1 entry is not empty:

0000000139d08500:  00100001380a0027

After the mapping:

0000000139d08500:  00100000000a0467  as expected.

However, the mfn 1380a0 still seems to belong to dom0. Shouldn't that
have been returned back to the xen heap? 

thanks,
Mukesh

             reply	other threads:[~2012-01-21  1:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-21  1:29 Mukesh Rathor [this message]
2012-01-23 16:43 ` [Ques]:xen_ident_map_ISA ant it's mfns Konrad Rzeszutek Wilk
2012-01-24  2:14   ` Mukesh Rathor

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=20120120172932.3dd3f5ac@mantra.us.oracle.com \
    --to=mukesh.rathor@oracle.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).