[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] Get MFN from the pv linux guest

To: Steven <wangwangkang@xxxxxxxxx>
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Tue, 15 Nov 2011 08:49:03 +0000
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Tue, 15 Nov 2011 00:49:55 -0800
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On Tue, 2011-11-15 at 05:06 +0000, Steven wrote:
> Dear All,
> I am trying get the machine frame number of the corresponding
> pseudo-physical page number in a PV Linux guest.
> Could anyone suggest which data structure I have to take a look? Thanks.

You need to look up in the p2m table. This is maintained by the guest OS
so the method for accessing it is a bit kernel specific but there is
generally a function like pfn_to_mfn() or so.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

References:
- [Xen-devel] Get MFN from the pv linux guest
  - From: Steven

Prev by Date: Re: [Xen-devel] poweroff -f in dom0 panics xen
Next by Date: [Xen-devel] Re: [PATCH 1 of 3 V7] tools/libxc: introduce xc_memalign in xc_{minios, linux, solaris, netbsd}.c
Previous by thread: [Xen-devel] Get MFN from the pv linux guest
Next by thread: [Xen-devel] xen-unstable/staging: qemu git file corrupt
Index(es):
- Date
- Thread

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.