From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:53973)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <paulus@ozlabs.org>) id 1aOulQ-0005G3-Ey
	for qemu-devel@nongnu.org; Thu, 28 Jan 2016 17:10:05 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <paulus@ozlabs.org>) id 1aOulM-0000Xh-Di
	for qemu-devel@nongnu.org; Thu, 28 Jan 2016 17:10:04 -0500
Date: Fri, 29 Jan 2016 09:09:49 +1100
From: Paul Mackerras <paulus@ozlabs.org>
Message-ID: <20160128220949.GA18835@fergus.ozlabs.ibm.com>
References: <1453095881-16704-1-git-send-email-david@gibson.dropbear.id.au>
	<20160119074817.GA16048@in.ibm.com>
	<20160119110233.GE27454@voom.redhat.com> <56AA827A.2070905@suse.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <56AA827A.2070905@suse.de>
Subject: Re: [Qemu-devel] [RFC 0/3] Draft implementation of HPT resizing
	(qemu side)
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Alexander Graf <agraf@suse.de>
Cc: lvivier@redhat.com, thuth@redhat.com, qemu-devel@nongnu.org, qemu-ppc@nongnu.org, Bharata B Rao <bharata@linux.vnet.ibm.com>, David Gibson <david@gibson.dropbear.id.au>

On Thu, Jan 28, 2016 at 10:04:58PM +0100, Alexander Graf wrote:
> 
> Does this work on real hardware? Say, a G5?

Do you mean, could a bare-metal kernel change its hashed page table?
It could - it would have to allocate a new table, copy over the bolted
mappings (at least), switch to real mode, change SDR1, switch back to
virtual mode.

Paul.