From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:57288) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S2Uun-0001wd-6l for qemu-devel@nongnu.org; Tue, 28 Feb 2012 16:48:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S2Uul-0005fM-B6 for qemu-devel@nongnu.org; Tue, 28 Feb 2012 16:48:56 -0500 Received: from gate.crashing.org ([63.228.1.57]:58712) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S2Uul-0005cw-2M for qemu-devel@nongnu.org; Tue, 28 Feb 2012 16:48:55 -0500 Message-ID: <1330465707.11728.29.camel@pasglop> From: Benjamin Herrenschmidt Date: Wed, 29 Feb 2012 08:48:27 +1100 In-Reply-To: <4F4CC96B.6040003@redhat.com> References: <1330043012-30556-1-git-send-email-david@gibson.dropbear.id.au> <1330043012-30556-7-git-send-email-david@gibson.dropbear.id.au> <4F4CC96B.6040003@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH 6/6] kvm: Fix dirty tracking with large kernel page size List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Marcelo Tosatti , qemu-devel@nongnu.org, anthony@codemonkey.ws, David Gibson On Tue, 2012-02-28 at 14:32 +0200, Avi Kivity wrote: > What if TARGET_PAGE_SIZE > getpagesize()? Or is that impossible? We have yet to encounter such a case. It's not currently possible on power (some old embedded chips could do 1K and 2K page sizes in the TLB iirc but we never supported that in Linux and it's being phased out in HW). I suggest that gets dealt with when/if it needs to, which means probably never :-) Cheers, Ben.