From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35575) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VDnjs-00065c-Kv for qemu-devel@nongnu.org; Sun, 25 Aug 2013 23:45:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VDnjm-0006U5-MS for qemu-devel@nongnu.org; Sun, 25 Aug 2013 23:45:12 -0400 Message-ID: <1377488700.3819.33.camel@pasglop> From: Benjamin Herrenschmidt Date: Mon, 26 Aug 2013 13:45:00 +1000 In-Reply-To: <87txiddt2h.fsf@linux.vnet.ibm.com> References: <1377235210-27093-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <1377235210-27093-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <31707B5A-C56F-4343-8851-1DD516A099AD@suse.de> <1377465202.3819.25.camel@pasglop> <87txiddt2h.fsf@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH -V3 2/4] target-ppc: Fix page table lookup with kvm enabled List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Aneesh Kumar K.V" Cc: Paul Mackerras , "qemu-ppc@nongnu.org list:PowerPC" , Alexander Graf , "qemu-devel@nongnu.org qemu-devel" On Mon, 2013-08-26 at 09:03 +0530, Aneesh Kumar K.V wrote: > > because non bolted entries could be invalidated and reused by the time > we look at the returned hpte values. I am not sure, whether it is ok or > we need to make sure such a thing doesn't happen. For the use case i am > looking at, ie, to dump the kernel address looking at bolted entries was > enough. It's general debugging right ?, if we stop the simulation we are fine, if we look at it "live", anything is fair game. Without non-bolted entries, you don't get vmalloc space for example, which can be annoying for debugging :-) Cheers, Ben.