Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752611Ab3FXD7V (ORCPT ); Sun, 23 Jun 2013 23:59:21 -0400 Received: from gate.crashing.org ([63.228.1.57]:52187 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752374Ab3FXD7T (ORCPT ); Sun, 23 Jun 2013 23:59:19 -0400 Message-ID: <1372046300.3944.131.camel@pasglop> Subject: Re: [PATCH 3/4] KVM: PPC: Add support for IOMMU in-kernel handling From: Benjamin Herrenschmidt To: David Gibson Cc: Alex Williamson , Alexey Kardashevskiy , Alexander Graf , linuxppc-dev@lists.ozlabs.org, Paul Mackerras , "kvm@vger.kernel.org mailing list" , open list , kvm-ppc@vger.kernel.org, Rusty Russell , Joerg Roedel Date: Mon, 24 Jun 2013 13:58:20 +1000 In-Reply-To: <20130624035426.GE25265@voom.fritz.box> References: <1371653443.21896.291.camel@pasglop> <1371656989.22659.98.camel@ul30vt.home> <51C28BEA.8050501@ozlabs.ru> <20130620052822.GB3140@voom.redhat.com> <1371714449.3944.14.camel@pasglop> <51C2C1CC.9000003@ozlabs.ru> <1371740113.32709.22.camel@ul30vt.home> <20130622120304.GB25265@voom.fritz.box> <1371943693.3944.104.camel@pasglop> <20130624035426.GE25265@voom.fritz.box> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.4-0ubuntu1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 791 Lines: 21 On Mon, 2013-06-24 at 13:54 +1000, David Gibson wrote: > > DDW means an API by which the guest can request the creation of > > additional iommus for a given device (typically, in addition to the > > default smallish 32-bit one using 4k pages, the guest can request > > a larger window in 64-bit space using a larger page size). > > So, would a PAPR gest requesting this expect the new window to have > a new liobn, or an existing liobn? New liobn or there is no way to H_PUT_TCE it (it exists in addition to the legacy window). Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/