{"id":816277,"url":"http://patchwork.ozlabs.org/api/patches/816277/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170920114637.42004-2-aik@ozlabs.ru/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170920114637.42004-2-aik@ozlabs.ru>","list_archive_url":null,"date":"2017-09-20T11:46:20","name":"[qemu,v4,01/18] exec: Explicitly export target AS from address_space_translate_internal","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"5bba44e7820739ec2cc28a405663289ea8a1bb70","submitter":{"id":7621,"url":"http://patchwork.ozlabs.org/api/people/7621/?format=json","name":"Alexey Kardashevskiy","email":"aik@ozlabs.ru"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170920114637.42004-2-aik@ozlabs.ru/mbox/","series":[{"id":4138,"url":"http://patchwork.ozlabs.org/api/series/4138/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=4138","date":"2017-09-20T11:46:20","name":"memory: Reduce memory use","version":4,"mbox":"http://patchwork.ozlabs.org/series/4138/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/816277/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/816277/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=)","Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xy2lr2327z9sNr\n\tfor ;\n\tThu, 21 Sep 2017 00:52:40 +1000 (AEST)","from localhost ([::1]:48611 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1dugMg-0004NV-BH\n\tfor incoming@patchwork.ozlabs.org; Wed, 20 Sep 2017 10:52:38 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:56362)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dufmG-0003O7-NV\n\tfor qemu-devel@nongnu.org; Wed, 20 Sep 2017 10:15:01 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from ) id 1dufmE-00058B-2a\n\tfor qemu-devel@nongnu.org; Wed, 20 Sep 2017 10:15:00 -0400","from ozlabs.ru ([107.173.13.209]:59744)\n\tby eggs.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dufmD-00056z-M1\n\tfor qemu-devel@nongnu.org; Wed, 20 Sep 2017 10:14:57 -0400","from vpl1.ozlabs.ibm.com (localhost [IPv6:::1])\n\tby ozlabs.ru (Postfix) with ESMTP id 0A5D23A6004A;\n\tWed, 20 Sep 2017 07:47:57 -0400 (EDT)"],"From":"Alexey Kardashevskiy ","To":"qemu-devel@nongnu.org","Date":"Wed, 20 Sep 2017 21:46:20 +1000","Message-Id":"<20170920114637.42004-2-aik@ozlabs.ru>","X-Mailer":"git-send-email 2.11.0","In-Reply-To":"<20170920114637.42004-1-aik@ozlabs.ru>","References":"<20170920114637.42004-1-aik@ozlabs.ru>","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 3.x [fuzzy]","X-Received-From":"107.173.13.209","Subject":"[Qemu-devel] [PATCH qemu v4 01/18] exec: Explicitly export target\n\tAS from address_space_translate_internal","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"Alexey Kardashevskiy , Paolo Bonzini ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t"},"content":"This adds an AS** parameter to address_space_do_translate()\nto make it easier for the next patch to share FlatViews.\n\nThis should cause no behavioural change.\n\nSigned-off-by: Alexey Kardashevskiy \n---\n exec.c | 11 +++++++----\n 1 file changed, 7 insertions(+), 4 deletions(-)","diff":"diff --git a/exec.c b/exec.c\nindex a25a4c6018..fd8994b25d 100644\n--- a/exec.c\n+++ b/exec.c\n@@ -476,7 +476,8 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,\n hwaddr *xlat,\n hwaddr *plen,\n bool is_write,\n- bool is_mmio)\n+ bool is_mmio,\n+ AddressSpace **target_as)\n {\n IOMMUTLBEntry iotlb;\n MemoryRegionSection *section;\n@@ -503,6 +504,7 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,\n }\n \n as = iotlb.target_as;\n+ *target_as = iotlb.target_as;\n }\n \n *xlat = addr;\n@@ -525,7 +527,7 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,\n \n /* This can never be MMIO. */\n section = address_space_do_translate(as, addr, &xlat, &plen,\n- is_write, false);\n+ is_write, false, &as);\n \n /* Illegal translation */\n if (section.mr == &io_mem_unassigned) {\n@@ -548,7 +550,7 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,\n plen -= 1;\n \n return (IOMMUTLBEntry) {\n- .target_as = section.address_space,\n+ .target_as = as,\n .iova = addr & ~plen,\n .translated_addr = xlat & ~plen,\n .addr_mask = plen,\n@@ -569,7 +571,8 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr,\n MemoryRegionSection section;\n \n /* This can be MMIO, so setup MMIO bit. */\n- section = address_space_do_translate(as, addr, xlat, plen, is_write, true);\n+ section = address_space_do_translate(as, addr, xlat, plen, is_write, true,\n+ &as);\n mr = section.mr;\n \n if (xen_enabled() && memory_access_is_direct(mr, is_write)) {\n","prefixes":["qemu","v4","01/18"]}