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GET /api/patches/812469/?format=api
{ "id": 812469, "url": "http://patchwork.ozlabs.org/api/patches/812469/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170911171235.29331-10-clg@kaod.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "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": "<20170911171235.29331-10-clg@kaod.org>", "list_archive_url": null, "date": "2017-09-11T17:12:23", "name": "[RFC,v2,09/21] ppc/xive: extend the interrupt presenter model for XIVE", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ca81246deb0185613d080b906cfb3949ead6444f", "submitter": { "id": 68548, "url": "http://patchwork.ozlabs.org/api/people/68548/?format=api", "name": "Cédric Le Goater", "email": "clg@kaod.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170911171235.29331-10-clg@kaod.org/mbox/", "series": [ { "id": 2526, "url": "http://patchwork.ozlabs.org/api/series/2526/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=2526", "date": "2017-09-11T17:12:14", "name": "Guest exploitation of the XIVE interrupt controller (POWER9)", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/2526/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/812469/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/812469/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "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=<UNKNOWN>)", "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 3xrZWl0NZ7z9s81\n\tfor <incoming@patchwork.ozlabs.org>;\n\tTue, 12 Sep 2017 03:23:14 +1000 (AEST)", "from localhost ([::1]:59316 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1drSQT-0000B0-3H\n\tfor incoming@patchwork.ozlabs.org; Mon, 11 Sep 2017 13:23:13 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:35196)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <clg@kaod.org>) id 1drSHX-00016I-Gz\n\tfor qemu-devel@nongnu.org; Mon, 11 Sep 2017 13:14:04 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <clg@kaod.org>) id 1drSHT-0004EK-0B\n\tfor qemu-devel@nongnu.org; Mon, 11 Sep 2017 13:13:59 -0400", "from 3.mo2.mail-out.ovh.net ([46.105.58.226]:46402)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <clg@kaod.org>) id 1drSHS-0004DT-Pf\n\tfor qemu-devel@nongnu.org; Mon, 11 Sep 2017 13:13:54 -0400", "from player770.ha.ovh.net (b6.ovh.net [213.186.33.56])\n\tby mo2.mail-out.ovh.net (Postfix) with ESMTP id B5090AB1DC\n\tfor <qemu-devel@nongnu.org>; Mon, 11 Sep 2017 19:13:53 +0200 (CEST)", "from zorba.kaod.org.com (LFbn-1-2231-173.w90-76.abo.wanadoo.fr\n\t[90.76.52.173]) (Authenticated sender: clg@kaod.org)\n\tby player770.ha.ovh.net (Postfix) with ESMTPSA id 835F63C006E;\n\tMon, 11 Sep 2017 19:13:46 +0200 (CEST)" ], "From": "=?utf-8?q?C=C3=A9dric_Le_Goater?= <clg@kaod.org>", "To": "qemu-ppc@nongnu.org, qemu-devel@nongnu.org,\n\tDavid Gibson <david@gibson.dropbear.id.au>,\n\tBenjamin Herrenschmidt <benh@kernel.crashing.org>,\n\tAlexey Kardashevskiy <aik@ozlabs.ru>, Alexander Graf <agraf@suse.de>", "Date": "Mon, 11 Sep 2017 19:12:23 +0200", "Message-Id": "<20170911171235.29331-10-clg@kaod.org>", "X-Mailer": "git-send-email 2.13.5", "In-Reply-To": "<20170911171235.29331-1-clg@kaod.org>", "References": "<20170911171235.29331-1-clg@kaod.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "X-Ovh-Tracer-Id": "14146087907405499219", "X-VR-SPAMSTATE": "OK", "X-VR-SPAMSCORE": "-100", "X-VR-SPAMCAUSE": "gggruggvucftvghtrhhoucdtuddrfeelledrgedtgdduudehucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddm", "Content-Transfer-Encoding": "quoted-printable", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]", "X-Received-From": "46.105.58.226", "Subject": "[Qemu-devel] [RFC PATCH v2 09/21] ppc/xive: extend the interrupt\n\tpresenter model for XIVE", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<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>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "=?utf-8?q?C=C3=A9dric_Le_Goater?= <clg@kaod.org>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "The XIVE interrupt presenter exposes a set of Thread Interrupt\nManagement Areas, also called rings, one per different level of\nprivilege (four in all). This area is used to handle priority\nmanagement and interrupt acknowledgment among other things.\n\nWe extend the ICPState object with a cache of the register data for\nXIVE. The integration with the sPAPR machine is much easier and we\nneed a common framework to switch from one controller model to\nanother: XICS <-> XIVE.\n\nThe next patch will introduce the MMIO handlers to interact with the\nTIMA, OS only, which is required for the sPAPR support.\n\nSigned-off-by: Cédric Le Goater <clg@kaod.org>\n---\n hw/intc/xics.c | 4 ++++\n include/hw/ppc/xics.h | 6 ++++++\n 2 files changed, 10 insertions(+)", "diff": "diff --git a/hw/intc/xics.c b/hw/intc/xics.c\nindex a84ba51ad8ff..927d4fec966a 100644\n--- a/hw/intc/xics.c\n+++ b/hw/intc/xics.c\n@@ -274,6 +274,7 @@ static const VMStateDescription vmstate_icp_server = {\n VMSTATE_UINT32(xirr, ICPState),\n VMSTATE_UINT8(pending_priority, ICPState),\n VMSTATE_UINT8(mfrr, ICPState),\n+ VMSTATE_UINT8_ARRAY(tima, ICPState, 0x40),\n VMSTATE_END_OF_LIST()\n },\n };\n@@ -293,6 +294,7 @@ static void icp_reset(void *dev)\n if (icpc->reset) {\n icpc->reset(icp);\n }\n+ memset(icp->tima, 0, sizeof(icp->tima));\n }\n \n static void icp_realize(DeviceState *dev, Error **errp)\n@@ -343,6 +345,8 @@ static void icp_realize(DeviceState *dev, Error **errp)\n icpc->realize(icp, errp);\n }\n \n+ icp->tima_os = &icp->tima[0x10];\n+\n qemu_register_reset(icp_reset, dev);\n vmstate_register(NULL, icp->cs->cpu_index, &vmstate_icp_server, icp);\n }\ndiff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h\nindex 28d248abad61..c835997303c4 100644\n--- a/include/hw/ppc/xics.h\n+++ b/include/hw/ppc/xics.h\n@@ -83,6 +83,12 @@ struct ICPState {\n qemu_irq output;\n \n XICSFabric *xics;\n+\n+ /* XIVE section */\n+#define XIVE_TM_RING_COUNT 4\n+\n+ uint8_t tima[XIVE_TM_RING_COUNT * 0x10];\n+ uint8_t *tima_os;\n };\n \n #define ICP_PROP_XICS \"xics\"\n", "prefixes": [ "RFC", "v2", "09/21" ] }