From patchwork Wed Sep 18 16:06:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 11150779 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 68AD114E5 for ; Wed, 18 Sep 2019 16:46:50 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 49828218AE for ; Wed, 18 Sep 2019 16:46:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 49828218AE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:60956 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAd6O-000759-O3 for patchwork-qemu-devel@patchwork.kernel.org; Wed, 18 Sep 2019 12:46:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55363) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAcTr-0002hQ-4J for qemu-devel@nongnu.org; Wed, 18 Sep 2019 12:07:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iAcTp-0002XA-8D for qemu-devel@nongnu.org; Wed, 18 Sep 2019 12:06:58 -0400 Received: from 16.mo7.mail-out.ovh.net ([46.105.72.216]:44185) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iAcTp-0002Wi-2S for qemu-devel@nongnu.org; Wed, 18 Sep 2019 12:06:57 -0400 Received: from player799.ha.ovh.net (unknown [10.109.143.201]) by mo7.mail-out.ovh.net (Postfix) with ESMTP id 1826913368F for ; Wed, 18 Sep 2019 18:06:54 +0200 (CEST) Received: from kaod.org (lfbn-1-2240-157.w90-76.abo.wanadoo.fr [90.76.60.157]) (Authenticated sender: clg@kaod.org) by player799.ha.ovh.net (Postfix) with ESMTPSA id E28939F0E32F; Wed, 18 Sep 2019 16:06:49 +0000 (UTC) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: David Gibson Date: Wed, 18 Sep 2019 18:06:20 +0200 Message-Id: <20190918160645.25126-1-clg@kaod.org> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-Ovh-Tracer-Id: 6205397340791147494 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedufedrudekgdeliecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 46.105.72.216 Subject: [Qemu-devel] [PATCH v4 00/25] ppc/pnv: add XIVE support for KVM guests X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?C=C3=A9dric_Le_Goater?= , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Greg Kurz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Hello, The QEMU PowerNV machine emulates a baremetal OpenPOWER system and acts as an hypervisor (L0). Supporting emulation of KVM to run guests (L1) requires a few more extensions, among which guest support for the XIVE interrupt controller on POWER9 processor. The following changes add new per-CPU PowerNV machines and extend the XIVE models with the new XiveFabric and XivePresenter interfaces to provide support for XIVE escalations and interrupt resend. This mechanism is used by XIVE to notify the hypervisor that a vCPU is not dispatched on a HW thread. Tested on a QEMU PowerNV machine and a simple QEMU pseries guest doing network on a local bridge. The XIVE interrupt controller offers a way to increase the XIVE resources per chip by configuring multiple XIVE blocks on a chip. This is not currently supported by the model. However, some configurations, such as OPAL/skiboot, use one block-per-chip configuration with some optimizations. One of them is to override the hardwired chip ID by the block id in the PowerBUS operations and for CAM line compares. This patchset improves the support for this setup. Tested with 4 chips. A series from Suraj adding guest support in the Radix MMU model of the QEMU PowerNV machine is still required and will be send later. The whole patchset can be found under : https://github.com/legoater/qemu/tree/powernv-4.2 Thanks, C. Changes since v3: - reworked the patches introducing the XiveFabric and XivePresenter interfaces - moved the get_block_id() handler to the XiveRouter - new small addons related to the format of the trigger data Changes since v2: - introduced the XiveFabric and XivePresenter interfaces - removed the need of a XiveRouter pointer under XiveTCTX Changes since v1: - minor extra fixes - split the escalation support in different patches - kept the XiveRouter type for XiveTCTX back pointer (will address this in P10) - removed pnv_xive_vst_size(). Really broken on indirect tables. - improved the dump of the NVT table - introduce pnv_xive_get_block_id() Cédric Le Goater (25): ppc/xive: Introduce a XivePresenter interface ppc/xive: Implement the XivePresenter interface ppc/pnv: Introduce a PNV_CHIP_CPU_FOREACH() helper ppc/pnv: Introduce a pnv_xive_is_cpu_enabled() helper ppc/xive: Introduce a XiveFabric interface ppc/pnv: Implement the XiveFabric interface ppc/spapr: Implement the XiveFabric interface ppc/xive: Use the XiveFabric and XivePresenter interfaces ppc/xive: Extend the TIMA operation with a XivePresenter parameter ppc/pnv: Clarify how the TIMA is accessed on a multichip system ppc/xive: Move the TIMA operations to the controller model ppc/xive: Remove the get_tctx() XiveRouter handler ppc/xive: Introduce a xive_tctx_ipb_update() helper ppc/xive: Introduce helpers for the NVT id ppc/xive: Synthesize interrupt from the saved IPB in the NVT ppc/pnv: Remove pnv_xive_vst_size() routine ppc/pnv: Dump the XIVE NVT table ppc/pnv: Skip empty slots of the XIVE NVT table ppc/pnv: Introduce a pnv_xive_block_id() helper ppc/pnv: Extend XiveRouter with a get_block_id() handler ppc/pnv: Quiesce some XIVE errors ppc/xive: Introduce a xive_os_cam_decode() helper ppc/xive: Check V bit in TM_PULL_POOL_CTX ppc/pnv: Improve trigger data definition ppc/pnv: Use the EAS trigger bit when triggering an interrupt from PSI include/hw/ppc/pnv.h | 13 ++ include/hw/ppc/pnv_xive.h | 3 - include/hw/ppc/spapr_irq.h | 6 + include/hw/ppc/xive.h | 72 ++++++-- include/hw/ppc/xive_regs.h | 48 ++++- hw/intc/pnv_xive.c | 370 +++++++++++++++++++++++++------------ hw/intc/spapr_xive.c | 80 +++++++- hw/intc/xive.c | 328 +++++++++++++++++--------------- hw/ppc/pnv.c | 32 ++++ hw/ppc/pnv_psi.c | 15 +- hw/ppc/spapr.c | 34 ++++ hw/ppc/spapr_irq.c | 25 +++ 12 files changed, 730 insertions(+), 296 deletions(-)