From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A47CC2D0F2 for ; Wed, 1 Apr 2020 16:29:35 +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 E3B402063A for ; Wed, 1 Apr 2020 16:29:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3B402063A 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+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34556 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJgFC-0000ny-0Z for qemu-devel@archiver.kernel.org; Wed, 01 Apr 2020 12:29:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33715) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJgE3-0007ja-1W for qemu-devel@nongnu.org; Wed, 01 Apr 2020 12:28:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jJgE1-0000w8-Un for qemu-devel@nongnu.org; Wed, 01 Apr 2020 12:28:22 -0400 Received: from 8.mo4.mail-out.ovh.net ([188.165.33.112]:32836) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jJgE1-0000v6-PY for qemu-devel@nongnu.org; Wed, 01 Apr 2020 12:28:21 -0400 Received: from player716.ha.ovh.net (unknown [10.110.115.229]) by mo4.mail-out.ovh.net (Postfix) with ESMTP id 875C322F1EB for ; Wed, 1 Apr 2020 18:28:19 +0200 (CEST) Received: from kaod.org (82-64-250-170.subs.proxad.net [82.64.250.170]) (Authenticated sender: clg@kaod.org) by player716.ha.ovh.net (Postfix) with ESMTPSA id 286A010F29BD6; Wed, 1 Apr 2020 16:28:13 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Subject: [PATCH v2 0/4] target/ppc: Add support for Radix partition-scoped translation Date: Wed, 1 Apr 2020 18:28:06 +0200 Message-Id: <20200401162810.16254-1-clg@kaod.org> X-Mailer: git-send-email 2.21.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Ovh-Tracer-Id: 13916967274756410342 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduhedrtddvgddutddtucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvufffkffogggtgfesthekredtredtjeenucfhrhhomhepveorughrihgtucfnvgcuifhorghtvghruceotghlgheskhgrohgurdhorhhgqeenucfkpheptddrtddrtddrtddpkedvrdeigedrvdehtddrudejtdenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphdqohhuthdphhgvlhhopehplhgrhigvrhejudeirdhhrgdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomheptghlgheskhgrohgurdhorhhgpdhrtghpthhtohepqhgvmhhuqdguvghvvghlsehnohhnghhnuhdrohhrgh Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 188.165.33.112 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=20Le=20Goater?= , qemu-ppc@nongnu.org, Greg Kurz , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hello, The Radix tree translation model currently supports process-scoped translation for the PowerNV machine (Hypervisor mode) and for the pSeries machine (Guest mode). Guests running under an emulated Hypervisor (PowerNV machine) require a new type of Radix translation, called partition-scoped, which is missing today. The Radix tree translation is a 2 steps process. The first step, process-scoped translation, converts an effective Address to a guest real address, and the second step, partition-scoped translation, converts a guest real address to a host real address. There are difference cases to covers :=20 * Hypervisor real mode access: no Radix translation. * Hypervisor or host application access (quadrant 0 and 3) with relocation on: process-scoped translation. * Guest OS real mode access: only partition-scoped translation. * Guest OS real or guest application access (quadrant 0 and 3) with relocation on: both process-scoped translation and partition-scoped translations. * Hypervisor access in quadrant 1 and 2 with relocation on: both process-scoped translation and partition-scoped translations. The radix tree partition-scoped translation is performed using tables pointed to by the first double-word of the Partition Table Entries and process-scoped translation uses tables pointed to by the Process Table Entries (second double-word of the Partition Table Entries). Both partition-scoped and process-scoped translations process are identical and thus the radix tree traversing code is largely reused. However, errors in partition-scoped translations generate hypervisor exceptions. Based on work from Suraj Jitindar Singh Thanks, C. Changes since v1: - removed checks (cpu->vhyp && lpid =3D=3D 0) - changed ppc_radix64_walk_tree() and ppc_radix64_next_level() to use an 'AddressSpace *' - moved call to ppc_radix64_get_fully_qualified_addr() under ppc_radix64_xlate() - reworked the prototype of the routines raising the exceptions to take a 'cause_excp' bool. - re-introduced an extra test on nls in ppc_radix64_walk_tree() =20 C=C3=A9dric Le Goater (4): target/ppc: Introduce ppc_radix64_xlate() for Radix tree translation target/ppc: Extend ppc_radix64_check_prot() with a 'partition_scoped' bool target/ppc: Rework ppc_radix64_walk_tree() for partition-scoped translation target/ppc: Add support for Radix partition-scoped translation target/ppc/cpu.h | 3 + target/ppc/excp_helper.c | 3 +- target/ppc/mmu-radix64.c | 434 ++++++++++++++++++++++++++++----------- 3 files changed, 319 insertions(+), 121 deletions(-) --=20 2.21.1