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 3F64AC43331 for ; Mon, 30 Mar 2020 09:51:16 +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 0EEEE20714 for ; Mon, 30 Mar 2020 09:51:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0EEEE20714 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]:47178 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIr4d-00023A-6a for qemu-devel@archiver.kernel.org; Mon, 30 Mar 2020 05:51:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42717) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIr3Z-0000QW-Jl for qemu-devel@nongnu.org; Mon, 30 Mar 2020 05:50:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jIr3Y-0005Wv-2H for qemu-devel@nongnu.org; Mon, 30 Mar 2020 05:50:09 -0400 Received: from 3.mo5.mail-out.ovh.net ([46.105.40.108]:59005) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jIr3X-0005TY-O3 for qemu-devel@nongnu.org; Mon, 30 Mar 2020 05:50:08 -0400 Received: from player729.ha.ovh.net (unknown [10.110.103.132]) by mo5.mail-out.ovh.net (Postfix) with ESMTP id 433532744B4 for ; Mon, 30 Mar 2020 11:49:59 +0200 (CEST) Received: from kaod.org (82-64-250-170.subs.proxad.net [82.64.250.170]) (Authenticated sender: clg@kaod.org) by player729.ha.ovh.net (Postfix) with ESMTPSA id 6C50E110F4F99; Mon, 30 Mar 2020 09:49:52 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Subject: [PATCH 0/7] target/ppc: Add support for Radix partition-scoped translation Date: Mon, 30 Mar 2020 11:49:39 +0200 Message-Id: <20200330094946.24678-1-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: 13890790104737156070 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedugedrudeihedgvddtucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvufffkffogggtgfesthekredtredtjeenucfhrhhomhepveorughrihgtucfnvgcuifhorghtvghruceotghlgheskhgrohgurdhorhhgqeenucfkpheptddrtddrtddrtddpkedvrdeigedrvdehtddrudejtdenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphdqohhuthdphhgvlhhopehplhgrhigvrhejvdelrdhhrgdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomheptghlgheskhgrohgurdhorhhgpdhrtghpthhtohepqhgvmhhuqdguvghvvghlsehnohhnghhnuhdrohhrgh Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 46.105.40.108 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 , Nicholas Piggin , 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. C=C3=A9dric Le Goater (6): target/ppc: Introduce a relocation bool in ppc_radix64_handle_mmu_faul= t() target/ppc: Assert if HV mode is set when running under a pseries machi= ne target/ppc: Introduce ppc_radix64_xlate() for Radix tree translation target/ppc: Rework ppc_radix64_walk_tree() for partition-scoped transla= tion target/ppc: Extend ppc_radix64_check_prot() with a 'partition_scoped' b= ool target/ppc: Add support for Radix partition-scoped translation Suraj Jitindar Singh (1): target/ppc: Enforce that the root page directory size must be at least 5 target/ppc/cpu.h | 3 + target/ppc/excp_helper.c | 3 +- target/ppc/mmu-radix64.c | 411 +++++++++++++++++++++++++++++---------- 3 files changed, 308 insertions(+), 109 deletions(-) --=20 2.21.1