From patchwork Thu Mar 7 07:37:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xianglai Li X-Patchwork-Id: 13585139 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 64ABBC54E49 for ; Thu, 7 Mar 2024 07:37:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ri8Jn-0007Ir-Qs; Thu, 07 Mar 2024 02:37:31 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ri8Jh-0007Ba-Ri for qemu-devel@nongnu.org; Thu, 07 Mar 2024 02:37:26 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ri8Jf-00051p-Jw for qemu-devel@nongnu.org; Thu, 07 Mar 2024 02:37:25 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8DxK+mrbullxrAVAA--.35453S3; Thu, 07 Mar 2024 15:37:15 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Dxfs2qbulld+9PAA--.14088S2; Thu, 07 Mar 2024 15:37:14 +0800 (CST) From: Xianglai Li To: qemu-devel@nongnu.org Cc: maobibo@loongson.cn, Song Gao , Xiaojuan Yang , zhaotianrui@loongson.cn Subject: [PATCH V3 0/1] target/loongarch: Fixed tlb huge page loading issue Date: Thu, 7 Mar 2024 15:37:02 +0800 Message-Id: X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Dxfs2qbulld+9PAA--.14088S2 X-CM-SenderInfo: 5ol0xt5qjotxo6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=lixianglai@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org When we use qemu tcg simulation, the page size of bios is 4KB. When using the level 2 super large page (page size is 1G) to create the page table, it is found that the content of the corresponding address space is abnormal, resulting in the bios can not start the operating system and graphical interface normally. The lddir and ldpte instruction emulation has a problem with the use of super large page processing above level 2. The page size is not correctly calculated, resulting in the wrong page size of the table entry found by tlb. Changes log: V2->V3: Delete the intermediate variable LDDIR_PS, and implement lddir and ldpte huge pages by referring to the latest architecture reference manual. V1->V2: Modified the patch title format and Enrich the commit mesg description Cc: maobibo@loongson.cn Cc: Song Gao Cc: Xiaojuan Yang Cc: zhaotianrui@loongson.cn Xianglai Li (1): target/loongarch: Fixed tlb huge page loading issue target/loongarch/internals.h | 8 +++ target/loongarch/tcg/tlb_helper.c | 92 +++++++++++++++++++++++-------- 2 files changed, 76 insertions(+), 24 deletions(-)