From patchwork Sat May 22 15:59:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Martins X-Patchwork-Id: 12274605 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=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 C5592C2B9F2 for ; Sat, 22 May 2021 16:01:05 +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 3185E6109F for ; Sat, 22 May 2021 16:01:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3185E6109F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41446 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lkU3j-000649-VR for qemu-devel@archiver.kernel.org; Sat, 22 May 2021 12:01:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52108) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lkU1t-0005NX-KV; Sat, 22 May 2021 11:59:09 -0400 Received: from mail-wm1-x32f.google.com ([2a00:1450:4864:20::32f]:40453) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lkU1s-0006SR-28; Sat, 22 May 2021 11:59:09 -0400 Received: by mail-wm1-x32f.google.com with SMTP id f6-20020a1c1f060000b0290175ca89f698so9002958wmf.5; Sat, 22 May 2021 08:59:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TvBLNYrKfyjXtRdJiJuel4o4Z8NUFOeu1XgoNZa0swE=; b=N6x6yaX8ZCEGlwSByTK00+UXOn8BvngFR2NeLDoGOQ9Er2FMt7VuD1RZk/ty7nmfra IaNnU0Q2b03+V5PUBcmnrQU7MhFm3QLKGTNM7UkQ2SRDOHx7niWcinAy9NYScJvcjVl1 AiZczW4B3U9nGuMjgm8kILVqvRYbSC8bylZexUQwvHB0FR/AtbTbfXbaL62gD9gx0GFN m8+kUJVVevxZfepFyZxP1w8+lql5v53I7dJ98ccBSnQdowGIOAX18Rfmkx3JCbX/Oi3h ArJqluXNafn2ooGGkqT3tNkB6gyxDCv/9j4Jud8uEOe9uAsEOoTr88tdhFaC/GZlBHrD 1fHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TvBLNYrKfyjXtRdJiJuel4o4Z8NUFOeu1XgoNZa0swE=; b=FLWB+stfF7v7q5f2huuz8miZWQFmwlyuGTOrZcntjwdPsVP//62pOZpJm0Sw4Gdrdf afe67TjmPiNgoIqqqrYOMljVogz+bUmqlt+irUk5LQZtEPlfazYuUGowpqXbN8hvwyKU XUn2H1YGe0S5TJLCzGfP2zPdXB/q+HHPEM2qLgn2syRutvZ3xudSN8kkhBppLk3uWwPr TXi3+mQyA9MqrI1x1uDGl+Btv11n6+k04JsAD9AujUVG0ShRg/yUCJl+Es0YY7UFGzyN ZBNLtcbc1VpdVFWRTScaR155zQ8KhWbt4xkEi3YSx5LIl8XOT/ZVyPp65rcnm39vHMyi kEaQ== X-Gm-Message-State: AOAM530xqNLKXP2GkPtiS7NxthDXvUOk+iJ8tP9dnliRU5eJ1PJOw7Fx Hf4f+juxSQrIGB/OGOOEAvhkkfYW2edWxwoJ X-Google-Smtp-Source: ABdhPJwMFvrAvwMmpmYoRmY6E6bhKHG8qJdtEA9cJRAlH/aALy52k93OSN7/AmKBcHhzAcEXq9B7Ew== X-Received: by 2002:a1c:98c7:: with SMTP id a190mr13466579wme.60.1621699146013; Sat, 22 May 2021 08:59:06 -0700 (PDT) Received: from asus.. ([83.144.169.104]) by smtp.gmail.com with ESMTPSA id i1sm2768599wmb.46.2021.05.22.08.59.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 22 May 2021 08:59:05 -0700 (PDT) From: Jose Martins To: qemu-devel@nongnu.org Subject: [PATCH] target/riscv: hardwire bits in hideleg and hedeleg Date: Sat, 22 May 2021 16:59:02 +0100 Message-Id: <20210522155902.374439-1-josemartins90@gmail.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32f; envelope-from=josemartins90@gmail.com; helo=mail-wm1-x32f.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: "open list:RISC-V TCG CPUs" , Sagar Karandikar , Jose Martins , Bastian Koppelmann , Alistair Francis , Palmer Dabbelt Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The specification mandates for certain bits to be hardwired in the hypervisor delegation registers. This was not being enforced. Signed-off-by: Jose Martins Reviewed-by: LIU Zhiwei Reviewed-by: Alistair Francis --- target/riscv/csr.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index d2585395bf..9b74a00cc9 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -394,6 +394,7 @@ static int read_timeh(CPURISCVState *env, int csrno, target_ulong *val) static const target_ulong delegable_ints = S_MODE_INTERRUPTS | VS_MODE_INTERRUPTS; +static const target_ulong vs_delegable_ints = VS_MODE_INTERRUPTS; static const target_ulong all_ints = M_MODE_INTERRUPTS | S_MODE_INTERRUPTS | VS_MODE_INTERRUPTS; static const target_ulong delegable_excps = @@ -416,6 +417,14 @@ static const target_ulong delegable_excps = (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT)); +static const target_ulong vs_delegable_excps = delegable_excps & + ~((1ULL << (RISCV_EXCP_S_ECALL)) | + (1ULL << (RISCV_EXCP_VS_ECALL)) | + (1ULL << (RISCV_EXCP_M_ECALL)) | + (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) | + (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | + (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | + (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT))); static const target_ulong sstatus_v1_10_mask = SSTATUS_SIE | SSTATUS_SPIE | SSTATUS_UIE | SSTATUS_UPIE | SSTATUS_SPP | SSTATUS_FS | SSTATUS_XS | SSTATUS_SUM | SSTATUS_MXR | SSTATUS_SD; @@ -963,7 +972,7 @@ static int read_hedeleg(CPURISCVState *env, int csrno, target_ulong *val) static int write_hedeleg(CPURISCVState *env, int csrno, target_ulong val) { - env->hedeleg = val; + env->hedeleg = val & vs_delegable_excps; return 0; } @@ -975,7 +984,7 @@ static int read_hideleg(CPURISCVState *env, int csrno, target_ulong *val) static int write_hideleg(CPURISCVState *env, int csrno, target_ulong val) { - env->hideleg = val; + env->hideleg = val & vs_delegable_ints; return 0; }