From patchwork Fri Sep 8 18:26:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Baturo X-Patchwork-Id: 1831708 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20221208 header.b=IKQAjqlD; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Rj4NR0b97z1yh5 for ; Sat, 9 Sep 2023 04:27:51 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qegCA-0003Pb-1k; Fri, 08 Sep 2023 14:27:06 -0400 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 1qegC8-0003Oq-EK; Fri, 08 Sep 2023 14:27:04 -0400 Received: from mail-lf1-x12a.google.com ([2a00:1450:4864:20::12a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qegC3-0006ns-6I; Fri, 08 Sep 2023 14:27:04 -0400 Received: by mail-lf1-x12a.google.com with SMTP id 2adb3069b0e04-502984f5018so2533881e87.3; Fri, 08 Sep 2023 11:26:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1694197617; x=1694802417; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hSnKnntUSxBU7tUlgLlxTEaVSJhv9rxElrcBfEB0buQ=; b=IKQAjqlDJ9hizjSYboYiaX3yXZFkdwZsb30SfjLisSX7NOPSlsAGFgFU9WHRQL/It3 Zyoiz1JWSxgtgRYu1FzRnEX61+Kdk0KhspbMFObfCmQL+q89F7F3oeA6eTq5Ykvblepm nX3Axc04bLQzMlYHjpFJJzsg8hqyuwpotQXltTyzCEQbTpZEoj+fjGcVKaUWkmRkUQe9 3y2/AxDrXFDP8QMN0Oo//XbtQAUDJ4rA0T3kXoKofyt8Y3h8vXY7/7WuKca5gJ07+uTY bq2aLagQnMSjkCZ+dl207DnfRgSYLAQKDLDyLb3jQ14c1ksvv28owSWKbLiR1oALKKB+ RERA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694197617; x=1694802417; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hSnKnntUSxBU7tUlgLlxTEaVSJhv9rxElrcBfEB0buQ=; b=d0zUlJ22DinP2L+UD0e6uyNmhF5+ddtuWBSfQWuKb8LU6aJzWjfv9O8BUmr1cux9C6 ffHLK7PwqhT+CljMiomlrdXrP06bVpYo8Er/2RTXdNMjOIrbx9IirendrUx9Rllv+Era aEr3PV5SUGE94pCSWmF2JFcVpCXGyfB/WiYrJlKGCbeHjnV8IuEhioPuXuFztT1eJ5HJ tEToYObUkcqnc0GYWad4zC57+lsYq0tOdWPFWhBLSZGgfJ5IaqDlZS6F1cN8SSgqWL/X vKRP0BP1lxcZLlRLMBu7KndvzCvt81OsIKqvIro6ZOAZCxA4SkRZpzdT+6LE29E8TRz8 FRnw== X-Gm-Message-State: AOJu0YwyQz9qMEODtfKKeSUwFSfRRwjmodxpkpojmF+GZqfq61ifpEue 78cE32iMaw247flpJ63pagA/AOgRVmgvhA== X-Google-Smtp-Source: AGHT+IFHa8xEdDOLiNG1JdjAOpGbydeCODXHcolXK7trc8FNonf8bWY2Bzdn+AHelaoT6bsxGi57aw== X-Received: by 2002:ac2:4bca:0:b0:500:b88c:ea79 with SMTP id o10-20020ac24bca000000b00500b88cea79mr2685756lfq.54.1694197617033; Fri, 08 Sep 2023 11:26:57 -0700 (PDT) Received: from freya.midgard (broadband-188-255-126-251.ip.moscow.rt.ru. [188.255.126.251]) by smtp.gmail.com with ESMTPSA id cb22-20020a170906a45600b0099d804da2e9sm1342667ejb.225.2023.09.08.11.26.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Sep 2023 11:26:56 -0700 (PDT) From: Alexey Baturo To: Cc: baturo.alexey@gmail.com, richard.henderson@linaro.org, palmer@dabbelt.com, Alistair.Francis@wdc.com, zhiwei_liu@linux.alibaba.com, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de, qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v1 7/8] target/riscv: Update address modify functions to take into account pointer masking Date: Fri, 8 Sep 2023 18:26:39 +0000 Message-Id: <20230908182640.1102270-8-baturo.alexey@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230908182640.1102270-1-baturo.alexey@gmail.com> References: <20230908182640.1102270-1-baturo.alexey@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::12a; envelope-from=baturo.alexey@gmail.com; helo=mail-lf1-x12a.google.com X-Spam_score_int: -7 X-Spam_score: -0.8 X-Spam_bar: / X-Spam_report: (-0.8 / 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_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, TVD_PH_SUBJ_META1=1.249, T_SPF_HELO_TEMPERROR=0.01 autolearn=no 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Alexey Baturo --- target/riscv/translate.c | 21 +++++++++++++++++++-- target/riscv/vector_helper.c | 7 +++++++ 2 files changed, 26 insertions(+), 2 deletions(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 3434ba58b6..4aa0e2b9e1 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -581,7 +581,15 @@ static TCGv get_address(DisasContext *ctx, int rs1, int imm) TCGv src1 = get_gpr(ctx, rs1, EXT_NONE); tcg_gen_addi_tl(addr, src1, imm); - if (get_address_xl(ctx) == MXL_RV32) { + if (ctx->pm_enabled) { + tcg_gen_shl_tl(addr, addr, pm_n_bits); + /* sign extend address by first non-masked bit otherwise zero extend */ + if (ctx->pm_signext) { + tcg_gen_sar_tl(addr, addr, pm_n_bits); + } else { + tcg_gen_shr_tl(addr, addr, pm_n_bits); + } + } else if (get_address_xl(ctx) == MXL_RV32) { tcg_gen_ext32u_tl(addr, addr); } @@ -595,7 +603,16 @@ static TCGv get_address_indexed(DisasContext *ctx, int rs1, TCGv offs) TCGv src1 = get_gpr(ctx, rs1, EXT_NONE); tcg_gen_add_tl(addr, src1, offs); - if (get_xl(ctx) == MXL_RV32) { + /* sign extend address by first non-masked bit */ + if (ctx->pm_enabled) { + tcg_gen_shl_tl(addr, addr, pm_n_bits); + /* sign extend address by first non-masked bit otherwise zero extend */ + if (ctx->pm_signext) { + tcg_gen_sar_tl(addr, addr, pm_n_bits); + } else { + tcg_gen_shr_tl(addr, addr, pm_n_bits); + } + } else if (get_xl(ctx) == MXL_RV32) { tcg_gen_ext32u_tl(addr, addr); } return addr; diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index af07e1067d..d3ddc2fd41 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -169,6 +169,13 @@ static inline uint32_t vext_get_total_elems(CPURISCVState *env, uint32_t desc, static inline target_ulong adjust_addr(CPURISCVState *env, target_ulong addr) { + addr = addr << env->pm_n_bits; + /* sign/zero extend masked address by N-1 bit */ + if (env->pm_signext) { + addr = (target_long)addr >> env->pm_n_bits; + } else { + addr = addr >> env->pm_n_bits; + } return addr; }