From nobody Fri Apr 19 00:18:13 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1602886497; cv=none; d=zohomail.com; s=zohoarc; b=kVDlvsfC0TlFOZ7awga1lSg/USJU5hpZHKkwkHlf8IlAdLILKy4Qg6CJuPtMERmpq3ToE2n6SW/wncn8LLb41mjjKQ3PaHcyYWxSWyfSjQzNsb4U4CRMF9CmcIEylHgeVIZ5f8GLuLok6tj3T5ABOKz3jM15bCSnYo70rUkpT1k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602886497; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject; bh=aJ0KQb6Ozzm+TKAEStsx77t+LpGGqIZVP5UuxdMy3MY=; b=Zee6182CHQHWyvXsn4T/3mcfZrFZkNX0jaEFbLf9GuGFZ3u0dlXI7yADkQXu4XsBlJyFriZ91MCV6O9tLXoZB1a4FU8hXQdzXPuKQsJXRZ7i3akMBKPU7tmZ5pYRVa/LM4yCzUYsQ/gsudhRkCfeRQGthpbcIXLaTsdtC0jlIXY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602886497447729.8275183331257; Fri, 16 Oct 2020 15:14:57 -0700 (PDT) Received: from localhost ([::1]:57854 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTXzz-0004my-Sw for importer@patchew.org; Fri, 16 Oct 2020 18:14:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48816) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTXx4-00034O-Jl; Fri, 16 Oct 2020 18:11:54 -0400 Received: from mail-lf1-x144.google.com ([2a00:1450:4864:20::144]:43618) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTXwy-0004GR-H4; Fri, 16 Oct 2020 18:11:54 -0400 Received: by mail-lf1-x144.google.com with SMTP id l28so5025961lfp.10; Fri, 16 Oct 2020 15:11:47 -0700 (PDT) Received: from neptune.lab ([46.39.229.194]) by smtp.googlemail.com with ESMTPSA id d6sm1303010lja.63.2020.10.16.15.11.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 15:11:45 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=aJ0KQb6Ozzm+TKAEStsx77t+LpGGqIZVP5UuxdMy3MY=; b=dLscBUay8jZmMRDkIZgveyHLORRGr3jd4+ziQkEZP40prXEhAkiwEq1lpKG3eFlQBh Cyg6pwXdeIfsX5pA1oczcxnE8OjQBgl2V8uMghm50QfYpaPMTXw7/+6NoSgiTIW5DRCz zV1UJRuwYRncJ3gs+0sRfqSDIxDf2wDVb5RI0vDztBdxD/Vj81nKxUxRruCat9Jh1rPn +XSsWltJTNP/K9R/IGKCXad5eMfBE/LdxnztxuAxAUEZSQlfbPVIpHtkbN1PM7r7D/lq GhVc4ePKZuoutCb0fryEuN3lpJVOwYMx4FYvae4Tt7Z/VVwYlyNTFR9njSVbrpA4W1Im Vklg== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=aJ0KQb6Ozzm+TKAEStsx77t+LpGGqIZVP5UuxdMy3MY=; b=IXgeNLXY4qaNXBQySxxB9f1fr5u+IQj6/KlKZhrr7sqG8CaFPC6NBke1OwTQgaCoZ2 bt6x8sP7/JtJHpmvwCxvFNIMioDwtI+bUNjlVkypwl8Qh3x4JL/p0wQQ3DZzdr3a8v7F NNWnjJnczmJtdVMBixhtNJ+ZhIa9ac4kvShnp/zu/YxTzo3M401brG/IctDfG9a9+4U7 8bjmjDPZDLbK3OpGYzJ0NIVYgFKjiOGPSsAp0taH7vLi738/tZujgfYwIrbFSQyjkK6H q7EUKTyuUpuI4fNlarjAVJI1gRSMYWwRjUvLJU/iKn8wptKH9+G16bUmi9I5Z1iGYZas cVWQ== X-Gm-Message-State: AOAM531oS6JBuKKJd6StpLYUQoJVxlFNXRV57eobvUVYdAOFPVpNOYkP /rOYNhkYVm24cxaEQ0HJzIQ= X-Google-Smtp-Source: ABdhPJyufgTX9zcqWAKlbqgvFmqJ9xw1ZPZgZObXHUImkRucsLX7dAkzGuogF6A7oEQxiU2XvVKg4w== X-Received: by 2002:a19:8d0:: with SMTP id 199mr2358212lfi.529.1602886305584; Fri, 16 Oct 2020 15:11:45 -0700 (PDT) From: Alexey Baturo X-Google-Original-From: Alexey Baturo To: Subject: [PATCH v3 1/5] [RISCV_PM] Add J-extension into RISC-V Date: Sat, 17 Oct 2020 01:11:33 +0300 Message-Id: <20201016221138.10371-2-space.monkey.delivers@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201016221138.10371-1-space.monkey.delivers@gmail.com> References: <20201016221138.10371-1-space.monkey.delivers@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::144; envelope-from=baturo.alexey@gmail.com; helo=mail-lf1-x144.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_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: baturo.alexey@gmail.com, qemu-riscv@nongnu.org, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de, richard.henderson@linaro.org, qemu-devel@nongnu.org, space.monkey.delivers@gmail.com, Alistair.Francis@wdc.com, kupokupokupopo@gmail.com, palmer@dabbelt.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Alexey Baturo Reviewed-by: Richard Henderson --- target/riscv/cpu.c | 4 ++++ target/riscv/cpu.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 0bbfd7f457..fe6bab4a52 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -438,6 +438,9 @@ static void riscv_cpu_realize(DeviceState *dev, Error *= *errp) if (cpu->cfg.ext_h) { target_misa |=3D RVH; } + if (cpu->cfg.ext_j) { + target_misa |=3D RVJ; + } if (cpu->cfg.ext_v) { target_misa |=3D RVV; if (!is_power_of_2(cpu->cfg.vlen)) { @@ -516,6 +519,7 @@ static Property riscv_cpu_properties[] =3D { DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true), /* This is experimental so mark with 'x-' */ DEFINE_PROP_BOOL("x-h", RISCVCPU, cfg.ext_h, false), + DEFINE_PROP_BOOL("x-j", RISCVCPU, cfg.ext_j, false), DEFINE_PROP_BOOL("x-v", RISCVCPU, cfg.ext_v, false), DEFINE_PROP_BOOL("Counters", RISCVCPU, cfg.ext_counters, true), DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true), diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index de275782e6..eca611a367 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -66,6 +66,7 @@ #define RVS RV('S') #define RVU RV('U') #define RVH RV('H') +#define RVJ RV('J') =20 /* S extension denotes that Supervisor mode exists, however it is possible to have a core that support S mode but does not have an MMU and there @@ -277,6 +278,7 @@ struct RISCVCPU { bool ext_s; bool ext_u; bool ext_h; + bool ext_j; bool ext_v; bool ext_counters; bool ext_ifencei; --=20 2.20.1 From nobody Fri Apr 19 00:18:13 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1602886505; cv=none; d=zohomail.com; s=zohoarc; b=Hje/EYc2R2EsZPubY2mylq22mMJgBQoK5I2B/2ai2VqHfvAzIyQ5s+GxU/pUY7fiHiiiu76GQ11nGaTlsnoVff2ghN4HYf86FPMpK6E7gy4F4Gm6VDi7vyX0/42yq7kVh7Vmn/tWFG/QVoIa+RLchps/6026swqqajitmv1yGqc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602886505; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject; bh=Wt+5cPOTAhLR/8SAEbr5qI8BUM2rW+CE2p6xuXrlpoc=; 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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_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: baturo.alexey@gmail.com, qemu-riscv@nongnu.org, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de, richard.henderson@linaro.org, qemu-devel@nongnu.org, space.monkey.delivers@gmail.com, Alistair.Francis@wdc.com, kupokupokupopo@gmail.com, palmer@dabbelt.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Alexey Baturo Acked-by: Richard Henderson --- target/riscv/cpu.c | 1 + target/riscv/cpu.h | 11 ++ target/riscv/cpu_bits.h | 66 ++++++++++ target/riscv/csr.c | 264 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 342 insertions(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index fe6bab4a52..d63031eb08 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -440,6 +440,7 @@ static void riscv_cpu_realize(DeviceState *dev, Error *= *errp) } if (cpu->cfg.ext_j) { target_misa |=3D RVJ; + env->mmte |=3D PM_EXT_INITIAL; } if (cpu->cfg.ext_v) { target_misa |=3D RVV; diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index eca611a367..21e47b8283 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -226,6 +226,17 @@ struct CPURISCVState { =20 /* True if in debugger mode. */ bool debugger; + + /* CSRs for PM + * TODO: move these csr to appropriate groups + */ + target_ulong mmte; + target_ulong mpmmask; + target_ulong mpmbase; + target_ulong spmmask; + target_ulong spmbase; + target_ulong upmmask; + target_ulong upmbase; #endif =20 float_status fp_status; diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index bd36062877..84c93c77ae 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -354,6 +354,21 @@ #define CSR_MHPMCOUNTER30H 0xb9e #define CSR_MHPMCOUNTER31H 0xb9f =20 +/* Custom user register */ +#define CSR_UMTE 0x8c0 +#define CSR_UPMMASK 0x8c1 +#define CSR_UPMBASE 0x8c2 + +/* Custom machine register */ +#define CSR_MMTE 0x7c0 +#define CSR_MPMMASK 0x7c1 +#define CSR_MPMBASE 0x7c2 + +/* Custom supervisor register */ +#define CSR_SMTE 0x9c0 +#define CSR_SPMMASK 0x9c1 +#define CSR_SPMBASE 0x9c2 + /* Legacy Machine Protection and Translation (priv v1.9.1) */ #define CSR_MBASE 0x380 #define CSR_MBOUND 0x381 @@ -604,4 +619,55 @@ #define MIE_UTIE (1 << IRQ_U_TIMER) #define MIE_SSIE (1 << IRQ_S_SOFT) #define MIE_USIE (1 << IRQ_U_SOFT) + +/* general mte CSR bits*/ +#define PM_ENABLE 0x00000001ULL +#define PM_CURRENT 0x00000002ULL +#define PM_XS_MASK 0x00000003ULL + +/* PM XS bits values */ +#define PM_EXT_DISABLE 0x00000000ULL +#define PM_EXT_INITIAL 0x00000001ULL +#define PM_EXT_CLEAN 0x00000002ULL +#define PM_EXT_DIRTY 0x00000003ULL + +/* offsets for every pair of control bits per each priv level */ +#define XS_OFFSET 0ULL +#define U_OFFSET 2ULL +#define S_OFFSET 4ULL +#define M_OFFSET 6ULL + +#define PM_XS_BITS (PM_XS_MASK << XS_OFFSET) +#define U_PM_ENABLE (PM_ENABLE << U_OFFSET) +#define U_PM_CURRENT (PM_CURRENT << U_OFFSET) +#define S_PM_ENABLE (PM_ENABLE << S_OFFSET) +#define S_PM_CURRENT (PM_CURRENT << S_OFFSET) +#define M_PM_ENABLE (PM_ENABLE << M_OFFSET) + +/* mmte CSR bits */ +#define MMTE_PM_XS_BITS PM_XS_BITS +#define MMTE_U_PM_ENABLE U_PM_ENABLE +#define MMTE_U_PM_CURRENT U_PM_CURRENT +#define MMTE_S_PM_ENABLE S_PM_ENABLE +#define MMTE_S_PM_CURRENT S_PM_CURRENT +#define MMTE_M_PM_ENABLE M_PM_ENABLE +#define MMTE_MASK (MMTE_U_PM_ENABLE | MMTE_U_PM_CURRENT | \ + MMTE_S_PM_ENABLE | MMTE_S_PM_CURRENT | \ + MMTE_M_PM_ENABLE | MMTE_PM_XS_BITS) + +/* smte CSR bits */ +#define SMTE_PM_XS_BITS PM_XS_BITS +#define SMTE_U_PM_ENABLE U_PM_ENABLE +#define SMTE_U_PM_CURRENT U_PM_CURRENT +#define SMTE_S_PM_ENABLE S_PM_ENABLE +#define SMTE_S_PM_CURRENT S_PM_CURRENT +#define SMTE_MASK (SMTE_U_PM_ENABLE | SMTE_U_PM_CURRENT | \ + SMTE_S_PM_ENABLE | SMTE_S_PM_CURRENT | \ + SMTE_PM_XS_BITS) + +/* umte CSR bits */ +#define UMTE_U_PM_ENABLE U_PM_ENABLE +#define UMTE_U_PM_CURRENT U_PM_CURRENT +#define UMTE_MASK (UMTE_U_PM_ENABLE | MMTE_U_PM_CURRENT) + #endif diff --git a/target/riscv/csr.c b/target/riscv/csr.c index aaef6c6f20..8679b5c80c 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -140,6 +140,11 @@ static int any(CPURISCVState *env, int csrno) return 0; } =20 +static int umode(CPURISCVState *env, int csrno) +{ + return -!riscv_has_ext(env, RVU); +} + static int smode(CPURISCVState *env, int csrno) { return -!riscv_has_ext(env, RVS); @@ -1250,6 +1255,250 @@ static int write_pmpaddr(CPURISCVState *env, int cs= rno, target_ulong val) return 0; } =20 +/* Functions to access Pointer Masking feature registers=20 + * We have to check if current priv lvl could modify + * csr in given mode + */ +static int check_pm_current_disabled(CPURISCVState *env, int csrno) +{ + int csr_priv =3D get_field(csrno, 0xC00); + /* If priv lvls differ that means we're accessing csr from higher priv= lvl, so allow */ + if (env->priv !=3D csr_priv) { + return 0; + } + int cur_bit_pos; + switch (env->priv) { + case PRV_M: + /* m-mode is always allowed to modify registers, so allow */ + return 0; + case PRV_S: + cur_bit_pos =3D S_PM_CURRENT; + break; + case PRV_U: + cur_bit_pos =3D U_PM_CURRENT; + break; + default: + g_assert_not_reached(); + } + int pm_current =3D get_field(env->mmte, cur_bit_pos); + /* We're in same priv lvl, so we allow to modify csr only if pm_curren= t=3D=3D1 */ + return !pm_current; +} + +static int read_mmte(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + *val =3D 0; + return 0; + } + *val =3D env->mmte & MMTE_MASK; + return 0; +} + +static int write_mmte(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + target_ulong wpri_val =3D val & MMTE_MASK; + if (val !=3D wpri_val) { + qemu_log_mask(LOG_GUEST_ERROR, + "MMTE: WPRI violation written 0x%lx vs expected 0x%l= x\n", val, wpri_val); + } + env->mmte =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} + +static int read_smte(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + *val =3D 0; + return 0; + } + *val =3D env->mmte & SMTE_MASK; + return 0; +} + +static int write_smte(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + target_ulong wpri_val =3D val & SMTE_MASK; + if (val !=3D wpri_val) { + qemu_log_mask(LOG_GUEST_ERROR, + "SMTE: WPRI violation written 0x%lx vs expected 0x%l= x\n", val, wpri_val); + } + if (check_pm_current_disabled(env, csrno)) { + return 0; + } + target_ulong new_val =3D val | (env->mmte & ~SMTE_MASK); + write_mmte(env, csrno, new_val); + return 0; +} + +static int read_umte(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + *val =3D 0; + return 0; + } + *val =3D env->mmte & UMTE_MASK; + return 0; +} + +static int write_umte(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + target_ulong wpri_val =3D val & UMTE_MASK; + assert(val =3D=3D wpri_val); + if (val !=3D wpri_val) { + qemu_log_mask(LOG_GUEST_ERROR, + "UMTE: WPRI violation written 0x%lx vs expected 0x%l= x\n", val, wpri_val); + } + if (check_pm_current_disabled(env, csrno)) { + return 0; + } + target_ulong new_val =3D val | (env->mmte & ~UMTE_MASK); + write_mmte(env, csrno, new_val); + return 0; +} + +static int read_mpmmask(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + *val =3D env->mpmmask; + return 0; +} + +static int write_mpmmask(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + env->mpmmask =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} + +static int read_spmmask(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + *val =3D env->spmmask; + return 0; +} + +static int write_spmmask(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + if (check_pm_current_disabled(env, csrno)) { + return 0; + } + env->spmmask =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} + +static int read_upmmask(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + *val =3D env->upmmask; + return 0; +} + +static int write_upmmask(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + if (check_pm_current_disabled(env, csrno)) { + return 0; + } + env->upmmask =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} + +static int read_mpmbase(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + *val =3D env->mpmbase; + return 0; +} + +static int write_mpmbase(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + env->mpmbase =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} + +static int read_spmbase(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + *val =3D env->spmbase; + return 0; +} + +static int write_spmbase(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + if (check_pm_current_disabled(env, csrno)) { + return 0; + } + env->spmbase =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} + +static int read_upmbase(CPURISCVState *env, int csrno, target_ulong *val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + *val =3D env->upmbase; + return 0; +} + +static int write_upmbase(CPURISCVState *env, int csrno, target_ulong val) +{ + if (!riscv_has_ext(env, RVJ)) { + return -RISCV_EXCP_ILLEGAL_INST; + } + if (check_pm_current_disabled(env, csrno)) { + return 0; + } + env->upmbase =3D val; + env->mstatus |=3D MSTATUS_XS | MSTATUS_SD; + env->mmte |=3D PM_EXT_DIRTY; + return 0; +} #endif =20 /* @@ -1471,6 +1720,21 @@ static riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = =3D { [CSR_PMPCFG0 ... CSR_PMPCFG3] =3D { pmp, read_pmpcfg, write_pmpc= fg }, [CSR_PMPADDR0 ... CSR_PMPADDR15] =3D { pmp, read_pmpaddr, write_pmpa= ddr }, =20 + /* User Pointer Masking */ + [CSR_UMTE] =3D { umode, read_umte, write_umte = }, + [CSR_UPMMASK] =3D { umode, read_upmmask, write_upmmas= k }, + [CSR_UPMBASE] =3D { umode, read_upmbase, write_upmbas= e }, + + /* Machine Pointer Masking */ + [CSR_MMTE] =3D { any, read_mmte, write_mmte = }, + [CSR_MPMMASK] =3D { any, read_mpmmask, write_mpmmask = }, + [CSR_MPMBASE] =3D { any, read_mpmbase, write_mpmbase = }, + + /* Supervisor Pointer Masking */ + [CSR_SMTE] =3D { smode, read_smte, write_smte = }, + [CSR_SPMMASK] =3D { smode, read_spmmask, write_spmmask= }, + [CSR_SPMBASE] =3D { smode, read_spmbase, write_spmbase= }, + /* Performance Counters */ [CSR_HPMCOUNTER3 ... CSR_HPMCOUNTER31] =3D { ctr, read_zero = }, [CSR_MHPMCOUNTER3 ... CSR_MHPMCOUNTER31] =3D { any, read_zero = }, --=20 2.20.1 From nobody Fri Apr 19 00:18:13 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1602886774; cv=none; d=zohomail.com; s=zohoarc; b=I8agxenXTzid11LbEXr8mkM6fkjvAfkvvVJcq9g2HTPFDZvrMBq04esk/eOMxwybqAz3jznJbqS1YVbpgucy6r3dvKGSi7Bxh9InfCsiA5MyyjXCWqlW0UkqYZaamPxetpnmA4DkROB+dVHwofh3h7oUMmvQDfhYabfSb9UsmXg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602886774; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject; bh=+5eiH3n+bCt0Dpm1Jhk3VQr3ezZvJ5rxkkrpSjvz9lY=; b=gZqGuQbWTqGFOd/n4LEzo+D3rp7qQCFTkEJlQTw/FzglHXD8HKzIqiaXJJM4hnuMKUBiTvX8SdmCrLtG4FuqE69KNjigwRi4wzQnAo0yYY/e8TdjS/V1yOUIZ3nRXsQWZv8F71hUaDxevCMbAMXJjHoP6Zdi46XXtYwndiymy1E= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602886774605931.4021474365204; Fri, 16 Oct 2020 15:19:34 -0700 (PDT) Received: from localhost ([::1]:37558 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTY4T-0008Eu-F6 for importer@patchew.org; Fri, 16 Oct 2020 18:19:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48878) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTXxE-00038K-B3; Fri, 16 Oct 2020 18:12:07 -0400 Received: from mail-lf1-x141.google.com ([2a00:1450:4864:20::141]:45974) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTXx4-0004HA-Ir; Fri, 16 Oct 2020 18:12:04 -0400 Received: by mail-lf1-x141.google.com with SMTP id r127so5002803lff.12; Fri, 16 Oct 2020 15:11:49 -0700 (PDT) Received: from neptune.lab ([46.39.229.194]) by smtp.googlemail.com with ESMTPSA id d6sm1303010lja.63.2020.10.16.15.11.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 15:11:47 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=+5eiH3n+bCt0Dpm1Jhk3VQr3ezZvJ5rxkkrpSjvz9lY=; b=FIBF/OMk0VuCk9kQ9mt+jkxJ7MJ3V8ufhbLOKlvnhzr4UuINDDeY551W/GVp2hepOh NmMshQUXujQv0IKQ3I6sXrikPnJ97Y7gIuHBB/FjKcR8jGoiwQJ2WA8Mc0OSgDjDP7zg hr9kqir0elvGi/iB6/eJmV2l1pugtHqyrvO1All13L0K2zi3lRjH2aCqxEMExjIh+EDY d0qz8i6IhF3d/gaUzmhxJDYkNxtEN65AQg6Wp9PzINFBEhEBtFF7H3I2g52bmAl7eraL shW46uqp4/fk8AAUxKlMXbk3uBCw/KRwWhaH06FNEt7NKHaIl2NXCzpDx2XpSEGR0aCF LDLg== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=+5eiH3n+bCt0Dpm1Jhk3VQr3ezZvJ5rxkkrpSjvz9lY=; b=A13t9wz76dPeTDWwlWoVnDUv48kZTfWAk+L+afKqgwgDk2SyyaTcR5G5bmZzWiIbJr uf6/EdyZVBrMhyJYB26/EZKwQ9DZiTVsL7FayAL071mmx63vZXqeM7xKuT7i1MhJFZ1j a2pyRnJxg7CecnjFIwGiTKO/m583WTkhTUxKlDdgReuYS6GtT+xRQ94gPaUDhoQQ3hD4 s87hvS95zAmNOe+ruhhXI1Ch3jNrZqnFotfUZAXsgJVKHij2CEX7+K+dL+hQPsyVibbn hPMZJQPVYRoEQQBSEYPByNNq+NkvjokxoHDtXPuCC+iS/MWXAPdC7REnOP27NSkhSu3h 9LmA== X-Gm-Message-State: AOAM532QB2Zd4nHMWFQc2NaycR/ckf2ziVIW8V8005pdQRzsgJ4GrrMz J7u3GE2rgpvXzHZwL9Z3s5U= X-Google-Smtp-Source: ABdhPJypn/jWwrxi9yUUqSxVwYsxhun1arEvEQLKE1wQ7wHS70l3ngkN2lmINdn9jwoRSyuQVKgDOw== X-Received: by 2002:a19:8181:: with SMTP id c123mr2018996lfd.51.1602886308003; Fri, 16 Oct 2020 15:11:48 -0700 (PDT) From: Alexey Baturo X-Google-Original-From: Alexey Baturo To: Subject: [PATCH v3 3/5] [RISCV_PM] Print new PM CSRs in QEMU logs Date: Sat, 17 Oct 2020 01:11:35 +0300 Message-Id: <20201016221138.10371-4-space.monkey.delivers@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201016221138.10371-1-space.monkey.delivers@gmail.com> References: <20201016221138.10371-1-space.monkey.delivers@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::141; envelope-from=baturo.alexey@gmail.com; helo=mail-lf1-x141.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_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: baturo.alexey@gmail.com, qemu-riscv@nongnu.org, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de, richard.henderson@linaro.org, qemu-devel@nongnu.org, space.monkey.delivers@gmail.com, Alistair.Francis@wdc.com, kupokupokupopo@gmail.com, palmer@dabbelt.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Alexey Baturo Reviewed-by: Richard Henderson --- target/riscv/cpu.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index d63031eb08..6ba3e98508 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -255,6 +255,25 @@ static void riscv_cpu_dump_state(CPUState *cs, FILE *f= , int flags) qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "htval ", env->htval); qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtval2 ", env->mtval2); } + if (riscv_has_ext(env, RVJ)) { + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mmte ", env->mmte); + switch (env->priv) { + case PRV_U: + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "upmbase ", env->up= mbase); + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "upmmask ", env->up= mmask); + break; + case PRV_S: + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "spmbase ", env->sp= mbase); + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "spmmask ", env->sp= mmask); + break; + case PRV_M: + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mpmbase ", env->mp= mbase); + qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mpmmask ", env->mp= mmask); + break; + default: + assert(0 && "Unreachable"); + } + } #endif =20 for (i =3D 0; i < 32; i++) { --=20 2.20.1 From nobody Fri Apr 19 00:18:13 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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Fri, 16 Oct 2020 15:11:48 -0700 (PDT) From: Alexey Baturo X-Google-Original-From: Alexey Baturo To: Subject: [PATCH v3 4/5] [RISCV_PM] Support pointer masking for RISC-V for i/c/f/d/a types of instructions Date: Sat, 17 Oct 2020 01:11:36 +0300 Message-Id: <20201016221138.10371-5-space.monkey.delivers@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201016221138.10371-1-space.monkey.delivers@gmail.com> References: <20201016221138.10371-1-space.monkey.delivers@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::12e; envelope-from=baturo.alexey@gmail.com; helo=mail-lf1-x12e.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 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, GAPPY_SUBJECT=0.1, 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: baturo.alexey@gmail.com, qemu-riscv@nongnu.org, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de, richard.henderson@linaro.org, qemu-devel@nongnu.org, space.monkey.delivers@gmail.com, Alistair.Francis@wdc.com, kupokupokupopo@gmail.com, palmer@dabbelt.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Alexey Baturo Reviewed-by: Richard Henderson --- target/riscv/insn_trans/trans_rva.c.inc | 3 +++ target/riscv/insn_trans/trans_rvd.c.inc | 2 ++ target/riscv/insn_trans/trans_rvf.c.inc | 2 ++ target/riscv/insn_trans/trans_rvi.c.inc | 2 ++ target/riscv/translate.c | 14 ++++++++++++++ 5 files changed, 23 insertions(+) diff --git a/target/riscv/insn_trans/trans_rva.c.inc b/target/riscv/insn_tr= ans/trans_rva.c.inc index be8a9f06dd..5559e347ba 100644 --- a/target/riscv/insn_trans/trans_rva.c.inc +++ b/target/riscv/insn_trans/trans_rva.c.inc @@ -26,6 +26,7 @@ static inline bool gen_lr(DisasContext *ctx, arg_atomic *= a, MemOp mop) if (a->rl) { tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL); } + gen_pm_adjust_address(ctx, src1, src1); tcg_gen_qemu_ld_tl(load_val, src1, ctx->mem_idx, mop); if (a->aq) { tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ); @@ -46,6 +47,7 @@ static inline bool gen_sc(DisasContext *ctx, arg_atomic *= a, MemOp mop) TCGLabel *l2 =3D gen_new_label(); =20 gen_get_gpr(src1, a->rs1); + gen_pm_adjust_address(ctx, src1, src1); tcg_gen_brcond_tl(TCG_COND_NE, load_res, src1, l1); =20 gen_get_gpr(src2, a->rs2); @@ -91,6 +93,7 @@ static bool gen_amo(DisasContext *ctx, arg_atomic *a, gen_get_gpr(src1, a->rs1); gen_get_gpr(src2, a->rs2); =20 + gen_pm_adjust_address(ctx, src1, src1); (*func)(src2, src1, src2, ctx->mem_idx, mop); =20 gen_set_gpr(a->rd, src2); diff --git a/target/riscv/insn_trans/trans_rvd.c.inc b/target/riscv/insn_tr= ans/trans_rvd.c.inc index 4f832637fa..935342f66d 100644 --- a/target/riscv/insn_trans/trans_rvd.c.inc +++ b/target/riscv/insn_trans/trans_rvd.c.inc @@ -25,6 +25,7 @@ static bool trans_fld(DisasContext *ctx, arg_fld *a) TCGv t0 =3D tcg_temp_new(); gen_get_gpr(t0, a->rs1); tcg_gen_addi_tl(t0, t0, a->imm); + gen_pm_adjust_address(ctx, t0, t0); =20 tcg_gen_qemu_ld_i64(cpu_fpr[a->rd], t0, ctx->mem_idx, MO_TEQ); =20 @@ -40,6 +41,7 @@ static bool trans_fsd(DisasContext *ctx, arg_fsd *a) TCGv t0 =3D tcg_temp_new(); gen_get_gpr(t0, a->rs1); tcg_gen_addi_tl(t0, t0, a->imm); + gen_pm_adjust_address(ctx, t0, t0); =20 tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], t0, ctx->mem_idx, MO_TEQ); =20 diff --git a/target/riscv/insn_trans/trans_rvf.c.inc b/target/riscv/insn_tr= ans/trans_rvf.c.inc index 3dfec8211d..04b3c3eb3d 100644 --- a/target/riscv/insn_trans/trans_rvf.c.inc +++ b/target/riscv/insn_trans/trans_rvf.c.inc @@ -30,6 +30,7 @@ static bool trans_flw(DisasContext *ctx, arg_flw *a) TCGv t0 =3D tcg_temp_new(); gen_get_gpr(t0, a->rs1); tcg_gen_addi_tl(t0, t0, a->imm); + gen_pm_adjust_address(ctx, t0, t0); =20 tcg_gen_qemu_ld_i64(cpu_fpr[a->rd], t0, ctx->mem_idx, MO_TEUL); gen_nanbox_s(cpu_fpr[a->rd], cpu_fpr[a->rd]); @@ -47,6 +48,7 @@ static bool trans_fsw(DisasContext *ctx, arg_fsw *a) gen_get_gpr(t0, a->rs1); =20 tcg_gen_addi_tl(t0, t0, a->imm); + gen_pm_adjust_address(ctx, t0, t0); =20 tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], t0, ctx->mem_idx, MO_TEUL); =20 diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_tr= ans/trans_rvi.c.inc index d04ca0394c..bee7f6be46 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -141,6 +141,7 @@ static bool gen_load(DisasContext *ctx, arg_lb *a, MemO= p memop) TCGv t1 =3D tcg_temp_new(); gen_get_gpr(t0, a->rs1); tcg_gen_addi_tl(t0, t0, a->imm); + gen_pm_adjust_address(ctx, t0, t0); =20 tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, memop); gen_set_gpr(a->rd, t1); @@ -180,6 +181,7 @@ static bool gen_store(DisasContext *ctx, arg_sb *a, Mem= Op memop) TCGv dat =3D tcg_temp_new(); gen_get_gpr(t0, a->rs1); tcg_gen_addi_tl(t0, t0, a->imm); + gen_pm_adjust_address(ctx, t0, t0); gen_get_gpr(dat, a->rs2); =20 tcg_gen_qemu_st_tl(dat, t0, ctx->mem_idx, memop); diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 79dca2291b..a7cbf909f3 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -101,6 +101,16 @@ static void gen_nanbox_s(TCGv_i64 out, TCGv_i64 in) tcg_gen_ori_i64(out, in, MAKE_64BIT_MASK(32, 32)); } =20 +/* + * Temp stub: generates address adjustment for PointerMasking + */ +static void gen_pm_adjust_address(DisasContext *s, + TCGv_i64 dst, + TCGv_i64 src) +{ + tcg_gen_mov_i64(dst, src); +} + /* * A narrow n-bit operation, where n < FLEN, checks that input operands * are correctly Nan-boxed, i.e., all upper FLEN - n bits are 1. @@ -380,6 +390,7 @@ static void gen_load_c(DisasContext *ctx, uint32_t opc,= int rd, int rs1, TCGv t1 =3D tcg_temp_new(); gen_get_gpr(t0, rs1); tcg_gen_addi_tl(t0, t0, imm); + gen_pm_adjust_address(ctx, t0, t0); int memop =3D tcg_memop_lookup[(opc >> 12) & 0x7]; =20 if (memop < 0) { @@ -400,6 +411,7 @@ static void gen_store_c(DisasContext *ctx, uint32_t opc= , int rs1, int rs2, TCGv dat =3D tcg_temp_new(); gen_get_gpr(t0, rs1); tcg_gen_addi_tl(t0, t0, imm); + gen_pm_adjust_address(ctx, t0, t0); gen_get_gpr(dat, rs2); int memop =3D tcg_memop_lookup[(opc >> 12) & 0x7]; =20 @@ -459,6 +471,7 @@ static void gen_fp_load(DisasContext *ctx, uint32_t opc= , int rd, t0 =3D tcg_temp_new(); gen_get_gpr(t0, rs1); tcg_gen_addi_tl(t0, t0, imm); + gen_pm_adjust_address(ctx, t0, t0); =20 switch (opc) { case OPC_RISC_FLW: @@ -498,6 +511,7 @@ static void gen_fp_store(DisasContext *ctx, uint32_t op= c, int rs1, t0 =3D tcg_temp_new(); gen_get_gpr(t0, rs1); tcg_gen_addi_tl(t0, t0, imm); + gen_pm_adjust_address(ctx, t0, t0); =20 switch (opc) { case OPC_RISC_FSW: --=20 2.20.1 From nobody Fri Apr 19 00:18:13 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1602886750; cv=none; d=zohomail.com; s=zohoarc; b=mW5vga6a1BUuEf2QC/5ZANONMSK+szeBvzfrFM6xK54tdbjp93CImvRzNLdBlDWsfNGfCS9sH/uvY7xXznDHe1HVCzib+XvxZETzoWTrtaus0F5EG0OQvwgrnLWYzeuF1BM7co/+TgycFNZmeE6Cax1HiJawErNqw/HuDKBuKcc= ARC-Message-Signature: i=1; a=rsa-sha256; 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Fri, 16 Oct 2020 15:11:50 -0700 (PDT) From: Alexey Baturo X-Google-Original-From: Alexey Baturo To: Subject: [PATCH v3 5/5] [RISCV_PM] Implement address masking functions required for RISC-V Pointer Masking extension Date: Sat, 17 Oct 2020 01:11:37 +0300 Message-Id: <20201016221138.10371-6-space.monkey.delivers@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201016221138.10371-1-space.monkey.delivers@gmail.com> References: <20201016221138.10371-1-space.monkey.delivers@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::143; envelope-from=baturo.alexey@gmail.com; helo=mail-lf1-x143.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_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: baturo.alexey@gmail.com, qemu-riscv@nongnu.org, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de, richard.henderson@linaro.org, qemu-devel@nongnu.org, space.monkey.delivers@gmail.com, Alistair.Francis@wdc.com, kupokupokupopo@gmail.com, palmer@dabbelt.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Anatoly Parshintsev Signed-off-by: Anatoly Parshintsev Reviewed-by: Richard Henderson --- target/riscv/cpu.h | 19 +++++++++++++++++++ target/riscv/translate.c | 34 ++++++++++++++++++++++++++++++++-- 2 files changed, 51 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 21e47b8283..a481c205c4 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -385,6 +385,7 @@ FIELD(TB_FLAGS, VL_EQ_VLMAX, 2, 1) FIELD(TB_FLAGS, LMUL, 3, 2) FIELD(TB_FLAGS, SEW, 5, 3) FIELD(TB_FLAGS, VILL, 8, 1) +FIELD(TB_FLAGS, PM_ENABLED, 9, 1) =20 /* * A simplification for VLMAX @@ -431,6 +432,24 @@ static inline void cpu_get_tb_cpu_state(CPURISCVState = *env, target_ulong *pc, if (riscv_cpu_fp_enabled(env)) { flags |=3D env->mstatus & MSTATUS_FS; } + if (riscv_has_ext(env, RVJ)) { + int priv =3D cpu_mmu_index(env, false); + bool pm_enabled =3D false; + switch (priv) { + case PRV_U: + pm_enabled =3D env->mmte & U_PM_ENABLE; + break; + case PRV_S: + pm_enabled =3D env->mmte & S_PM_ENABLE; + break; + case PRV_M: + pm_enabled =3D env->mmte & M_PM_ENABLE; + break; + default: + g_assert_not_reached(); + } + flags =3D FIELD_DP32(flags, TB_FLAGS, PM_ENABLED, pm_enabled); + } #endif *pflags =3D flags; } diff --git a/target/riscv/translate.c b/target/riscv/translate.c index a7cbf909f3..2cfc8fd26d 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -36,6 +36,9 @@ static TCGv cpu_gpr[32], cpu_pc, cpu_vl; static TCGv_i64 cpu_fpr[32]; /* assume F and D extensions */ static TCGv load_res; static TCGv load_val; +/* globals for PM CSRs */ +static TCGv pm_mask[4]; +static TCGv pm_base[4]; =20 #include "exec/gen-icount.h" =20 @@ -63,6 +66,10 @@ typedef struct DisasContext { uint16_t vlen; uint16_t mlen; bool vl_eq_vlmax; + /* PointerMasking extension */ + bool pm_enabled; + TCGv pm_mask; + TCGv pm_base; } DisasContext; =20 #ifdef TARGET_RISCV64 @@ -102,13 +109,19 @@ static void gen_nanbox_s(TCGv_i64 out, TCGv_i64 in) } =20 /* - * Temp stub: generates address adjustment for PointerMasking + * Generates address adjustment for PointerMasking */ static void gen_pm_adjust_address(DisasContext *s, TCGv_i64 dst, TCGv_i64 src) { - tcg_gen_mov_i64(dst, src); + if (!s->pm_enabled) { + /* Load unmodified address */ + tcg_gen_mov_i64(dst, src); + } else { + tcg_gen_andc_i64(dst, src, s->pm_mask); + tcg_gen_or_i64(dst, dst, s->pm_base); + } } =20 /* @@ -826,6 +839,10 @@ static void riscv_tr_init_disas_context(DisasContextBa= se *dcbase, CPUState *cs) ctx->lmul =3D FIELD_EX32(tb_flags, TB_FLAGS, LMUL); ctx->mlen =3D 1 << (ctx->sew + 3 - ctx->lmul); ctx->vl_eq_vlmax =3D FIELD_EX32(tb_flags, TB_FLAGS, VL_EQ_VLMAX); + ctx->pm_enabled =3D FIELD_EX32(tb_flags, TB_FLAGS, PM_ENABLED); + int priv =3D cpu_mmu_index(env, false); + ctx->pm_mask =3D pm_mask[priv]; + ctx->pm_base =3D pm_base[priv]; } =20 static void riscv_tr_tb_start(DisasContextBase *db, CPUState *cpu) @@ -945,4 +962,17 @@ void riscv_translate_init(void) "load_res"); load_val =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState, load_= val), "load_val"); + /* Assign PM CSRs to tcg globals */ + pm_mask[PRV_U] =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState,= upmmask), + "upmmask"); + pm_base[PRV_U] =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState,= upmbase), + "upmbase"); + pm_mask[PRV_S] =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState,= spmmask), + "spmmask"); + pm_base[PRV_S] =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState,= spmbase), + "spmbase"); + pm_mask[PRV_M] =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState,= mpmmask), + "mpmmask"); + pm_base[PRV_M] =3D tcg_global_mem_new(cpu_env, offsetof(CPURISCVState,= mpmbase), + "mpmbase"); } --=20 2.20.1