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([2a01:e0a:e17:9700:16d2:7456:6634:9626]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-42caeb33a92sm165637475e9.20.2024.09.12.01.48.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Sep 2024 01:48:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1726130927; x=1726735727; 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=DbIiKpe94DikCsQx7ZUJ7hfk6G1VSudpYPlKpBAptb0=; b=QGw2KQ1WbuSxjw10jP+Egip5u7PbHQFlvafpc1qv5jarnRNHdoStUS9+o57Sw33fb/ +pwUR13TMEYLBqa0yPYgKoMu+J5A4LoN5ca29kiyEpcghzW2dNRjXKLxm/8/u7Ejbqdy ynvTHxHu5BQnOjUOqCIpiO3okYZklket/9L1nY/QSQUovencnlv5+o2n0sjhEwZzgpDZ ilSopZE2ARRLjeJgCICaATWHYgiuRnA8UIzVUBbkG/UAeKfC80nqT1mW8wJ+pd30vrHu v/yJwwR206Aw5D3ePz9lNG0mWneDFUgmK8ghB+e2UXB/TrSg8lURIw2WKTRJPN9Ihipe ugUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726130927; x=1726735727; 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=DbIiKpe94DikCsQx7ZUJ7hfk6G1VSudpYPlKpBAptb0=; b=kHM0V4I0thqKGd622I6LlBp+nYM3nWnXj46z1pgnwOsqw45IKAdpmzJHiXzHfTF2lA 6vTRADojAmYYNmX7PuYqCxe6dl555RsiIprbQUj/vc0edVnIbrE/937O7Boei6I+ppHG HY5HToZbrIgsbfLV0gMv2/Aae3Iw0qCSZyDq3SmGdGNQSWtGgnkyNeu+1HBI4izk98JR wtV6DoePUCvJ/TEexPCBhe5dPIL24dzN4uUT32mCyZmee94AzToemQJFj3D80LEBFGr+ fQVTSr7e2K97XM/Uh3brSdhCSb5MbpxqBjwzxs8OfFkOKk9EwZNgPD1+OkY5R7riIf5N Q8Ew== X-Forwarded-Encrypted: i=1; AJvYcCVJiPWBzz9pjf0685e1uMKFdHffRSbD89pzLIsAFSLd4Me2+itTv9bTlX3cEgDIWEx23NGbzO73tPg0@nongnu.org X-Gm-Message-State: AOJu0YwFSK7hKIP8WHl1V0AlHmMhjgACnVDatsuIrePiXjPCIMOi5xdc VnPuunwXDD+/EmWVBIQWR0qR3v7jdCTi9DeE+N22GIv0IUqFcWbx3o0xZJpDSJ0= X-Google-Smtp-Source: AGHT+IFWUjZI26GbDL//PYrrQU7Cb3DYVR0quXUykaBWdI9CJCnnvLaBJ+YPjR1xSFa28kyUaTNk0g== X-Received: by 2002:a05:600c:3b17:b0:42c:ba83:3f0e with SMTP id 5b1f17b1804b1-42cdb538c44mr16565485e9.7.1726130926723; Thu, 12 Sep 2024 01:48:46 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= To: qemu-riscv@nongnu.org, Palmer Dabbelt , Alistair Francis , Bin Meng Cc: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , Ved Shanbhogue , Atish Patra , qemu-devel@nongnu.org Subject: [PATCH 07/10] target/riscv: Add Smdbltrp CSRs handling Date: Thu, 12 Sep 2024 10:48:26 +0200 Message-ID: <20240912084832.2906991-8-cleger@rivosinc.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240912084832.2906991-1-cleger@rivosinc.com> References: <20240912084832.2906991-1-cleger@rivosinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::32a; envelope-from=cleger@rivosinc.com; helo=mail-wm1-x32a.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @rivosinc-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726131048694116600 Implement MSTATUS.MDT behavior. Signed-off-by: Cl=C3=A9ment L=C3=A9ger --- target/riscv/cpu_bits.h | 1 + target/riscv/csr.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index 5557a86348..62bab1bf55 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -561,6 +561,7 @@ #define MSTATUS_SDT 0x01000000 #define MSTATUS_GVA 0x4000000000ULL #define MSTATUS_MPV 0x8000000000ULL +#define MSTATUS_MDT 0x40000000000ULL /* Smdbltrp extension */ =20 #define MSTATUS64_UXL 0x0000000300000000ULL #define MSTATUS64_SXL 0x0000000C00000000ULL diff --git a/target/riscv/csr.c b/target/riscv/csr.c index d8280ec956..cc1940447a 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -1617,6 +1617,14 @@ static RISCVException write_mstatus(CPURISCVState *e= nv, int csrno, } } =20 + if (riscv_cpu_cfg(env)->ext_smdbltrp) { + mask |=3D MSTATUS_MDT; + if ((val & MSTATUS_MDT) !=3D 0) { + mstatus &=3D ~MSTATUS_MIE; + val &=3D ~MSTATUS_MIE; + } + } + if (xl !=3D MXL_RV32 || env->debugger) { if (riscv_has_ext(env, RVH)) { mask |=3D MSTATUS_MPV | MSTATUS_GVA; @@ -1655,6 +1663,13 @@ static RISCVException write_mstatush(CPURISCVState *= env, int csrno, uint64_t valh =3D (uint64_t)val << 32; uint64_t mask =3D riscv_has_ext(env, RVH) ? MSTATUS_MPV | MSTATUS_GVA = : 0; =20 + if (riscv_cpu_cfg(env)->ext_smdbltrp) { + mask |=3D MSTATUS_MDT; + if ((val & MSTATUS_MDT) !=3D 0) { + env->mstatus &=3D ~MSTATUS_MIE; + val &=3D ~MSTATUS_MIE; + } + } env->mstatus =3D (env->mstatus & ~mask) | (valh & mask); =20 return RISCV_EXCP_NONE; --=20 2.45.2