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([2a01:e0a:e17:9700:16d2:7456:6634:9626]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37cbc2ab52fsm3770612f8f.13.2024.09.25.04.58.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Sep 2024 04:58:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1727265497; x=1727870297; 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=DtVA3g+R+ZibrHbo8QSzjB1gIxGGYXP+xdSIzbQTjKc=; b=auiBYI846lBNK/W6hnYyKt8HDHtXnn8+0lhqLl4vBsw2V6aMdEByDR67ZYSqhc1VCS apY0hx8fTwx0AprKqc3NwM8Hg8II10refhyK1S7D1bzPrGQ7kVqnp1vwWkf7MYI9sY6d 5hFTZB1tQY5xaJzhFmRSTtZp5y03yrXC1UhlT7FSoJvH2KSmHAAD7YG4Xt6c3dwJonH+ OB1Fy9zh/LzVC/FwSakrZ9vYBKob45olON4d7xbozJ8rOwQYBsJYJNyA1+8qxX+BMz9x zsitoLcNT5lMCFeuuorX0SgYMitFQr+kh7XguN76Otby7qe7UL0UGig8eIeKsv0t9/kV dJeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727265497; x=1727870297; 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=DtVA3g+R+ZibrHbo8QSzjB1gIxGGYXP+xdSIzbQTjKc=; b=pisZuZTGEYek8TBi6H3i3xDV9AxhsLXQ3euuthAKCyzVVKbeMwXkAKVarYOxabgXdl /OAzoqSgdfnhbo2skCTC2sTAC/j2k7dx8+5pALb6+FOWtubGvH3xLt/CX4O1dt/TWBPj 2igj8DBDNLnVWJlYMuTql6ghdy7Xtue14n13y6HScwa/fw93ZsnvyQ6WfItLqkDY1UYb +B96HIOtVnSA46q6efGvXXnqf6v0q+8+D/SxD+OIuWcPd6sf63Vt4BlzgxW2ywfAw+fh v6dnD6QHjitWvkAGIpL8DNPmBEVsI19G1EkXe88WRg5ru7/zwCeMs+ln2b5lye9GY+SD 1/EA== X-Forwarded-Encrypted: i=1; AJvYcCWDar05zmjeW/5+Pczqd1JFeuedbFkeadsvg0cX+jVkLdIC5+LMPd6lskL8TDEDZIsH41r4A9xCC8sq@nongnu.org X-Gm-Message-State: AOJu0YzjJu4vurH4xnyZKElhPTjuWjtIGFa0AvShXcxZPJ5sTh/Lanry M2ONTCFMb6qNAh1qOLkmSZKASSzCBdSZ9wi2EXieDzp3AEIS1DMvgT1B2Cx1H+w= X-Google-Smtp-Source: AGHT+IGLDT7kNF3EypaCtw21v55/igBOJ3c598yBa3Lv1E9IgpjMQnhsNYsZMSWCg5GZjxTeWNkDUA== X-Received: by 2002:a5d:5b8f:0:b0:37c:ccdd:41b3 with SMTP id ffacd0b85a97d-37cccdd4268mr109534f8f.8.1727265497142; Wed, 25 Sep 2024 04:58:17 -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 v2 5/8] target/riscv: Add Smdbltrp CSRs handling Date: Wed, 25 Sep 2024 13:58:03 +0200 Message-ID: <20240925115808.77874-6-cleger@rivosinc.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240925115808.77874-1-cleger@rivosinc.com> References: <20240925115808.77874-1-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::42b; envelope-from=cleger@rivosinc.com; helo=mail-wr1-x42b.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, 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: 1727265587036116601 Add `ext_smdbltrp`in RISCVCPUConfig and implement MSTATUS.MDT behavior. Signed-off-by: Cl=C3=A9ment L=C3=A9ger --- target/riscv/cpu_bits.h | 1 + target/riscv/cpu_cfg.h | 1 + target/riscv/csr.c | 15 +++++++++++++++ 3 files changed, 17 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/cpu_cfg.h b/target/riscv/cpu_cfg.h index dd804f95d4..4c4caa2b39 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -78,6 +78,7 @@ struct RISCVCPUConfig { bool ext_sstc; bool ext_smcntrpmf; bool ext_ssdbltrp; + bool ext_smdbltrp; bool ext_svadu; bool ext_svinval; bool ext_svnapot; 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