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[2403:580b:97e8:0:82ce:f179:8a79:69f4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-21105707064sm3022795ad.70.2024.10.30.20.54.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Oct 2024 20:54:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1730346858; x=1730951658; 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=l4KutYTrZgHZTpGumE02ekFmWFxsAFox/FtQkNUUqSo=; b=luZUrEFz5Y7sgjVc996KxXwgEdp0QIUm8yNyShpkaWrK0AGpszHcnw9AmA7v137r4w 9njRmDIDqzfQvfJ4bEAqJP1x13RjpktgKal4s13T3v1CoHTAt+LJ9tlfCd3mA1zEqYf/ 65k8YfLwSvsvcE9TwZn9H4pd9jDh7aKO2Ka0lMooF23vapMKaug58J7v0Q5Q4seciHj9 Fv4mJckksAlM1SYRAiEAOlouxY6MakZKH1b7K8NymaiwLuBHGh9NovVARztJ1cCg8Kj2 NWhhOeueMWdMS/Ak4L+hum4xzD3Rf1FAqQqurfrKlighOWo8xrjll0d7EVdwKMi/SP8u QRIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730346858; x=1730951658; 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=l4KutYTrZgHZTpGumE02ekFmWFxsAFox/FtQkNUUqSo=; b=cVVm7hiGVGbObbqyhI+ojn8c8Vv+L+JVDfU8N66eau1GDoShF3SnsIT5UtPRholWmE 46KY0OwHD+rhRggZOYecXCuHJEsyj6lsh5aS+jthPr2lT9I6AHlFBq+OVeoc3Cy9nAok WWRxjOehL9Y8A6kiyPXf5VDLMz09H9k2DtCJIX4o5rIoTk4VrC3HIsPOP99e7/yWdkq9 3cnKoNtNhJf3rPPkEnZEmlBXyqpM7vDGXFJSbDGPHKd/miEaRKb0Jn+ezHaW6BVufXAi oyVlg7xYUywu09mW1M1MePUrTai1SMSjjgiqShKPyyEEuDDGq/5uqhFakAhtaxwHoEIo RrIw== X-Gm-Message-State: AOJu0YwuUa+80cM4fm8IKA7pSz4qr22XBNi1tiXdc1sw7tmq7oevlbOh AsDeCSk7vxRhfaiRwhhgASDkHTeIsMks8yEj+0FbAmPKG7iphsrTqLvP7qgX X-Google-Smtp-Source: AGHT+IHQTzpOqb1aT5bxoqqYuw6aTDErktSh5VkVGkkeCSDUWlmdoSCTh8KYmGcLCA+pb0uMItMGgQ== X-Received: by 2002:a17:903:2b04:b0:20c:a175:1942 with SMTP id d9443c01a7336-210c6c032cfmr219753205ad.24.1730346858158; Wed, 30 Oct 2024 20:54:18 -0700 (PDT) From: Alistair Francis X-Google-Original-From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Deepak Gupta , Jim Shu , Andy Chiu , Alistair Francis Subject: [PULL 17/50] target/riscv: Add zicfilp extension Date: Thu, 31 Oct 2024 13:52:45 +1000 Message-ID: <20241031035319.731906-18-alistair.francis@wdc.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241031035319.731906-1-alistair.francis@wdc.com> References: <20241031035319.731906-1-alistair.francis@wdc.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=2607:f8b0:4864:20::62b; envelope-from=alistair23@gmail.com; helo=mail-pl1-x62b.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: 2.1.29 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 @gmail.com) X-ZM-MESSAGEID: 1730346936477116600 Content-Type: text/plain; charset="utf-8" From: Deepak Gupta zicfilp [1] riscv cpu extension enables forward control flow integrity. If enabled, all indirect calls must land on a landing pad instruction. This patch sets up space for zicfilp extension in cpuconfig. zicfilp is dependend on zicsr. [1] - https://github.com/riscv/riscv-cfi Signed-off-by: Deepak Gupta Co-developed-by: Jim Shu Co-developed-by: Andy Chiu Reviewed-by: Alistair Francis Message-ID: <20241008225010.1861630-3-debug@rivosinc.com> Signed-off-by: Alistair Francis --- target/riscv/cpu_cfg.h | 1 + target/riscv/cpu.c | 1 + target/riscv/tcg/tcg-cpu.c | 5 +++++ 3 files changed, 7 insertions(+) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index 355afedfd3..fe7ad85b66 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -67,6 +67,7 @@ struct RISCVCPUConfig { bool ext_zicbom; bool ext_zicbop; bool ext_zicboz; + bool ext_zicfilp; bool ext_zicond; bool ext_zihintntl; bool ext_zihintpause; diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index f0e32c4e6e..6fa2689f35 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -106,6 +106,7 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(ziccif, PRIV_VERSION_1_11_0, has_priv_1_11), ISA_EXT_DATA_ENTRY(zicclsm, PRIV_VERSION_1_11_0, has_priv_1_11), ISA_EXT_DATA_ENTRY(ziccrse, PRIV_VERSION_1_11_0, has_priv_1_11), + ISA_EXT_DATA_ENTRY(zicfilp, PRIV_VERSION_1_12_0, ext_zicfilp), ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond), ISA_EXT_DATA_ENTRY(zicntr, PRIV_VERSION_1_12_0, ext_zicntr), ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_zicsr), diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index dea8ab7a43..963c1c604a 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -623,6 +623,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, = Error **errp) cpu->pmu_avail_ctrs =3D 0; } =20 + if (cpu->cfg.ext_zicfilp && !cpu->cfg.ext_zicsr) { + error_setg(errp, "zicfilp extension requires zicsr extension"); + return; + } + /* * Disable isa extensions based on priv spec after we * validated and set everything we need. --=20 2.47.0