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[115.64.160.35]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20710f1d4c6sm1703745ad.187.2024.09.06.20.19.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Sep 2024 20:20:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1725679201; x=1726284001; 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=UhgZSr77cs856626csVUMKafDNElH2DCETLtbp74JlY=; b=HIt7zlN9TwX9VNSZ9iXBxdku/wKcv5F1kBa+W/S7XJ2HScD1GAVNo9UMCvO+GK7ii/ BgMN0rhiXbHZ4gJ44YgX8hhBuQ5VyeeKYsLdR9skOCoYqhbQuupGQuxoLVsdmBI7PxGr 3fVVjXwEYsPPVusITgkuG3TGJ+1fly86VWWAjm0y6PSVIHlz09uLegmq02fv8l2X9H85 NSEskOTJIXp3c9FeDnHb5x9zyPsUpPoS6K3r8pjoLo5DFW/0kcZ8NNWNiDVGg2i7htY2 CW0ki/tUoWBLUfDX87twgMRcDJ9bO0jKDYw/UOVB5iXmqVqHCd9axrxXy6GSAiTcAvLu G7KA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725679201; x=1726284001; 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=UhgZSr77cs856626csVUMKafDNElH2DCETLtbp74JlY=; b=vxEv1EBEE+J0XdLr1QahdGN2zHN4RjXmc6dbFtVoJOTJwc9ztXuLeTXkGFRLn1jkmU NPq5e4jm1y4cRLA0r8E/fArbGP1AEDoG+sX4LCqgFvD70KaNtLOwJ4SitlkgWFtnIzKg ZdrmmXVF6/BbwjIKPWTvZTz/Y1WT1f193ucCmpHVoLPQFDDc6lVjU+SWeb0y3QbOU5pp HTrhIJXyxNrPV4p7uebGiDLcf3F1Rk9IwFNHvnP/Dm/CR11tZQLKiUz+bobOedWFGDOV OwiLcFBuORT9A6vFrSsVkxKIh/f2KH/DrE76o4TmpJHMGKPvlkNjzrPjkYXWm3j7LkfW oedQ== X-Gm-Message-State: AOJu0Yw43o4iXttaqwJyRtLNhtjfhf7xm6JRItknf8lr48h7I5feVo5Z +o9kgJNIKHFsG3hNYHys3IjYr6kzWNFAHMW/fksnl0hHf2eEHD9dQCF0/HSb X-Google-Smtp-Source: AGHT+IFGXLjjbfflLgm8LWYWRQa6AWQPNCfY9vh9gNK/nUCaaPDtT5MSQTeQ/dgnSlrxLYw5NuQHRA== X-Received: by 2002:a05:6a20:2d23:b0:1cf:2ba0:c36d with SMTP id adf61e73a8af0-1cf2ba0c374mr1142481637.3.1725679201242; Fri, 06 Sep 2024 20:20:01 -0700 (PDT) From: Ajeet Singh X-Google-Original-From: Ajeet Singh To: qemu-devel@nongnu.org Cc: Warner Losh , Mark Corbin , Ajeet Singh , Jessica Clarke , Kyle Evans , Richard Henderson Subject: [PATCH v5 09/17] bsd-user: Add RISC-V thread setup and initialization support Date: Sat, 7 Sep 2024 13:19:19 +1000 Message-Id: <20240907031927.1908-10-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240907031927.1908-1-itachis@FreeBSD.org> References: <20240907031927.1908-1-itachis@FreeBSD.org> 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::431; envelope-from=itachis6234@gmail.com; helo=mail-pf1-x431.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, 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, T_SCC_BODY_TEXT_LINE=-0.01 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: 1725679482849116600 Content-Type: text/plain; charset="utf-8" From: Mark Corbin Implemented functions for setting up and initializing threads in the RISC-V architecture. The 'target_thread_set_upcall' function sets up the stack pointer, program counter, and function argument for new threads. The 'target_thread_init' function initializes thread registers based on the provided image information. Signed-off-by: Mark Corbin Signed-off-by: Ajeet Singh Co-authored-by: Jessica Clarke Co-authored-by: Kyle Evans Reviewed-by: Richard Henderson --- bsd-user/riscv/target_arch_thread.h | 47 +++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 bsd-user/riscv/target_arch_thread.h diff --git a/bsd-user/riscv/target_arch_thread.h b/bsd-user/riscv/target_ar= ch_thread.h new file mode 100644 index 0000000000..95cd0b6ad7 --- /dev/null +++ b/bsd-user/riscv/target_arch_thread.h @@ -0,0 +1,47 @@ +/* + * RISC-V thread support + * + * Copyright (c) 2019 Mark Corbin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef TARGET_ARCH_THREAD_H +#define TARGET_ARCH_THREAD_H + +/* Compare with cpu_set_upcall() in riscv/riscv/vm_machdep.c */ +static inline void target_thread_set_upcall(CPURISCVState *regs, + abi_ulong entry, abi_ulong arg, abi_ulong stack_base, + abi_ulong stack_size) +{ + abi_ulong sp; + + sp =3D ROUND_DOWN(stack_base + stack_size, 16); + + regs->gpr[xSP] =3D sp; + regs->pc =3D entry; + regs->gpr[xA0] =3D arg; +} + +/* Compare with exec_setregs() in riscv/riscv/machdep.c */ +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->sepc =3D infop->entry; + regs->regs[xRA] =3D infop->entry; + regs->regs[xA0] =3D infop->start_stack; + regs->regs[xSP] =3D ROUND_DOWN(infop->start_stack, 16); +} + +#endif /* TARGET_ARCH_THREAD_H */ --=20 2.34.1