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[2403:580b:97e8:0:82ce:f179:8a79:69f4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20b37e60c76sm78324235ad.269.2024.10.01.22.52.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2024 22:52:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1727848342; x=1728453142; 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=lTv4QjqmkJPLDgXsVFnvP++RiH8vKcNV+GzOrq1miS4=; b=Ebk9YeTOabwdmod9koNAjMXw8m7zhe64Elp3rM30uzxfHFvUvBm6MDxJZhZEJ/EkmQ NGSN92oKu6ACRMv0v3oGBHqm+g3BBZY93uQtELJnrXXxnhFq4ik+1ytTHh+bknsKPi8S kiPMr2y8JClTtNm+gWAPHRBQ6Jt0BicWmHnSXtoWmhxnvN1Y+fKgk+JeUxidN3U3yHUn yj9gjOb9SrpU7CRKCxy6aK95PHEbQcrtvl9QtqG4rG52ztA+VSeBO+HIASXlXR5gV3hv BBrvM86aHDFawW8j3JhCzBzi2POcf/ylrlPnX59w/cdyeaR7cRQIqtfq9JFCdAmUSQKe pi9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727848342; x=1728453142; 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=lTv4QjqmkJPLDgXsVFnvP++RiH8vKcNV+GzOrq1miS4=; b=ebrx6G7vNMjEk8ZU3ZBdjR3ILzGz/c9mVBCh10MS3WrMWmEF2Wz8/IST11f5dPOjCe OKE+ANf5Sa52B6NKW0NfM0Aj5bMTPcHYF6TJOBxAnVXpZxqOcg8qPVJUT0hQOos3sX9b EKi7HvAqqSGBA28GAtGTyC3/KFGkwFyCfCZxJtF0BepFhF3XBzgeBZlaPcx/omH4tDfP 24aajUhYAshBe34Re9ylku+OMoqlhQ2LpAPClVdsRM4hA8lR8ns6FWnHUCQ7JC09saso r7CKYuvAq9wavSobaZeGRrPFJzyimGTODAVWJ9Rny4ZU2HOmAfxVbpkCh9D7ZTFeTdLC 69yQ== X-Gm-Message-State: AOJu0Yxat+hsi2XUVS5+Mx93Rq9CiTPOG7Q1SWHpIarfx/Yvr3rABV/+ oAux+9R8osQolggHdELL+HghGqYtkrxcEGl9H6wADMO7wp9UFAHbXBC/CZtM X-Google-Smtp-Source: AGHT+IHXtCw/7v0lj4EY9RIMpY6fL58sCeUb+MNlV/3oqhFjgCTL+b/4EryUyHCDjeBIp2CKgW2lUw== X-Received: by 2002:a17:902:e848:b0:20b:54e5:e803 with SMTP id d9443c01a7336-20bc5a77deamr25359465ad.50.1727848342038; Tue, 01 Oct 2024 22:52:22 -0700 (PDT) From: Alistair Francis X-Google-Original-From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Mark Corbin , Ajeet Singh , Jessica Clarke , Kyle Evans , Richard Henderson , Alistair Francis Subject: [PULL v3 27/35] bsd-user: Add RISC-V thread setup and initialization support Date: Wed, 2 Oct 2024 15:50:40 +1000 Message-ID: <20241002055048.556083-28-alistair.francis@wdc.com> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241002055048.556083-1-alistair.francis@wdc.com> References: <20241002055048.556083-1-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::62d; envelope-from=alistair23@gmail.com; helo=mail-pl1-x62d.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: 1727848474710116600 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 Message-ID: <20240916155119.14610-10-itachis@FreeBSD.org> Signed-off-by: Alistair Francis --- 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 2.46.2