From patchwork Tue Sep 24 22:17:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair Francis X-Patchwork-Id: 13811330 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CB877CF9C69 for ; Tue, 24 Sep 2024 22:23:21 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1stDte-0006wN-1J; Tue, 24 Sep 2024 18:20:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1stDtJ-0005Dj-3T for qemu-devel@nongnu.org; Tue, 24 Sep 2024 18:20:18 -0400 Received: from mail-pg1-x529.google.com ([2607:f8b0:4864:20::529]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1stDtG-0001ye-Dp for qemu-devel@nongnu.org; Tue, 24 Sep 2024 18:20:16 -0400 Received: by mail-pg1-x529.google.com with SMTP id 41be03b00d2f7-7db54269325so4565033a12.2 for ; Tue, 24 Sep 2024 15:20:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1727216413; x=1727821213; 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=5+rL96KA2TaSr2kqQNMRPZSETPVINYWMIK0bU7+DIB8=; b=brwWYlf98JOiLCI/iU434sf9DDUYFSX1gp1m7p2mwzB7LKdML63wqKL3RwSw9QKKl6 2RfHrERKuvQL2PtKCicjBoxeszwr1nFmsQxcttkcuTaDdKb2ZDMThXihdsBshOqFrcY0 4tkvpv+ZdkWi8FeO+dRCRyGpTRFOfpMaogegJr7FIs7hLEuWSXpmojtKu+HF5srhRrJb 8N0ozbRueLRn8eEBZ5aUg2JbVAUGZolTLAMTbM6heDzjvS+ynUtJuulSf+ufjl2VuiFb MnFFHFgq2wqas3qUQTAgd+H4+f2QLIeu2nez/cKf8SyILujlB4wdp5Yu0FjWQWb+gIyg lebA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727216413; x=1727821213; 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=5+rL96KA2TaSr2kqQNMRPZSETPVINYWMIK0bU7+DIB8=; b=ELP5Ls11kOEXVpF7uoJb5C/zmB70lww4lSlESl47n/eSgSLO661FyO8gjUzBa36Qih uC8KIL+gDlrn00s4V95xP6kPhJaJnXR53e4PppSw+WBQ4Q2Bbr59O7ASC6RA/1MwjvyZ KAQ2CuIVLE4i61mUcDnReY96LuEs3MI2nBYJWTl/3rQqLjYFCP/b7HluMpWKOYNtM0GM ph7i5S0pvYw9w9U0foPObwjCB5UacCEPLf/HJcI4IMdkIRD2WNuwUoc03J01uaeLbhX8 N2bt+v1ebaSJhofyUcKWsphq5kiknqk+sBCX0no2mKQEsQ1r56LRm0jbemLorAwfSomJ 9tHw== X-Gm-Message-State: AOJu0YyqnyZap9UUdzo++6Mpe3Yne/I8qS9yq41Iq8HFdRADCTn70MPM t8Y/ez3Jg7ge+Y0romfgl+qt7dAaI1/V+R98SqEE/pZB3alOK4e8EwuqdA== X-Google-Smtp-Source: AGHT+IEdsb02AVXUcMVdeg0YBmvIEJzHKWdR8b8aRnemce7swm0eP4YILg5KooGGq39G6jCo9n7GRg== X-Received: by 2002:a05:6a21:e8b:b0:1d3:b38:891 with SMTP id adf61e73a8af0-1d4c6f30e91mr918309637.6.1727216412796; Tue, 24 Sep 2024 15:20:12 -0700 (PDT) Received: from toolbox.alistair23.me (2403-580b-97e8-0-82ce-f179-8a79-69f4.ip6.aussiebb.net. [2403:580b:97e8:0:82ce:f179:8a79:69f4]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71afc8342easm1665310b3a.11.2024.09.24.15.20.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Sep 2024 15:20:12 -0700 (PDT) From: Alistair Francis X-Google-Original-From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Mark Corbin , Ajeet Singh , Richard Henderson , Alistair Francis Subject: [PULL v2 40/47] bsd-user: Define RISC-V VM parameters and helper functions Date: Wed, 25 Sep 2024 08:17:41 +1000 Message-ID: <20240924221751.2688389-41-alistair.francis@wdc.com> X-Mailer: git-send-email 2.46.1 In-Reply-To: <20240924221751.2688389-1-alistair.francis@wdc.com> References: <20240924221751.2688389-1-alistair.francis@wdc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::529; envelope-from=alistair23@gmail.com; helo=mail-pg1-x529.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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Mark Corbin Added definitions for RISC-V VM parameters, including maximum and default sizes for text, data, and stack, as well as address space limits. Implemented helper functions for retrieving and setting specific values in the CPU state, such as stack pointer and return values. Signed-off-by: Mark Corbin Signed-off-by: Ajeet Singh Reviewed-by: Richard Henderson Message-ID: <20240916155119.14610-11-itachis@FreeBSD.org> Signed-off-by: Alistair Francis --- bsd-user/riscv/target_arch_vmparam.h | 53 ++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 bsd-user/riscv/target_arch_vmparam.h diff --git a/bsd-user/riscv/target_arch_vmparam.h b/bsd-user/riscv/target_arch_vmparam.h new file mode 100644 index 0000000000..0f2486def1 --- /dev/null +++ b/bsd-user/riscv/target_arch_vmparam.h @@ -0,0 +1,53 @@ +/* + * RISC-V VM parameters definitions + * + * 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_VMPARAM_H +#define TARGET_ARCH_VMPARAM_H + +#include "cpu.h" + +/* Compare with riscv/include/vmparam.h */ +#define TARGET_MAXTSIZ (1 * GiB) /* max text size */ +#define TARGET_DFLDSIZ (128 * MiB) /* initial data size limit */ +#define TARGET_MAXDSIZ (1 * GiB) /* max data size */ +#define TARGET_DFLSSIZ (128 * MiB) /* initial stack size limit */ +#define TARGET_MAXSSIZ (1 * GiB) /* max stack size */ +#define TARGET_SGROWSIZ (128 * KiB) /* amount to grow stack */ + +#define TARGET_VM_MINUSER_ADDRESS (0x0000000000000000UL) +#define TARGET_VM_MAXUSER_ADDRESS (0x0000004000000000UL) + +#define TARGET_USRSTACK (TARGET_VM_MAXUSER_ADDRESS - TARGET_PAGE_SIZE) + +static inline abi_ulong get_sp_from_cpustate(CPURISCVState *state) +{ + return state->gpr[xSP]; +} + +static inline void set_second_rval(CPURISCVState *state, abi_ulong retval2) +{ + state->gpr[xA1] = retval2; +} + +static inline abi_ulong get_second_rval(CPURISCVState *state) +{ + return state->gpr[xA1]; +} + +#endif /* TARGET_ARCH_VMPARAM_H */