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Mon, 17 Jun 2024 11:58:44 -0700 (PDT) From: Ajeet Singh X-Google-Original-From: Ajeet Singh To: qemu-devel@nongnu.org Cc: Warner Losh , Ajeet Singh , Stacey Son , Ajeet Singh , Sean Bruno Subject: [PATCH 11/23] Update ARM AArch64 VM parameter definitions for bsd-user Date: Tue, 18 Jun 2024 00:27:52 +0530 Message-Id: <20240617185804.25075-12-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240617185804.25075-1-itachis@FreeBSD.org> References: <20240617185804.25075-1-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::42b; envelope-from=itachis6234@gmail.com; helo=mail-pf1-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, 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: 1718650777177100003 Content-Type: text/plain; charset="utf-8" From: Stacey Son Defined address spaces for FreeBSD/arm64 and added function for getting stack pointer from CPU and setting a return value. Signed-off-by: Stacey Son Signed-off-by: Warner Losh Signed-off-by: Ajeet Singh Co-authored-by: Sean Bruno Co-authored-by: Warner Losh Acked-by: Richard Henderson --- bsd-user/aarch64/target_arch_vmparam.h | 68 ++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 bsd-user/aarch64/target_arch_vmparam.h diff --git a/bsd-user/aarch64/target_arch_vmparam.h b/bsd-user/aarch64/targ= et_arch_vmparam.h new file mode 100644 index 0000000000..dc66e1289b --- /dev/null +++ b/bsd-user/aarch64/target_arch_vmparam.h @@ -0,0 +1,68 @@ +/* + * ARM AArch64 VM parameters definitions for bsd-user. + * + * Copyright (c) 2015 Stacey D. Son + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#ifndef TARGET_ARCH_VMPARAM_H +#define TARGET_ARCH_VMPARAM_H + +#include "cpu.h" + +/** + * FreeBSD/arm64 Address space layout. + * + * ARMv8 implements up to a 48 bit virtual address space. The address spac= e is + * split into 2 regions at each end of the 64 bit address space, with an + * out of range "hole" in the middle. + * + * We limit the size of the two spaces to 39 bits each. + * + * Upper region: 0xffffffffffffffff + * 0xffffff8000000000 + * + * Hole: 0xffffff7fffffffff + * 0x0000008000000000 + * + * Lower region: 0x0000007fffffffff + * 0x0000000000000000 + * + * The upper region for the kernel, and the lower region for userland. + */ + + +/* compare to sys/arm64/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 limi= t */ +#define TARGET_MAXSSIZ (1 * GiB) /* max stack size */ +#define TARGET_SGROWSIZ (128 * KiB) /* amount to grow stack */ + + /* KERNBASE - 512 MB */ +#define TARGET_VM_MAXUSER_ADDRESS (0x00007fffff000000ULL - (512 * MiB)) +#define TARGET_USRSTACK TARGET_VM_MAXUSER_ADDRESS + +static inline abi_ulong get_sp_from_cpustate(CPUARMState *state) +{ + return state->xregs[31]; /* sp */ +} + +static inline void set_second_rval(CPUARMState *state, abi_ulong retval2) +{ + state->xregs[1] =3D retval2; /* XXX not really used on 64-bit arch */ +} +#endif /* TARGET_ARCH_VMPARAM_H */ --=20 2.34.1