From patchwork Thu Mar 7 15:28:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 13585905 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 616D6C54798 for ; Thu, 7 Mar 2024 15:34:26 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riFg4-0006Bz-LI; Thu, 07 Mar 2024 10:29:00 -0500 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 1riFfu-00068F-Vw for qemu-devel@nongnu.org; Thu, 07 Mar 2024 10:28:52 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riFfn-0005di-16 for qemu-devel@nongnu.org; Thu, 07 Mar 2024 10:28:50 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Dx6ugn3ellBvgVAA--.34502S3; Thu, 07 Mar 2024 23:28:39 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxdMwk3ellNlBQAA--.33344S3; Thu, 07 Mar 2024 23:28:39 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org Subject: [PULL v2 01/17] hw/loongarch: Move boot fucntions to boot.c Date: Thu, 7 Mar 2024 23:28:19 +0800 Message-Id: <20240307152835.299233-2-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20240307152835.299233-1-gaosong@loongson.cn> References: <20240307152835.299233-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxdMwk3ellNlBQAA--.33344S3 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn 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, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Move some boot functions to boot.c and struct loongarch_boot_info into struct LoongArchMachineState. Signed-off-by: Song Gao Message-Id: <20240301093839.663947-2-gaosong@loongson.cn> --- hw/loongarch/boot.c | 125 ++++++++++++++++++++++++++++++++++++ hw/loongarch/meson.build | 1 + hw/loongarch/virt.c | 121 +++------------------------------- include/hw/loongarch/boot.h | 21 ++++++ include/hw/loongarch/virt.h | 2 + 5 files changed, 157 insertions(+), 113 deletions(-) create mode 100644 hw/loongarch/boot.c create mode 100644 include/hw/loongarch/boot.h diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c new file mode 100644 index 0000000000..0f2bc15fdf --- /dev/null +++ b/hw/loongarch/boot.c @@ -0,0 +1,125 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch boot helper functions. + * + * Copyright (c) 2023 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "qemu/units.h" +#include "target/loongarch/cpu.h" +#include "hw/loongarch/virt.h" +#include "hw/loader.h" +#include "elf.h" +#include "qemu/error-report.h" +#include "sysemu/reset.h" + +static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) +{ + return addr & MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS); +} + +static int64_t load_kernel_info(struct loongarch_boot_info *info) +{ + uint64_t kernel_entry, kernel_low, kernel_high; + ssize_t kernel_size; + + kernel_size = load_elf(info->kernel_filename, NULL, + cpu_loongarch_virt_to_phys, NULL, + &kernel_entry, &kernel_low, + &kernel_high, NULL, 0, + EM_LOONGARCH, 1, 0); + + if (kernel_size < 0) { + error_report("could not load kernel '%s': %s", + info->kernel_filename, + load_elf_strerror(kernel_size)); + exit(1); + } + return kernel_entry; +} + +static void reset_load_elf(void *opaque) +{ + LoongArchCPU *cpu = opaque; + CPULoongArchState *env = &cpu->env; + + cpu_reset(CPU(cpu)); + if (env->load_elf) { + cpu_set_pc(CPU(cpu), env->elf_address); + } +} + +static void fw_cfg_add_kernel_info(struct loongarch_boot_info *info, + FWCfgState *fw_cfg) +{ + /* + * Expose the kernel, the command line, and the initrd in fw_cfg. + * We don't process them here at all, it's all left to the + * firmware. + */ + load_image_to_fw_cfg(fw_cfg, + FW_CFG_KERNEL_SIZE, FW_CFG_KERNEL_DATA, + info->kernel_filename, + false); + + if (info->initrd_filename) { + load_image_to_fw_cfg(fw_cfg, + FW_CFG_INITRD_SIZE, FW_CFG_INITRD_DATA, + info->initrd_filename, false); + } + + if (info->kernel_cmdline) { + fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, + strlen(info->kernel_cmdline) + 1); + fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, + info->kernel_cmdline); + } +} + +static void loongarch_firmware_boot(LoongArchMachineState *lams, + struct loongarch_boot_info *info) +{ + fw_cfg_add_kernel_info(info, lams->fw_cfg); +} + +static void loongarch_direct_kernel_boot(struct loongarch_boot_info *info) +{ + int64_t kernel_addr = 0; + LoongArchCPU *lacpu; + CPUState *cs; + + if (info->kernel_filename) { + kernel_addr = load_kernel_info(info); + } else { + error_report("Need kernel filename\n"); + exit(1); + } + + CPU_FOREACH(cs) { + lacpu = LOONGARCH_CPU(cs); + lacpu->env.load_elf = true; + lacpu->env.elf_address = kernel_addr; + } +} + +void loongarch_load_kernel(MachineState *ms, struct loongarch_boot_info *info) +{ + LoongArchMachineState *lams = LOONGARCH_MACHINE(ms); + int i; + + /* register reset function */ + for (i = 0; i < ms->smp.cpus; i++) { + qemu_register_reset(reset_load_elf, LOONGARCH_CPU(qemu_get_cpu(i))); + } + + info->kernel_filename = ms->kernel_filename; + info->kernel_cmdline = ms->kernel_cmdline; + info->initrd_filename = ms->initrd_filename; + + if (lams->bios_loaded) { + loongarch_firmware_boot(lams, info); + } else { + loongarch_direct_kernel_boot(info); + } +} diff --git a/hw/loongarch/meson.build b/hw/loongarch/meson.build index c0421502ab..d306d82c2e 100644 --- a/hw/loongarch/meson.build +++ b/hw/loongarch/meson.build @@ -1,6 +1,7 @@ loongarch_ss = ss.source_set() loongarch_ss.add(files( 'fw_cfg.c', + 'boot.c', )) loongarch_ss.add(when: 'CONFIG_LOONGARCH_VIRT', if_true: [files('virt.c'), fdt]) loongarch_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-build.c')) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 1e98d8bda5..bbd5cc1d4d 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -46,14 +46,6 @@ #include "hw/block/flash.h" #include "qemu/error-report.h" - -struct loaderparams { - uint64_t ram_size; - const char *kernel_filename; - const char *kernel_cmdline; - const char *initrd_filename; -}; - static PFlashCFI01 *virt_flash_create1(LoongArchMachineState *lams, const char *name, const char *alias_prop_name) @@ -411,31 +403,6 @@ static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type) memmap_entries++; } -static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) -{ - return addr & MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS); -} - -static int64_t load_kernel_info(const struct loaderparams *loaderparams) -{ - uint64_t kernel_entry, kernel_low, kernel_high; - ssize_t kernel_size; - - kernel_size = load_elf(loaderparams->kernel_filename, NULL, - cpu_loongarch_virt_to_phys, NULL, - &kernel_entry, &kernel_low, - &kernel_high, NULL, 0, - EM_LOONGARCH, 1, 0); - - if (kernel_size < 0) { - error_report("could not load kernel '%s': %s", - loaderparams->kernel_filename, - load_elf_strerror(kernel_size)); - exit(1); - } - return kernel_entry; -} - static DeviceState *create_acpi_ged(DeviceState *pch_pic, LoongArchMachineState *lams) { DeviceState *dev; @@ -716,67 +683,6 @@ static void loongarch_firmware_init(LoongArchMachineState *lams) } } -static void reset_load_elf(void *opaque) -{ - LoongArchCPU *cpu = opaque; - CPULoongArchState *env = &cpu->env; - - cpu_reset(CPU(cpu)); - if (env->load_elf) { - cpu_set_pc(CPU(cpu), env->elf_address); - } -} - -static void fw_cfg_add_kernel_info(const struct loaderparams *loaderparams, - FWCfgState *fw_cfg) -{ - /* - * Expose the kernel, the command line, and the initrd in fw_cfg. - * We don't process them here at all, it's all left to the - * firmware. - */ - load_image_to_fw_cfg(fw_cfg, - FW_CFG_KERNEL_SIZE, FW_CFG_KERNEL_DATA, - loaderparams->kernel_filename, - false); - - if (loaderparams->initrd_filename) { - load_image_to_fw_cfg(fw_cfg, - FW_CFG_INITRD_SIZE, FW_CFG_INITRD_DATA, - loaderparams->initrd_filename, false); - } - - if (loaderparams->kernel_cmdline) { - fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, - strlen(loaderparams->kernel_cmdline) + 1); - fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, - loaderparams->kernel_cmdline); - } -} - -static void loongarch_firmware_boot(LoongArchMachineState *lams, - const struct loaderparams *loaderparams) -{ - fw_cfg_add_kernel_info(loaderparams, lams->fw_cfg); -} - -static void loongarch_direct_kernel_boot(LoongArchMachineState *lams, - const struct loaderparams *loaderparams) -{ - MachineState *machine = MACHINE(lams); - int64_t kernel_addr = 0; - LoongArchCPU *lacpu; - int i; - - kernel_addr = load_kernel_info(loaderparams); - if (!machine->firmware) { - for (i = 0; i < machine->smp.cpus; i++) { - lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); - lacpu->env.load_elf = true; - lacpu->env.elf_address = kernel_addr; - } - } -} static void loongarch_qemu_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) @@ -832,7 +738,6 @@ static void loongarch_init(MachineState *machine) MachineClass *mc = MACHINE_GET_CLASS(machine); CPUState *cpu; char *ramName = NULL; - struct loaderparams loaderparams = { }; if (!cpu_model) { cpu_model = LOONGARCH_CPU_TYPE_NAME("la464"); @@ -935,24 +840,8 @@ static void loongarch_init(MachineState *machine) sizeof(struct memmap_entry) * (memmap_entries)); } fdt_add_fw_cfg_node(lams); - loaderparams.ram_size = ram_size; - loaderparams.kernel_filename = machine->kernel_filename; - loaderparams.kernel_cmdline = machine->kernel_cmdline; - loaderparams.initrd_filename = machine->initrd_filename; - /* load the kernel. */ - if (loaderparams.kernel_filename) { - if (lams->bios_loaded) { - loongarch_firmware_boot(lams, &loaderparams); - } else { - loongarch_direct_kernel_boot(lams, &loaderparams); - } - } fdt_add_flash_node(lams); - /* register reset function */ - for (i = 0; i < machine->smp.cpus; i++) { - lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); - qemu_register_reset(reset_load_elf, lacpu); - } + /* Initialize the IO interrupt subsystem */ loongarch_irq_init(lams); fdt_add_irqchip_node(lams); @@ -976,7 +865,13 @@ static void loongarch_init(MachineState *machine) */ fdt_base = 1 * MiB; qemu_fdt_dumpdtb(machine->fdt, lams->fdt_size); - rom_add_blob_fixed("fdt", machine->fdt, lams->fdt_size, fdt_base); + rom_add_blob_fixed_as("fdt", machine->fdt, lams->fdt_size, fdt_base, + &address_space_memory); + qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, + rom_ptr_for_as(&address_space_memory, fdt_base, lams->fdt_size)); + + lams->bootinfo.ram_size = ram_size; + loongarch_load_kernel(machine, &lams->bootinfo); } bool loongarch_is_acpi_enabled(LoongArchMachineState *lams) diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h new file mode 100644 index 0000000000..3275c1e295 --- /dev/null +++ b/include/hw/loongarch/boot.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Definitions for LoongArch boot. + * + * Copyright (C) 2023 Loongson Technology Corporation Limited + */ + +#ifndef HW_LOONGARCH_BOOT_H +#define HW_LOONGARCH_BOOT_H + +struct loongarch_boot_info { + uint64_t ram_size; + const char *kernel_filename; + const char *kernel_cmdline; + const char *initrd_filename; + uint64_t a0, a1, a2; +}; + +void loongarch_load_kernel(MachineState *ms, struct loongarch_boot_info *info); + +#endif /* HW_LOONGARCH_BOOT_H */ diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 252f7df7f4..cf2f2bfb19 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -13,6 +13,7 @@ #include "qemu/queue.h" #include "hw/intc/loongarch_ipi.h" #include "hw/block/flash.h" +#include "hw/loongarch/boot.h" #define LOONGARCH_MAX_CPUS 256 @@ -55,6 +56,7 @@ struct LoongArchMachineState { MemoryRegion system_iocsr; MemoryRegion iocsr_mem; AddressSpace as_iocsr; + struct loongarch_boot_info bootinfo; }; #define TYPE_LOONGARCH_MACHINE MACHINE_TYPE_NAME("virt")