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Kernel: Merge x86_64 and aarch64 init.cpp files
This commit is contained in:
Timon Kruiper
Andrew Kaster
parent
c31dc82b17
commit
bd2011406e
4 changed files with 62 additions and 217 deletions
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@ -8,6 +8,7 @@
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#include <AK/Types.h>
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#include <Kernel/Arch/Delay.h>
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#include <Kernel/Bus/PCI/Initializer.h>
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#include <Kernel/Process.h>
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#include <Kernel/Sections.h>
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#include <Kernel/kstdio.h>
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@ -28,38 +29,16 @@ namespace Kernel::PCI {
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bool g_pci_access_io_probe_failed { false };
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bool g_pci_access_is_disabled_from_commandline { true };
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void initialize()
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{
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dbgln("PCI: FIXME: Enable PCI for aarch64 platforms");
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g_pci_access_io_probe_failed = true;
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}
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// x86 init
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multiboot_module_entry_t multiboot_copy_boot_modules_array[16];
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size_t multiboot_copy_boot_modules_count;
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extern "C" {
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READONLY_AFTER_INIT PhysicalAddress start_of_prekernel_image;
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READONLY_AFTER_INIT PhysicalAddress end_of_prekernel_image;
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READONLY_AFTER_INIT size_t physical_to_virtual_offset;
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// READONLY_AFTER_INIT FlatPtr kernel_mapping_base;
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READONLY_AFTER_INIT FlatPtr kernel_load_base;
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READONLY_AFTER_INIT PhysicalAddress boot_pml4t;
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READONLY_AFTER_INIT PhysicalAddress boot_pdpt;
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READONLY_AFTER_INIT PhysicalAddress boot_pd0;
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READONLY_AFTER_INIT PhysicalAddress boot_pd_kernel;
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READONLY_AFTER_INIT Kernel::Memory::PageTableEntry* boot_pd_kernel_pt1023;
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READONLY_AFTER_INIT char const* kernel_cmdline;
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READONLY_AFTER_INIT u32 multiboot_flags;
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READONLY_AFTER_INIT multiboot_memory_map_t* multiboot_memory_map;
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READONLY_AFTER_INIT size_t multiboot_memory_map_count;
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READONLY_AFTER_INIT multiboot_module_entry_t* multiboot_modules;
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READONLY_AFTER_INIT size_t multiboot_modules_count;
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READONLY_AFTER_INIT PhysicalAddress multiboot_framebuffer_addr;
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READONLY_AFTER_INIT u32 multiboot_framebuffer_pitch;
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READONLY_AFTER_INIT u32 multiboot_framebuffer_width;
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READONLY_AFTER_INIT u32 multiboot_framebuffer_height;
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READONLY_AFTER_INIT u8 multiboot_framebuffer_bpp;
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READONLY_AFTER_INIT u8 multiboot_framebuffer_type;
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}
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extern "C" {
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FlatPtr kernel_mapping_base;
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// kprintf.cpp
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void set_serial_debug_enabled(bool)
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{
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dbgln("FIXME: Add support for changing state of serial debugging");
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}
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@ -1,180 +0,0 @@
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/*
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* Copyright (c) 2021, Nico Weber <thakis@chromium.org>
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* Copyright (c) 2021, Marcin Undak <mcinek@gmail.com>
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* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
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* Copyright (c) 2022, the SerenityOS developers.
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* Copyright (c) 2022, Filiph Sandström <filiph.sandstrom@filfatstudios.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Format.h>
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#include <AK/Types.h>
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#include <Kernel/Arch/InterruptManagement.h>
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#include <Kernel/Arch/Interrupts.h>
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#include <Kernel/Arch/Processor.h>
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#include <Kernel/Arch/aarch64/ASM_wrapper.h>
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#include <Kernel/Arch/aarch64/BootPPMParser.h>
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#include <Kernel/Arch/aarch64/CPU.h>
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#include <Kernel/Arch/aarch64/RPi/Framebuffer.h>
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#include <Kernel/Arch/aarch64/RPi/Mailbox.h>
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#include <Kernel/Arch/aarch64/RPi/UART.h>
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#include <Kernel/Arch/aarch64/Registers.h>
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#include <Kernel/Arch/aarch64/TrapFrame.h>
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#include <Kernel/CommandLine.h>
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#include <Kernel/Devices/DeviceManagement.h>
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#include <Kernel/FileSystem/VirtualFileSystem.h>
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#include <Kernel/Graphics/Console/BootFramebufferConsole.h>
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#include <Kernel/KSyms.h>
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#include <Kernel/Memory/MemoryManager.h>
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#include <Kernel/Panic.h>
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#include <Kernel/Scheduler.h>
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#include <Kernel/Storage/StorageManagement.h>
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#include <Kernel/TTY/VirtualConsole.h>
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typedef void (*ctor_func_t)();
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extern ctor_func_t start_heap_ctors[];
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extern ctor_func_t end_heap_ctors[];
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extern ctor_func_t start_ctors[];
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extern ctor_func_t end_ctors[];
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// FIXME: Share this with the Intel Prekernel.
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extern uintptr_t __stack_chk_guard;
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uintptr_t __stack_chk_guard;
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READONLY_AFTER_INIT bool g_in_early_boot;
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namespace Kernel {
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extern "C" [[noreturn]] void halt();
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extern "C" [[noreturn]] void init();
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ALWAYS_INLINE static Processor& bootstrap_processor()
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{
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alignas(Processor) static u8 bootstrap_processor_storage[sizeof(Processor)];
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return (Processor&)bootstrap_processor_storage;
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}
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Atomic<Graphics::Console*> g_boot_console;
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VirtualConsole* tty0;
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ProcessID g_init_pid { 0 };
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static void init_stage2(void*);
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void init_stage2(void*)
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{
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Process::register_new(Process::current());
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auto firmware_version = RPi::Mailbox::the().query_firmware_version();
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dmesgln("RPi: Firmware version: {}", firmware_version);
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VirtualFileSystem::initialize();
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StorageManagement::the().initialize(kernel_command_line().root_device(), kernel_command_line().is_force_pio(), kernel_command_line().is_nvme_polling_enabled());
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if (VirtualFileSystem::the().mount_root(StorageManagement::the().root_filesystem()).is_error()) {
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PANIC("VirtualFileSystem::mount_root failed");
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}
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// Switch out of early boot mode.
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g_in_early_boot = false;
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LockRefPtr<Thread> thread;
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auto userspace_init = kernel_command_line().userspace_init();
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auto init_args = kernel_command_line().userspace_init_args();
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auto init_or_error = Process::try_create_user_process(thread, userspace_init, UserID(0), GroupID(0), move(init_args), {}, tty0);
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if (init_or_error.is_error())
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PANIC("init_stage2: Error spawning init process: {}", init_or_error.error());
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g_init_pid = init_or_error.value()->pid();
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thread->set_priority(THREAD_PRIORITY_HIGH);
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Process::current().sys$exit(0);
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VERIFY_NOT_REACHED();
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}
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extern "C" [[noreturn]] void init()
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{
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g_in_early_boot = true;
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// FIXME: Don't hardcode this
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multiboot_memory_map_t mmap[] = {
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{ sizeof(struct multiboot_mmap_entry) - sizeof(u32),
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(u64)0x0,
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(u64)0x3F000000,
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MULTIBOOT_MEMORY_AVAILABLE }
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};
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multiboot_memory_map = mmap;
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multiboot_memory_map_count = 1;
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dbgln("Welcome to Serenity OS!");
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dbgln("Imagine this being your ideal operating system.");
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dbgln("Observed deviations from that ideal are shortcomings of your imagination.");
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dbgln();
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CommandLine::early_initialize("");
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new (&bootstrap_processor()) Processor();
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bootstrap_processor().early_initialize(0);
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// We call the constructors of kmalloc.cpp separately, because other constructors in the Kernel
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// might rely on being able to call new/kmalloc in the constructor. We do have to run the
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// kmalloc constructors, because kmalloc_init relies on that.
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for (ctor_func_t* ctor = start_heap_ctors; ctor < end_heap_ctors; ctor++)
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(*ctor)();
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kmalloc_init();
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bootstrap_processor().initialize(0);
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load_kernel_symbol_table();
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CommandLine::initialize();
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dmesgln("Starting SerenityOS...");
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Memory::MemoryManager::initialize(0);
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DeviceManagement::initialize();
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SysFSComponentRegistry::initialize();
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DeviceManagement::the().attach_null_device(*NullDevice::must_initialize());
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// Invoke all static global constructors in the kernel.
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// Note that we want to do this as early as possible.
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for (ctor_func_t* ctor = start_ctors; ctor < end_ctors; ctor++)
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(*ctor)();
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RPi::Framebuffer::initialize();
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auto& framebuffer = RPi::Framebuffer::the();
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if (framebuffer.initialized()) {
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g_boot_console = &try_make_lock_ref_counted<Graphics::BootFramebufferConsole>(PhysicalAddress((PhysicalPtr)framebuffer.gpu_buffer()), framebuffer.width(), framebuffer.height(), framebuffer.pitch()).value().leak_ref();
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framebuffer.draw_logo(static_cast<Graphics::BootFramebufferConsole*>(g_boot_console.load())->unsafe_framebuffer_data());
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}
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initialize_interrupts();
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InterruptManagement::initialize();
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Processor::enable_interrupts();
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// Note: We have to disable interrupts otherwise Scheduler::timer_tick might be called before the scheduler is started.
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Processor::disable_interrupts();
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TimeManagement::initialize(0);
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Process::initialize();
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Scheduler::initialize();
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{
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LockRefPtr<Thread> init_stage2_thread;
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(void)Process::create_kernel_process(init_stage2_thread, KString::must_create("init_stage2"sv), init_stage2, nullptr, THREAD_AFFINITY_DEFAULT, Process::RegisterProcess::No);
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// We need to make sure we drop the reference for init_stage2_thread
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// before calling into Scheduler::start, otherwise we will have a
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// dangling Thread that never gets cleaned up
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}
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Scheduler::start();
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VERIFY_NOT_REACHED();
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}
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}
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