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Kernel: Update the init stage to use all the latest changes

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gdt_init() and idt_init() will be invoked earlier in the boot process.
Also, setup_interrupts() will be called to setup the interrupt mode.
This commit is contained in:
Liav A 2020-02-22 20:47:31 +02:00 • committed by Andreas Kling
parent bb73802b15
commit 4448597c64
1 changed files with 44 additions and 7 deletions
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51
Kernel/init.cpp
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@ -33,10 +33,8 @@
#include <Kernel/ACPI/ACPIDynamicParser.h>
#include <Kernel/ACPI/ACPIStaticParser.h>
#include <Kernel/ACPI/DMIDecoder.h>
#include <Kernel/Arch/i386/APIC.h>
#include <Kernel/ACPI/MultiProcessorParser.h>
#include <Kernel/Arch/i386/CPU.h>
#include <Kernel/Arch/i386/PIC.h>
#include <Kernel/Arch/i386/PIT.h>
#include <Kernel/CMOS.h>
#include <Kernel/Devices/BXVGADevice.h>
#include <Kernel/Devices/DebugLogDevice.h>
@ -50,6 +48,7 @@
#include <Kernel/Devices/MBVGADevice.h>
#include <Kernel/Devices/NullDevice.h>
#include <Kernel/Devices/PATAChannel.h>
#include <Kernel/Devices/PIT.h>
#include <Kernel/Devices/PS2MouseDevice.h>
#include <Kernel/Devices/RandomDevice.h>
#include <Kernel/Devices/SB16.h>
@ -60,6 +59,9 @@
#include <Kernel/FileSystem/VirtualFileSystem.h>
#include <Kernel/Heap/SlabAllocator.h>
#include <Kernel/Heap/kmalloc.h>
#include <Kernel/Interrupts/APIC.h>
#include <Kernel/Interrupts/InterruptManagement.h>
#include <Kernel/Interrupts/PIC.h>
#include <Kernel/KParams.h>
#include <Kernel/Multiboot.h>
#include <Kernel/Net/LoopbackAdapter.h>
@ -86,6 +88,7 @@ static void setup_serial_debug();
static void setup_acpi();
static void setup_vmmouse();
static void setup_pci();
static void setup_interrupts();
VirtualConsole* tty0;
@ -103,8 +106,11 @@ extern "C" [[noreturn]] void init()
MemoryManager::initialize();
bool text_debug = KParams::the().has("text_debug");
gdt_init();
idt_init();
setup_acpi();
setup_interrupts();
new VFS;
new DebugLogDevice;
@ -115,10 +121,8 @@ extern "C" [[noreturn]] void init()
__stack_chk_guard = get_good_random<u32>();
PIT::initialize();
RTC::initialize();
PIC::initialize();
gdt_init();
idt_init();
// call global constructors after gtd and itd init
for (ctor_func_t* ctor = &start_ctors; ctor < &end_ctors; ctor++)
@ -291,7 +295,6 @@ void init_stage2()
}
}
}
auto e2fs = Ext2FS::create(root_dev);
if (!e2fs->initialize()) {
kprintf("init_stage2: couldn't open root filesystem\n");
@ -458,4 +461,38 @@ void setup_pci()
PCI::Initializer::the().dismiss();
}
static void setup_interrupt_management()
{
auto* madt = (ACPI_RAW::MADT*)ACPIParser::the().find_table("APIC");
if (!madt) {
InterruptManagement::initialize();
return;
}
AdvancedInterruptManagement::initialize(*madt);
}
void setup_interrupts()
{
setup_interrupt_management();
if (!KParams::the().has("smp")) {
InterruptManagement::the().switch_to_pic_mode();
return;
}
auto smp = KParams::the().get("smp");
if (smp == "off") {
InterruptManagement::the().switch_to_pic_mode();
return;
}
if (smp == "on") {
ASSERT_NOT_REACHED(); // FIXME: The IOAPIC mode is not stable yet so we can't use it now.
InterruptManagement::the().switch_to_ioapic_mode();
APIC::init();
APIC::enable_bsp();
return;
}
kprintf("smp boot argmuent has an invalid value.\n");
hang();
}
}