311 lines
11 KiB
C++
311 lines
11 KiB
C++
/******************************************************************************
|
|
|
|
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
|
|
|
|
This file is part of Sortix.
|
|
|
|
Sortix 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 3 of the License, or (at your option) any later
|
|
version.
|
|
|
|
Sortix 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 Sortix. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
kernel.cpp
|
|
A common interface shared by all devices that can be printed text to.
|
|
|
|
******************************************************************************/
|
|
|
|
#include "platform.h"
|
|
#include <libmaxsi/memory.h>
|
|
#include <libmaxsi/string.h>
|
|
#include <libmaxsi/format.h>
|
|
#include "log.h"
|
|
#include "panic.h"
|
|
#include "descriptor_tables.h"
|
|
#include "time.h"
|
|
#include "keyboard.h"
|
|
#include "multiboot.h"
|
|
#include "memorymanagement.h"
|
|
#include "thread.h"
|
|
#include "process.h"
|
|
#include "scheduler.h"
|
|
#include "syscall.h"
|
|
#include "pci.h"
|
|
#include "uart.h"
|
|
#include "serialterminal.h"
|
|
#include "vgaterminal.h"
|
|
#include "elf.h"
|
|
#include "initrd.h"
|
|
#include "vga.h"
|
|
#include "sound.h"
|
|
#include "io.h"
|
|
#include "pipe.h"
|
|
#include "filesystem.h"
|
|
#include "mount.h"
|
|
|
|
using namespace Maxsi;
|
|
|
|
void* RunApplication(void* Parameter);
|
|
|
|
extern "C" size_t stack[4096] = {0};
|
|
extern "C" size_t stackend = 0;
|
|
|
|
namespace Sortix
|
|
{
|
|
#ifdef PLATFORM_HTTP
|
|
namespace HTTP { void Init(); }
|
|
#endif
|
|
|
|
void DoBSoD()
|
|
{
|
|
#ifdef PLATFORM_SERIAL
|
|
UART::WriteChar(27);
|
|
UART::WriteChar(91);
|
|
UART::WriteChar(48 + 4);
|
|
UART::WriteChar(48 + 4);
|
|
UART::WriteChar(109);
|
|
#endif
|
|
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print("Windows Boot Manager has experienced a problem. ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" Status: 0xc000000f ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" Info: An error occured during transferring execution. ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print("You can try to recover the system with the Microsoft Windows System Recovery ");
|
|
Log::Print("Tools. (You might need to restart the system manually). ");
|
|
Log::Print(" ");
|
|
Log::Print("If the problem continues, please contact your system administrator or computer ");
|
|
Log::Print("manufacturer. ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
Log::Print(" ");
|
|
|
|
#ifdef JSSORTIX
|
|
JSSortix::Exit();
|
|
#else
|
|
while ( true ) { }
|
|
#endif
|
|
}
|
|
|
|
void DoMaxsiLogo()
|
|
{
|
|
Log::Print(" _ \n");
|
|
Log::Print(" / \\ \n");
|
|
Log::Print(" /\\ /\\ / \\ \n");
|
|
Log::Print(" / \\ / \\ | | \n");
|
|
Log::Print(" / \\/ \\ | | \n");
|
|
Log::Print(" | O O \\_______________________ / | \n");
|
|
Log::Print(" | | \n");
|
|
Log::Print(" | \\_______/ / \n");
|
|
Log::Print(" \\ / \n");
|
|
Log::Print(" ------ --------------- ---/ \n");
|
|
Log::Print(" / \\ / \\ \n");
|
|
Log::Print(" / \\ / \\ \n");
|
|
Log::Print(" / \\ / \\ \n");
|
|
Log::Print(" /_____________\\ /____________\\ \n");
|
|
Log::Print(" \n");
|
|
Log::Print(" BOOTING OPERATING SYSTEM... ");
|
|
}
|
|
|
|
void DoWelcome()
|
|
{
|
|
#ifdef BSOD
|
|
DoBSoD();
|
|
#endif
|
|
|
|
DoMaxsiLogo();
|
|
}
|
|
|
|
extern "C" void KernelInit(unsigned long Magic, multiboot_info_t* BootInfo)
|
|
{
|
|
#ifdef JSSORTIX
|
|
// TODO: Make JSVM multiboot compliant.
|
|
multiboot_info_t MBInfo; BootInfo = &MBInfo;
|
|
multiboot_memory_map_t MBMMap;
|
|
|
|
MBMMap.addr = 0x100000;
|
|
MBMMap.len = 0xC00000;
|
|
MBMMap.type = MULTIBOOT_MEMORY_AVAILABLE;
|
|
MBMMap.size = sizeof(MBMMap) - sizeof(MBMMap.size);
|
|
BootInfo->flags = MULTIBOOT_INFO_MEM_MAP;
|
|
BootInfo->mmap_addr = (multiboot_uint32_t) &MBMMap;
|
|
BootInfo->mmap_length = sizeof(MBMMap);
|
|
#endif
|
|
|
|
// Initialize system calls.
|
|
Syscall::Init();
|
|
|
|
// Initialize the default terminal.
|
|
Maxsi::Format::Callback logcallback;
|
|
void* logpointer;
|
|
|
|
#if PLATFORM_SERIAL
|
|
// Initialize the serial driver.
|
|
UART::Init();
|
|
|
|
SerialTerminal::Init();
|
|
logcallback = SerialTerminal::Print;
|
|
logpointer = NULL;
|
|
|
|
#else
|
|
VGATerminal::Init();
|
|
logcallback = VGATerminal::Print;
|
|
logpointer = NULL;
|
|
|
|
#endif
|
|
|
|
// Initialize the kernel log.
|
|
Log::Init(logcallback, logpointer);
|
|
|
|
// Just a test to see if the color system works! Make the BG red!
|
|
Log::Print("\e[37;41m\e[2J");
|
|
|
|
// Display the boot welcome screen.
|
|
DoWelcome();
|
|
|
|
#ifndef JSSORTIX
|
|
// Search for PCI devices and load their drivers.
|
|
PCI::Init();
|
|
#endif
|
|
|
|
// Initialize the paging and virtual memory.
|
|
Memory::Init(BootInfo);
|
|
|
|
uint8_t* initrd = NULL;
|
|
size_t initrdsize = 0;
|
|
|
|
#ifndef JSSORTIX
|
|
uint8_t** modules = (uint8_t**) BootInfo->mods_addr;
|
|
for ( uint32_t I = 0; I < BootInfo->mods_count; I++ )
|
|
{
|
|
initrdsize = modules[2*I+1] - modules[2*I+0];
|
|
initrd = modules[2*I+0];
|
|
break;
|
|
}
|
|
#else
|
|
// TODO: UGLY HACK because JSVM doesn't support multiboot yet!
|
|
initrd = (uint8_t*) 0x180000UL;
|
|
initrdsize = 0x80000; // 512 KiB
|
|
#endif
|
|
|
|
if ( initrd == NULL ) { PanicF("No initrd provided"); }
|
|
|
|
// Initialize the GDT and TSS structures.
|
|
GDT::Init();
|
|
|
|
#ifdef PLATFORM_X64
|
|
Log::Print("Halt: CPU X64 cannot boot because interrupts are not yet "
|
|
"supported under 64-bit Sortix.\n");
|
|
Log::Print("Sorry, it simply isn't possible to fully boot Sortix in x64 mode yet.\n");
|
|
Log::Print("X64 may be working when Sortix 0.5 comes out, or try the git master.\n");
|
|
while(true);
|
|
#endif
|
|
|
|
// Initialize the interrupt descriptor tables.
|
|
IDT::Init();
|
|
|
|
if ( BootInfo == NULL ) { Panic("kernel.cpp: The bootinfo structure was NULL. Are your bootloader multiboot compliant?"); }
|
|
|
|
// Initialize the kernel heap.
|
|
Maxsi::Memory::Init();
|
|
|
|
// Initialize the keyboard.
|
|
Keyboard::Init();
|
|
|
|
// Initialize the VGA driver.
|
|
VGA::Init();
|
|
|
|
// Initialize the sound driver.
|
|
Sound::Init();
|
|
|
|
// Initialize the process system.
|
|
Process::Init();
|
|
|
|
// Initialize the IO system.
|
|
IO::Init();
|
|
|
|
// Initialize the pipe system.
|
|
Pipe::Init();
|
|
|
|
// Initialize the filesystem system.
|
|
FileSystem::Init();
|
|
|
|
// Initialize the mount system.
|
|
Mount::Init();
|
|
|
|
// Initialize the scheduler.
|
|
Scheduler::Init();
|
|
|
|
// Set up the initial ram disk.
|
|
InitRD::Init(initrd, initrdsize);
|
|
|
|
// Alright, now the system's drivers are loaded and initialized. It is
|
|
// time to load the initial user-space programs and start execution of
|
|
// the actual operating system.
|
|
|
|
byte* program;
|
|
size_t programsize;
|
|
|
|
// Create an address space for the idle process.
|
|
addr_t idleaddrspace = Memory::Fork();
|
|
if ( !idleaddrspace ) { Panic("could not fork an idle process"); }
|
|
|
|
// Create an address space for the initial process.
|
|
addr_t initaddrspace = Memory::Fork();
|
|
if ( !initaddrspace ) { Panic("could not fork an initial process"); }
|
|
|
|
// Create the system idle process.
|
|
Process* idle = new Process;
|
|
if ( !idle ) { Panic("could not allocate idle process"); }
|
|
idle->addrspace = idleaddrspace;
|
|
Memory::SwitchAddressSpace(idleaddrspace);
|
|
Scheduler::SetDummyThreadOwner(idle);
|
|
program = InitRD::Open("idle", &programsize);
|
|
if ( program == NULL ) { PanicF("initrd did not contain 'idle'"); }
|
|
addr_t idlestart = ELF::Construct(idle, program, programsize);
|
|
if ( !idlestart ) { Panic("could not construct ELF image for idle process"); }
|
|
Thread* idlethread = CreateThread(idlestart);
|
|
if ( !idlethread ) { Panic("could not create thread for the idle process"); }
|
|
Scheduler::SetIdleThread(idlethread);
|
|
|
|
// Create the initial process.
|
|
Process* init = new Process;
|
|
if ( !init ) { Panic("could not allocate init process"); }
|
|
init->addrspace = initaddrspace;
|
|
Memory::SwitchAddressSpace(initaddrspace);
|
|
Scheduler::SetDummyThreadOwner(init);
|
|
program = InitRD::Open("init", &programsize);
|
|
if ( program == NULL ) { PanicF("initrd did not contain 'init'"); }
|
|
addr_t initstart = ELF::Construct(init, program, programsize);
|
|
if ( !initstart ) { Panic("could not construct ELF image for init process"); }
|
|
Thread* initthread = CreateThread(initstart);
|
|
if ( !initthread ) { Panic("could not create thread for the init process"); }
|
|
Scheduler::SetInitProcess(init);
|
|
|
|
// Lastly set up the timer driver and we are ready to run the OS.
|
|
Time::Init();
|
|
|
|
// Run the OS.
|
|
Scheduler::MainLoop();
|
|
}
|
|
}
|