138 lines
4.0 KiB
C++
138 lines
4.0 KiB
C++
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#include "./arch/lapic.h"
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#include "./debug/output.h"
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#include "./types.h" // This is actually used
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#include "arch/core_interrupt.h"
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#include "memory/page.h"
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#include "memory/pageframealloc.h"
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#include "memory/pagetable.h"
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#include "object/outputstream.h"
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#include "syscall/handler.h"
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#include "./device/textstream.h"
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#include "./debug/copystream.h"
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#include "./device/serialstream.h"
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// Separate title window on first line (for simplicity at scrolling)
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void PageFrameAllocator::init();
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static TextStream tout(0, CGA::COLUMNS, 0, 1);
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SerialStream sout;
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TextStream dout(0, 80, 17, 25);
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CopyStream copystream(&dout, &sout);
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OutputStream* copyout = ©stream;
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#include "./arch/core.h"
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#include "./arch/ioapic.h"
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#include "./device/ps2controller.h"
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#include "./interrupt/guard.h"
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#include "./boot/multiboot/data.h"
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#include "./sync/semaphore.h"
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#include "./memory/pageframealloc.h"
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//Semaphore koutsem(1);
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//TextStream kout(0, 80, 1, 17, true);
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// Applications
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#include "./user/app1/appl.h"
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#include "./user/app2/kappl.h"
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//alignas(4096) four_lvl_paging_t paging_tree;
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//four_lvl_paging_t paging_tree;
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alignas(4096) pagetable_t identity_table[KERNEL_MEMORY_BORDER/4096/512];
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//static const uint32_t NUM_APPS = 9;
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//Application apps[NUM_APPS];
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//static KeyboardApplication kapp;
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// Main function
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extern "C" int main() {
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PageFrameAllocator::stats();
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Multiboot::Module* initrd = Multiboot::getModule(0);
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DBG << "initrd address: " << hex << initrd->getStartAddress() << endl << "initrd size: " << initrd->getSize() << endl;
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//memcpy((void *)0x4000000, initrd->getStartAddress(), initrd->getSize());
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//mark_pageframes(0x4000000, 0x4000000 + initrd->getSize(), false);
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write_identity_map(identity_table, KERNEL_MEMORY_BORDER);
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//create_basic_page_table(&paging_tree, identity_table);
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//load_cr3((void*)&paging_tree.l4);
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tout.reset();
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tout.setPos(33, 0);
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tout << OS_NAME << " (2.x)" << flush;
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//// double faults correctly
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//volatile uint16_t test1 = 0;
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//volatile uint16_t test = 8/test1;
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// Initialize IOAPIC
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IOAPIC::init();
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// Init timer (1000us = 1ms)
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LAPIC::Timer::setup(10000);
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// Activate Keyboard
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PS2Controller::init();
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Syscall::init();
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// Enter Level 1/2
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Guarded g = Guard::enter();
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uint32_t (*apps_header)[1024] = (uint32_t (*)[1024])Multiboot::getModule(0)->getStartAddress();
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uint64_t offset = 1;
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for(uint16_t i = 1; i <= (*apps_header)[0]; i++){
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uint64_t appsize = (*apps_header)[i];
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uintptr_t appstart = (uintptr_t)apps_header+(offset<<12);
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DBG << "app " << i << " size " << appsize << " at " << appstart << endl;
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Thread* thread_ptr= new Thread(false, (void*)0x4000000, (void*)appstart, (appsize/4096)+1); //TODO fix edgecase on size=4096
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g.vault().thread_list[thread_ptr->id] = thread_ptr;
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g.vault().scheduler.ready(thread_ptr); //TODO fix edgecase on size=4096
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offset += 1+(appsize/4096);
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}
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//Thread* thread_ptr = new Thread(false, (void*)0x4000000, (void*)0x4001000, 2);
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//g.vault().scheduler.ready(thread_ptr);
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//g.vault().thread_list[thread_ptr->id] = thread_ptr;
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//for(void* p=Multiboot::getModule(0)->getStartAddress(); p<Multiboot::getModule(0)->getEndAddress(); p=(void*)((uintptr_t)p+4096)){
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// DBG << "module at: " << hex << p << endl;
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// g.vault().scheduler.ready(new Thread(false, p));
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//}
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//g.vault().scheduler.ready(new Thread(false, (void*)0x4001000));
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//for (uint32_t i = 0; i < NUM_APPS; ++i) {
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// g.vault().scheduler.ready(&(apps[i]));
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//}
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//g.vault().scheduler.ready(&kapp);
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// Enable Interrupts
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Core::Interrupt::enable();
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/* Activate timer
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* Be careful:
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* If enabled early and interrupts are enabled, it might start scheduling
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* (resume in epilogue) and dispatch the first app, never returning back to
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* main and finish initialization.
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* Therefore activate the LAPIC timer in level 1/2 after initialization
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* (just before schedule())
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*/
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LAPIC::Timer::activate();
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DBG_VERBOSE << "Schedule..." << endl;
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// Schedule first app
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g.vault().scheduler.schedule();
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return 0;
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}
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