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Added interrupt handling

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This commit is contained in:
Nathan Giddings
2020-07-09 21:58:52 -05:00
parent be7a17596d
commit cff8965940
7 changed files with 93 additions and 29 deletions
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33
src/quarkkernel.cpp
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@@ -6,30 +6,47 @@
#include "memorymap.hpp"
#include "buddyallocator.hpp"
#include "addressspace.hpp"
#include "interruptdescriptor.hpp"
#include "inthandlers.hpp"
#include "pio.hpp"
#include "tty.h"
using namespace kernel;
extern SystemInfo system_info;
extern MemoryMap::Region memory_map;
extern InterruptDescriptor idt;
extern "C" void __cxa_pure_virtual()
{
}
void main(char* cmdline)
{
TTY tty((char*) 0xC00B8000);
TTY tty((char*) 0xC00B8000);
tty << "--Quark Kernel--\n";
tty << "Low memory: \t" << (int) system_info.getLowMemory() << " KiB\n";
tty << "High memory:\t" << (int) system_info.getHighMemory() << " KiB\n";
tty << "Type\t\tLocation\t\tSize\n";
MemoryMap memmap(&memory_map, 16);
for(size_t i = 0; i < memmap.size() && memmap[i].getSize() > 0; i++)
for(size_t i = 0; i < memmap.size() && memmap[i].getSize() > 0; i++)
{
tty << (int) memmap[i].getType() << "\t\t\t"
<< (void*) memmap[i].getLocation() << "\t\t"
<< (int) memmap[i].getSize() << "\n";
tty << (int) memmap[i].getType() << "\t\t\t";
tty << (void*) memmap[i].getLocation() << "\t\t";
tty << (int) memmap[i].getSize() << "\n";
}
BuddyAllocator alloc(memmap, (char*) 0xC0000000,
system_info.getHighMemory() / 4 + 256, 6);
BuddyAllocator alloc(memmap, (char*) 0xC0000000, system_info.getHighMemory() / 4 + 256, 6);
AddressSpace vmem(alloc);
tty << vmem.mmap((void*) 0x80000000, 0x10000) << '\n';
vmem.mmap((void*) 0x80000000, 0x10000);
InterruptDescriptor* interruptTable = &idt;
interruptTable[0] = InterruptDescriptor((void*) &divisionByZero, InterruptDescriptor::INT32, 0);
interruptTable[8] = InterruptDescriptor((void*) &doubleFaultHandler, InterruptDescriptor::INT32, 0);
interruptTable[14] = InterruptDescriptor((void*) &pageFaultHandler, InterruptDescriptor::INT32, 0);
//for(int i = 1; i < 32; i++)
// interruptTable[i] = InterruptDescriptor((void*) &pageFaultHandler, InterruptDescriptor::INT32, 0);
outb(0xa1, 0xff);
outb(0x21, 0xff);
asm("sti");
tty << "Nothing left to do. Hanging.\n";
}