void setupHeap()
{
Allocator *parent;
PoolAllocator *pool;
Address heapAddr;
Size parentSize;
// TODO: inefficient. needs another kernel call. Make forkexec() have zero kernel calls and/or IPC until main() for
// maximum efficiency.
// TODO: ProcessCtl(SELF, InfoPID, &info);
// map = info.map....
Arch::MemoryMap map;
PageAllocator alloc( map.range(MemoryMap::UserHeap).virt,
map.range(MemoryMap::UserHeap).size );
// Pre-allocate 4 pages
Size sz = PAGESIZE * 4;
Address addr;
alloc.allocate(&sz, &addr);
// Allocate instance copy on vm pages itself
heapAddr = alloc.base();
parent = new (heapAddr) PageAllocator(&alloc);
parentSize = sizeof(PageAllocator);
// Make a pool
pool = new (heapAddr + parentSize) PoolAllocator();
pool->setParent(parent);
// Set default allocator
Allocator::setDefault(pool);
}
Kernel::Kernel(CoreInfo *info)
: Singleton<Kernel>(this), m_interrupts(256)
{
// Output log banners
if (Log::instance)
{
Log::instance->append(BANNER);
Log::instance->append(COPYRIGHT "\r\n");
}
// TODO: compute lower & higher memory for this core.
Memory::Range highMem;
Arch::MemoryMap map;
MemoryBlock::set(&highMem, 0, sizeof(highMem));
highMem.phys = info->memory.phys + map.range(MemoryMap::KernelData).size;
// Initialize members
m_alloc = new SplitAllocator(info->memory, highMem);
m_procs = new ProcessManager(new Scheduler());
m_api = new API();
m_coreInfo = info;
m_intControl = 0;
// Mark kernel memory used (first 4MB in phys memory)
for (Size i = 0; i < info->kernel.size; i += PAGESIZE)
m_alloc->allocate(info->kernel.phys + i);
// Mark BootImage memory used
for (Size i = 0; i < m_coreInfo->bootImageSize; i += PAGESIZE)
m_alloc->allocate(m_coreInfo->bootImageAddress + i);
// Clear interrupts table
m_interrupts.fill(ZERO);
}