}
-
-
void
PageTable::allocate(Addr vaddr, int64_t size)
{
}
pTable[vaddr] = system->new_page();
- pTableCache[2].paddr = pTableCache[1].paddr;
- pTableCache[2].vaddr = pTableCache[1].vaddr;
- pTableCache[1].paddr = pTableCache[0].paddr;
- pTableCache[1].vaddr = pTableCache[0].vaddr;
- pTableCache[0].paddr = pTable[vaddr];
- pTableCache[0].vaddr = vaddr;
+ updateCache(vaddr, pTable[vaddr]);
}
}
Addr page_addr = pageAlign(vaddr);
paddr = 0;
- if (pTableCache[0].vaddr == vaddr) {
- paddr = pTableCache[0].paddr;
+ if (pTableCache[0].vaddr == page_addr) {
+ paddr = pTableCache[0].paddr + pageOffset(vaddr);
return true;
}
- if (pTableCache[1].vaddr == vaddr) {
- paddr = pTableCache[1].paddr;
+ if (pTableCache[1].vaddr == page_addr) {
+ paddr = pTableCache[1].paddr + pageOffset(vaddr);
return true;
}
- if (pTableCache[2].vaddr == vaddr) {
- paddr = pTableCache[2].paddr;
+ if (pTableCache[2].vaddr == page_addr) {
+ paddr = pTableCache[2].paddr + pageOffset(vaddr);
return true;
}
return false;
}
+ updateCache(page_addr, iter->second);
paddr = iter->second + pageOffset(vaddr);
return true;
}