create ourvm file to implement vm functions
coremap initialization
Merge branch 'coremap' of github.com:cse451/os161 into kpages
Initial commit of somewhat compiling tlb and addrspace code.
Actually added files
finished coremap and its interface
Merge branch 'coremap' of github.com:cse451/os161 into kpages
Merge branch 'addrspace' of github.com:cse451/os161 into kpages
extend coremap with function get_page_index(vaddr); alloc_kpages and free_kpages implemented, but need to be tested; have compiling errors...  undefined reference to vm_fault, so don't merge if you can not fix it
Changed segments to use set indices, and commented out vm_fault
KASSERTs in alloc_kpages replaced by return NULL
Merge branch 'addrspace' into coremap
Finished implementing vm_fault for STEP1
Merged coremap into addrspace and fixed a warning in vm.c so it compiles, but panics on startup
removed coremap bootstrap from cvm botostrap
Merge branch 'addrspace' into coremap
Fixed paging in vm_fault and added comments
Fixed TLB entry creation to use paddr indices, not kvaddr indices.
added bookkeeping
Merge branch 'addrspace' of github.com:cse451/os161 into coremap

Conflicts:
	kern/arch/mips/vm/vm.c