1991/1005/pc/mmu.c (diff list | history)

1991/1004/sys/src/9/pc/mmu.c:297,302 – 1991/1005/sys/src/9/pc/mmu.c:297,303 (short | long | prev | next)
1991/0718		ulong *pt; Proc *p;
1991/1004		char err[64];
1991/1005		int x;
1991/0718		if(u==0) panic("putmmu");
1991/1004/sys/src/9/pc/mmu.c:313,320 – 1991/1005/sys/src/9/pc/mmu.c:314,329
1991/1004		* into it.
1991/0718		*/
1991/1004		if(p->mmutop == 0){ p->mmutop = mmugetpage(0); memmove((void*)p->mmutop->va, (void*)ktoppg.va, BY2PG);
1991/1005		/* * N.B. The assignment to pg is neccessary. * We can't assign to p->mmutop until after * copying ktoppg into the new page since we might * get scheded in this code and p->mmutop will be * pointing to a bad map. */ pg = mmugetpage(0); memmove((void*)pg->va, (void*)ktoppg.va, BY2PG); p->mmutop = pg;
1991/1004		} top = (ulong*)p->mmutop->va;
1991/0718