diff options
Diffstat (limited to 'sys/src/9/pc64/mmu.c')
| -rw-r--r-- | sys/src/9/pc64/mmu.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/sys/src/9/pc64/mmu.c b/sys/src/9/pc64/mmu.c index 8f1d45d71..74857b90f 100644 --- a/sys/src/9/pc64/mmu.c +++ b/sys/src/9/pc64/mmu.c @@ -82,8 +82,8 @@ mmuinit(void) didmmuinit = 1; /* zap double map done by l.s */ - m->pml4[0] = 0; m->pml4[512] = 0; + m->pml4[0] = 0; m->tss = mallocz(sizeof(Tss), 1); if(m->tss == nil) @@ -157,7 +157,7 @@ paddr(void *v) if(va >= KZERO) return va-KZERO; if(va >= VMAP) - return va-(VMAP-(-KZERO)); + return va-VMAP; panic("paddr: va=%#p pc=%#p", va, getcallerpc(&v)); return 0; } @@ -505,12 +505,7 @@ vmap(uintptr pa, int size) uintptr va; int o; - if(size <= 0 || pa >= -VMAP) - panic("vmap: pa=%#p size=%d pc=%#p", pa, size, getcallerpc(&pa)); - if(cankaddr(pa) >= size) - va = pa+KZERO; - else - va = pa+(VMAP-(-KZERO)); + va = pa+VMAP; /* * might be asking for less than a page. */ |