diff options
Diffstat (limited to 'sys/arm/arm/physmem.c')
| -rw-r--r-- | sys/arm/arm/physmem.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/arm/arm/physmem.c b/sys/arm/arm/physmem.c index 566ab85..999d38c 100644 --- a/sys/arm/arm/physmem.c +++ b/sys/arm/arm/physmem.c @@ -292,9 +292,13 @@ arm_physmem_hardware_region(vm_paddr_t pa, vm_size_t sz) * than leave some folks with an unusable system while we investigate. */ if (pa == 0) { + if (sz <= PAGE_SIZE) + return; pa = PAGE_SIZE; sz -= PAGE_SIZE; } else if (pa + sz == 0) { + if (sz <= 1024 * 1024) + return; sz -= 1024 * 1024; } @@ -306,7 +310,7 @@ arm_physmem_hardware_region(vm_paddr_t pa, vm_size_t sz) pa = round_page(pa); sz = trunc_page(sz - adj); - if (hwcnt < nitems(hwregions)) + if (sz > 0 && hwcnt < nitems(hwregions)) insert_region(hwregions, hwcnt++, pa, sz, 0); } |
