diff options
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index 7a93e76..73f1250 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -6533,7 +6533,7 @@ static int pmap_change_attr_locked(vm_offset_t va, vm_size_t size, int mode) { vm_offset_t base, offset, tmpva; - vm_paddr_t pa_start, pa_end; + vm_paddr_t pa_start, pa_end, pa_end1; pdp_entry_t *pdpe; pd_entry_t *pde; pt_entry_t *pte; @@ -6716,9 +6716,12 @@ pmap_change_attr_locked(vm_offset_t va, vm_size_t size, int mode) tmpva += PAGE_SIZE; } } - if (error == 0 && pa_start != pa_end) - error = pmap_change_attr_locked(PHYS_TO_DMAP(pa_start), - pa_end - pa_start, mode); + if (error == 0 && pa_start != pa_end && pa_start < dmaplimit) { + pa_end1 = MIN(pa_end, dmaplimit); + if (pa_start != pa_end1) + error = pmap_change_attr_locked(PHYS_TO_DMAP(pa_start), + pa_end1 - pa_start, mode); + } /* * Flush CPU caches if required to make sure any data isn't cached that |
