d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove invalid cast to vm_offset_t to avoid truncating a physical address

Browse Source 
when doing pmap_kextract on a 2MB page.

Spotted by:	peter
Sponsored by:	DARPA, Network Associates Laboratories
This commit is contained in:
Jake Burkholder 2003-04-08 18:22:41 +00:00
parent c794881f8c
commit ac00210525
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/amd64/include/pmap.h
View File

@ -195,7 +195,7 @@ pmap_kextract(vm_offset_t va)
{
vm_paddr_t pa;
if ((pa = (vm_offset_t) PTD[va >> PDRSHIFT]) & PG_PS) {
if ((pa = PTD[va >> PDRSHIFT]) & PG_PS) {
pa = (pa & ~(NBPDR - 1)) | (va & (NBPDR - 1));
} else {
pa = *vtopte(va);

2
sys/i386/include/pmap.h
View File

@ -195,7 +195,7 @@ pmap_kextract(vm_offset_t va)
{
vm_paddr_t pa;
if ((pa = (vm_offset_t) PTD[va >> PDRSHIFT]) & PG_PS) {
if ((pa = PTD[va >> PDRSHIFT]) & PG_PS) {
pa = (pa & ~(NBPDR - 1)) | (va & (NBPDR - 1));
} else {
pa = *vtopte(va);