xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

merge

Browse source
This commit is contained in:
cinap_lenrek 2020-07-16 03:12:31 +02:00
commit 61b1134df9
1 changed files with 9 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
sys/src/9/pc64/mmu.c
View file

@ -517,12 +517,17 @@ putmmu(uintptr va, uintptr pa, Page *)
void
checkmmu(uintptr va, uintptr pa)
{
uintptr *pte;
uintptr *pte, old;
int x;
x = splhi();
pte = mmuwalk(m->pml4, va, 0, 0);
if(pte != 0 && (*pte & PTEVALID) != 0 && PPN(*pte) != pa)
print("%ld %s: va=%#p pa=%#p pte=%#p\n",
up->pid, up->text, va, pa, *pte);
if(pte == 0 || ((old = *pte) & PTEVALID) == 0 || PPN(old) == pa){
splx(x);
return;
}
splx(x);
print("%ld %s: va=%#p pa=%#p pte=%#p\n", up->pid, up->text, va, pa, old);
}
uintptr