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Improve our detection of an attempted duplicate entry. We may be trying to

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change the page protection bits.
This commit is contained in:
Benno Rice 2002-05-10 06:27:08 +00:00
parent f2b85e7c82
commit fafc736254
3 changed files with 12 additions and 3 deletions
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5
sys/powerpc/aim/mmu_oea.c
View File

@ -1728,8 +1728,11 @@ pmap_pvo_enter(pmap_t pm, uma_zone_t zone, struct pvo_head *pvo_head,
*/
LIST_FOREACH(pvo, &pmap_pvo_table[ptegidx], pvo_olink) {
if (pvo->pvo_pmap == pm && PVO_VADDR(pvo) == va) {
if ((pvo->pvo_pte.pte_lo & PTE_RPGN) == pa)
if ((pvo->pvo_pte.pte_lo & PTE_RPGN) == pa &&
(pvo->pvo_pte.pte_lo & PTE_PP) ==
(pte_lo & PTE_PP)) {
return (0);
}
pmap_pvo_remove(pvo, -1);
break;
}

5
sys/powerpc/powerpc/mmu_oea.c
View File

@ -1728,8 +1728,11 @@ pmap_pvo_enter(pmap_t pm, uma_zone_t zone, struct pvo_head *pvo_head,
*/
LIST_FOREACH(pvo, &pmap_pvo_table[ptegidx], pvo_olink) {
if (pvo->pvo_pmap == pm && PVO_VADDR(pvo) == va) {
if ((pvo->pvo_pte.pte_lo & PTE_RPGN) == pa)
if ((pvo->pvo_pte.pte_lo & PTE_RPGN) == pa &&
(pvo->pvo_pte.pte_lo & PTE_PP) ==
(pte_lo & PTE_PP)) {
return (0);
}
pmap_pvo_remove(pvo, -1);
break;
}

5
sys/powerpc/powerpc/pmap.c
View File

@ -1728,8 +1728,11 @@ pmap_pvo_enter(pmap_t pm, uma_zone_t zone, struct pvo_head *pvo_head,
*/
LIST_FOREACH(pvo, &pmap_pvo_table[ptegidx], pvo_olink) {
if (pvo->pvo_pmap == pm && PVO_VADDR(pvo) == va) {
if ((pvo->pvo_pte.pte_lo & PTE_RPGN) == pa)
if ((pvo->pvo_pte.pte_lo & PTE_RPGN) == pa &&
(pvo->pvo_pte.pte_lo & PTE_PP) ==
(pte_lo & PTE_PP)) {
return (0);
}
pmap_pvo_remove(pvo, -1);
break;
}