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Disabled the optimization of not doing an invltlb_1pg() when changing

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pte's from zero.  The TLB is supposed to be invalidated when pte's are
changed _to_ zero, but this doesn't occur in all cases for global pages
(PG_G stops invltlb() from working, and invltlb_1pg() is not used
enough).

PR:		14141, 16568
Submitted by:	dillon
This commit is contained in:
Bruce Evans 2000-03-13 14:47:46 +00:00
parent 023caa7b58
commit 311b554beb
2 changed files with 8 additions and 8 deletions
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8
sys/amd64/amd64/pmap.c
View File

@ -781,8 +781,8 @@ pmap_kenter(va, pa)
pte = (unsigned *)vtopte(va);
opte = *pte;
*pte = npte;
if (opte)
invltlb_1pg(va);
/*if (opte)*/
invltlb_1pg(va); /* XXX what about SMP? */
}
/*
@ -796,7 +796,7 @@ pmap_kremove(va)
pte = (unsigned *)vtopte(va);
*pte = 0;
invltlb_1pg(va);
invltlb_1pg(va); /* XXX what about SMP? */
}
/*
@ -2183,7 +2183,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_offset_t pa, vm_prot_t prot,
*/
if ((origpte & ~(PG_M|PG_A)) != newpte) {
*pte = newpte | PG_A;
if (origpte) {
/*if (origpte)*/ {
#ifdef SMP
cpu_invlpg((void *)va);
if (pmap->pm_active & other_cpus)

8
sys/i386/i386/pmap.c
View File

@ -781,8 +781,8 @@ pmap_kenter(va, pa)
pte = (unsigned *)vtopte(va);
opte = *pte;
*pte = npte;
if (opte)
invltlb_1pg(va);
/*if (opte)*/
invltlb_1pg(va); /* XXX what about SMP? */
}
/*
@ -796,7 +796,7 @@ pmap_kremove(va)
pte = (unsigned *)vtopte(va);
*pte = 0;
invltlb_1pg(va);
invltlb_1pg(va); /* XXX what about SMP? */
}
/*
@ -2183,7 +2183,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_offset_t pa, vm_prot_t prot,
*/
if ((origpte & ~(PG_M|PG_A)) != newpte) {
*pte = newpte | PG_A;
if (origpte) {
/*if (origpte)*/ {
#ifdef SMP
cpu_invlpg((void *)va);
if (pmap->pm_active & other_cpus)