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Bring TLB / PageSize handling in line with real hardware behaviour.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2341 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-01-21 03:12:25 +00:00
parent 8e71621f78
commit bc814401c2
2 changed files with 5 additions and 25 deletions
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22
target-mips/helper.c
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@ -50,7 +50,7 @@ static int map_address (CPUState *env, target_ulong *physical, int *prot,
tlb = &env->tlb[i];
/* Check ASID, virtual page number & size */
if ((tlb->G == 1 || tlb->ASID == ASID) &&
tlb->VPN == tag && address < tlb->end2) {
tlb->VPN == tag) {
/* TLB match */
n = (address >> TARGET_PAGE_BITS) & 1;
/* Check access rights */
@ -420,7 +420,6 @@ void do_interrupt (CPUState *env)
void invalidate_tlb (CPUState *env, int idx, int use_extra)
{
tlb_t *tlb;
target_ulong addr;
uint8_t ASID;
ASID = env->CP0_EntryHi & 0xFF;
@ -441,19 +440,8 @@ void invalidate_tlb (CPUState *env, int idx, int use_extra)
return;
}
if (tlb->V0) {
addr = tlb->VPN;
while (addr < tlb->end) {
tlb_flush_page (env, addr);
addr += TARGET_PAGE_SIZE;
}
}
if (tlb->V1) {
addr = tlb->end;
while (addr < tlb->end2) {
tlb_flush_page (env, addr);
addr += TARGET_PAGE_SIZE;
}
}
if (tlb->V0)
tlb_flush_page (env, tlb->VPN);
if (tlb->V1)
tlb_flush_page (env, tlb->VPN + TARGET_PAGE_SIZE);
}