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Avoid flushing of global TLB entries for differing ASIDs (Thiemo Seufer).

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1778 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2006-03-11 16:39:23 +00:00
parent ecd78a0ac7
commit 09c56b842e
1 changed files with 3 additions and 2 deletions
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5
target-mips/op_helper.c
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@ -625,13 +625,14 @@ void do_tlbp (void)
void do_tlbr (void)
{
tlb_t *tlb;
uint8_t ASID;
int size;
ASID = env->CP0_EntryHi & 0xFF;
tlb = &env->tlb[env->CP0_index & (MIPS_TLB_NB - 1)];
/* If this will change the current ASID, flush qemu's TLB. */
/* FIXME: Could avoid flushing things which match global entries... */
if ((env->CP0_EntryHi & 0xFF) != tlb->ASID)
if (ASID != tlb->ASID && tlb->G != 1)
tlb_flush (env, 1);
env->CP0_EntryHi = tlb->VPN | tlb->ASID;