[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] Don't flush global TLB entries
From: |
Thiemo Seufer |
Subject: |
[Qemu-devel] [PATCH] Don't flush global TLB entries |
Date: |
Tue, 21 Feb 2006 19:37:15 +0000 |
User-agent: |
Mutt/1.5.11+cvs20060126 |
Hello All,
this avoids flushing of global TLB entries for differing ASIDs.
Thiemo
Index: qemu-work/target-mips/op_helper.c
===================================================================
--- qemu-work.orig/target-mips/op_helper.c 2006-02-19 01:30:55.000000000
+0000
+++ qemu-work/target-mips/op_helper.c 2006-02-19 16:18:43.000000000 +0000
@@ -622,13 +622,14 @@
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;
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Qemu-devel] [PATCH] Don't flush global TLB entries,
Thiemo Seufer <=