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tlb flush cleanup 

Use static empty variable s_cputlb_empty_entry to clear entries,
also reset addend member when clearing entries.
This helps running with valgrind/memcheck

Signed-off-by: igor.v.kovalenko@gmail.com

--
Kind regards,
Igor V. Kovalenko
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Igor Kovalenko 2009-07-12 02:15:40 +04:00 committed by Anthony Liguori
parent 7d93b1fa18
commit 0873898472
1 changed files with 9 additions and 6 deletions
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15
exec.c
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@ -1751,6 +1751,13 @@ static inline void tlb_flush_jmp_cache(CPUState *env, target_ulong addr)
TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
}
static CPUTLBEntry s_cputlb_empty_entry = {
.addr_read = -1,
.addr_write = -1,
.addr_code = -1,
.addend = -1,
};
/* NOTE: if flush_global is true, also flush global entries (not
implemented yet) */
void tlb_flush(CPUState *env, int flush_global)
@ -1767,9 +1774,7 @@ void tlb_flush(CPUState *env, int flush_global)
for(i = 0; i < CPU_TLB_SIZE; i++) {
int mmu_idx;
for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) {
env->tlb_table[mmu_idx][i].addr_read = -1;
env->tlb_table[mmu_idx][i].addr_write = -1;
env->tlb_table[mmu_idx][i].addr_code = -1;
env->tlb_table[mmu_idx][i] = s_cputlb_empty_entry;
}
}
@ -1791,9 +1796,7 @@ static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr)
(TARGET_PAGE_MASK | TLB_INVALID_MASK)) ||
addr == (tlb_entry->addr_code &
(TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
tlb_entry->addr_read = -1;
tlb_entry->addr_write = -1;
tlb_entry->addr_code = -1;
*tlb_entry = s_cputlb_empty_entry;
}
}