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memory: move tlb flush to MemoryListener commit callback 

This way, if we have several changes in a single transaction, we flush just
once.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2012-02-12 21:23:17 +02:00
parent 717cb7b259
commit 117712c3e4
1 changed files with 8 additions and 8 deletions
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16
exec.c
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@ -2625,7 +2625,6 @@ void cpu_register_physical_memory_log(MemoryRegionSection *section,
target_phys_addr_t start_addr = section->offset_within_address_space;
ram_addr_t size = section->size;
target_phys_addr_t addr, end_addr;
CPUState *env;
ram_addr_t orig_size = size;
subpage_t *subpage;
uint16_t section_index = phys_section_add(section);
@ -2659,13 +2658,6 @@ void cpu_register_physical_memory_log(MemoryRegionSection *section,
}
addr += TARGET_PAGE_SIZE;
} while (addr != end_addr);
/* since each CPU stores ram addresses in its TLB cache, we must
reset the modified entries */
/* XXX: slow ! */
for(env = first_cpu; env != NULL; env = env->next_cpu) {
tlb_flush(env, 1);
}
}
void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
@ -3563,6 +3555,14 @@ static void core_begin(MemoryListener *listener)
static void core_commit(MemoryListener *listener)
{
CPUState *env;
/* since each CPU stores ram addresses in its TLB cache, we must
reset the modified entries */
/* XXX: slow ! */
for(env = first_cpu; env != NULL; env = env->next_cpu) {
tlb_flush(env, 1);
}
}
static void core_region_add(MemoryListener *listener,