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pam: wrap MemoryRegion initialization in a transaction

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This avoids a few re-rendering of the memory AddressSpace.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-11-28 17:22:25 +01:00
parent 1db4269f34
commit 4ec37f9048
1 changed files with 2 additions and 0 deletions
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2
hw/pci-host/pam.c
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@ -52,11 +52,13 @@ void init_pam(DeviceState *dev, MemoryRegion *ram_memory,
memory_region_init_alias(&mem->alias[2], OBJECT(dev), "pam-pci", ram_memory, memory_region_init_alias(&mem->alias[2], OBJECT(dev), "pam-pci", ram_memory,
start, size); start, size);
memory_region_transaction_begin();
for (i = 0; i < 4; ++i) { for (i = 0; i < 4; ++i) {
memory_region_set_enabled(&mem->alias[i], false); memory_region_set_enabled(&mem->alias[i], false);
memory_region_add_subregion_overlap(system_memory, start, memory_region_add_subregion_overlap(system_memory, start,
&mem->alias[i], 1); &mem->alias[i], 1);
} }
memory_region_transaction_commit();
mem->current = 0; mem->current = 0;
} }