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memory: manage coalesced mmio via a MemoryListener

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Instead of calling a global function on coalesced mmio changes, which
routes the call to kvm if enabled, add coalesced mmio hooks to
MemoryListener and make kvm use that instead.

The motivation is support for multiple address spaces (which means we
we need to filter the call on the right address space) but the result
is cleaner as well.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2012-10-02 18:21:54 +02:00
parent bf83601fdd
commit 95d2994a2f
6 changed files with 27 additions and 39 deletions
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17
memory.c
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@ -1136,11 +1136,19 @@ static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpa
FlatRange *fr;
CoalescedMemoryRange *cmr;
AddrRange tmp;
MemoryRegionSection section;
FOR_EACH_FLAT_RANGE(fr, as->current_map) {
if (fr->mr == mr) {
qemu_unregister_coalesced_mmio(int128_get64(fr->addr.start),
int128_get64(fr->addr.size));
section = (MemoryRegionSection) {
.address_space = as->root,
.offset_within_address_space = int128_get64(fr->addr.start),
.size = int128_get64(fr->addr.size),
};
MEMORY_LISTENER_CALL(coalesced_mmio_del, Reverse, &section,
int128_get64(fr->addr.start),
int128_get64(fr->addr.size));
QTAILQ_FOREACH(cmr, &mr->coalesced, link) {
tmp = addrrange_shift(cmr->addr,
int128_sub(fr->addr.start,
@ -1149,8 +1157,9 @@ static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpa
continue;
}
tmp = addrrange_intersection(tmp, fr->addr);
qemu_register_coalesced_mmio(int128_get64(tmp.start),
int128_get64(tmp.size));
MEMORY_LISTENER_CALL(coalesced_mmio_add, Forward, &section,
int128_get64(tmp.start),
int128_get64(tmp.size));
}
}
}