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memory: extract flat_range_coalesced_io_{del,add} 

Extract two new functions from memory_region_update_coalesced_range_as.
To avoid duplication in the creation of the MemoryRegionSection, use
MEMORY_LISTENER_UPDATE_REGION instead of MEMORY_LISTENER_CALL
to invoke the listener callback.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-11-28 10:42:06 +01:00
parent 4ec37f9048
commit 909bf76302
1 changed files with 29 additions and 24 deletions
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53
memory.c
View File

@ -850,6 +850,33 @@ static void address_space_update_ioeventfds(AddressSpace *as)
flatview_unref(view);
}
static void flat_range_coalesced_io_del(FlatRange *fr, AddressSpace *as)
{
MEMORY_LISTENER_UPDATE_REGION(fr, as, Reverse, coalesced_io_del,
int128_get64(fr->addr.start),
int128_get64(fr->addr.size));
}
static void flat_range_coalesced_io_add(FlatRange *fr, AddressSpace *as)
{
MemoryRegion *mr = fr->mr;
CoalescedMemoryRange *cmr;
AddrRange tmp;
QTAILQ_FOREACH(cmr, &mr->coalesced, link) {
tmp = addrrange_shift(cmr->addr,
int128_sub(fr->addr.start,
int128_make64(fr->offset_in_region)));
if (!addrrange_intersects(tmp, fr->addr)) {
continue;
}
tmp = addrrange_intersection(tmp, fr->addr);
MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, coalesced_io_add,
int128_get64(tmp.start),
int128_get64(tmp.size));
}
}
static void address_space_update_topology_pass(AddressSpace *as,
const FlatView *old_view,
const FlatView *new_view,
@ -2136,34 +2163,12 @@ static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpa
{
FlatView *view;
FlatRange *fr;
CoalescedMemoryRange *cmr;
AddrRange tmp;
MemoryRegionSection section;
view = address_space_get_flatview(as);
FOR_EACH_FLAT_RANGE(fr, view) {
if (fr->mr == mr) {
section = (MemoryRegionSection) {
.fv = view,
.offset_within_address_space = int128_get64(fr->addr.start),
.size = fr->addr.size,
};
MEMORY_LISTENER_CALL(as, coalesced_io_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,
int128_make64(fr->offset_in_region)));
if (!addrrange_intersects(tmp, fr->addr)) {
continue;
}
tmp = addrrange_intersection(tmp, fr->addr);
MEMORY_LISTENER_CALL(as, coalesced_io_add, Forward, &section,
int128_get64(tmp.start),
int128_get64(tmp.size));
}
flat_range_coalesced_io_del(fr, as);
flat_range_coalesced_io_add(fr, as);
}
}
flatview_unref(view);