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| author | Fam Zheng | 2014-06-13 08:34:41 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2014-06-18 15:32:50 +0200 |
| commit | ab5b3db5d711b290d63e954dc64647dd51cef962 (patch) | |
| tree | b250b0591542b2dbdadbad252287e402b6956dd7 /fsdev | |
| parent | memory: MemoryRegion: rename parent to container (diff) | |
| download | qemu-ab5b3db5d711b290d63e954dc64647dd51cef962.tar.gz qemu-ab5b3db5d711b290d63e954dc64647dd51cef962.tar.xz qemu-ab5b3db5d711b290d63e954dc64647dd51cef962.zip | |
memory: Don't call memory_region_update_coalesced_range if nothing changed
With huge number of PCI devices in the system (for example, 200
virtio-blk-pci), this unconditional call can slow down emulation of
irrelevant PCI operations drastically, such as a BAR update on a device
that has no coalescing region. So avoid it.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'fsdev')
0 files changed, 0 insertions, 0 deletions