| commit | e5368f0da75c1c668e85398aa930be2f4273e684 | |
| author | Alex Williamson <alex.williamson@redhat.com> | |
| Thu, 7 Mar 2013 18:29:19 +0000 (7 11:29 -0700) | ||
| committer | Michael S. Tsirkin <mst@redhat.com> | |
| Tue, 26 Mar 2013 19:02:17 +0000 (26 21:02 +0200) | ||
| tree | da955bc5d5c8b71c26268d6ada75dca01846aa03 | treesnapshot (tar.gz zip) |
| parent | 600d05b9aa4b4d23775fc17968dd6b581928001d | commitdiff |
pci: Fix INTx routing notifier recursion
For some reason we recurse to fire the INTx routing notifier for each
child of a bus, for each possible device of a bus. That means that if
we add a root port, the notifier gets called for that bridge 256
times. If we add an upstream switch behind that root port, 256^2. But
of course we need a downstream switch, 256^3. This starts to be
noticeable. Stop the insanity.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
For some reason we recurse to fire the INTx routing notifier for each
child of a bus, for each possible device of a bus. That means that if
we add a root port, the notifier gets called for that bridge 256
times. If we add an upstream switch behind that root port, 256^2. But
of course we need a downstream switch, 256^3. This starts to be
noticeable. Stop the insanity.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| hw/pci/pci.c | diffblobblamehistory |