tree 9fbadb2c192cc22dca24dc6dfac6804dba5e70e8
parent 6edf14d8d0df144d6928799040f46fa37b5460ae
author Gleb Natapov <gleb@redhat.com> 1244707611 +0300
committer Avi Kivity <avi@redhat.com> 1252560777 +0300

KVM: Optimize searching for highest IRR

Most of the time IRR is empty, so instead of scanning the whole IRR on
each VM entry keep a variable that tells us if IRR is not empty. IRR
will have to be scanned twice on each IRQ delivery, but this is much
more rare than VM entry.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>