| commit | 8ea45650455de769872647900964a406876db405 | |
| author | Alex Williamson <alex.williamson@hp.com> | |
| Tue, 19 May 2009 20:48:56 +0000 (19 14:48 -0600) | ||
| committer | Avi Kivity <avi@redhat.com> | |
| Wed, 20 May 2009 14:32:17 +0000 (20 17:32 +0300) | ||
| tree | 4cd687386d9d515aa5bc4617d26e2d54296323f8 | treesnapshot (tar.gz zip) |
| parent | a9cf44e07211adb97edffbe04061b8179a238f61 | commitdiff |
Use a bitmap for tracking used GSIs
We're currently using a counter to track the most recent GSI we've
handed out. This quickly hits KVM_MAX_IRQ_ROUTES when using device
assignment with a driver that regularly toggles the MSI enable bit
(such as Linux kernels 2.6.21-26). This can mean only a few minutes
of usable run time. Instead, track used GSIs in a bitmap.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
We're currently using a counter to track the most recent GSI we've
handed out. This quickly hits KVM_MAX_IRQ_ROUTES when using device
assignment with a driver that regularly toggles the MSI enable bit
(such as Linux kernels 2.6.21-26). This can mean only a few minutes
of usable run time. Instead, track used GSIs in a bitmap.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| kvm/libkvm/kvm-common.h | diffblobblamehistory | |
| kvm/libkvm/libkvm.c | diffblobblamehistory |