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authorMichael S. Tsirkin <mst@redhat.com>2009-11-25 12:24:14 +0200
committerMichael S. Tsirkin <mst@redhat.com>2009-12-01 18:00:14 +0200
commit98304c846d8866dae6322ef400ce6595b23cfc41 (patch)
tree7526a2fb68d30d9f82143c35eab444770f835083 /check-qlist.c
parent1f944c661a821774e7b8cfbf5560a238795f2a60 (diff)
msix: clear pending bit of an unused vector
PCI spec states: if a masked vector has its Pending bit set, and the associated underlying interrupt events are somehow satisfied (usually by software though the exact manner is function-specific), the function must clear the Pending bit, to avoid sending a spurious interrupt message later when software unmasks the vector. In our case this happens if vector becomes unused. Clear pending bit in this case. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'check-qlist.c')
0 files changed, 0 insertions, 0 deletions