Sheng Yang 968a634793 KVM: No disable_irq for MSI/MSI-X interrupt on device assignment ... Disable interrupt at interrupt handler and enable it when guest ack is for the level triggered interrupt, to prevent reinjected interrupt. MSI/MSI-X don't need it. One possible problem is multiply same vector interrupt injected between irq handler and scheduled work handler would be merged as one for MSI/MSI-X. But AFAIK, the drivers handle it well. The patch fixed the oplin card performance issue(MSI-X performance is half of MSI/INTx). Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2009-09-10 08:32:43 +03:00
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kvm	KVM: No disable_irq for MSI/MSI-X interrupt on device assignment	2009-09-10 08:32:43 +03:00