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IOMMU assinging single IRQ vector for Multiple MSI capable PCIE Device

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2015-10-23T12:42:59.960Z cpu1:79595)IOMMU: 2053: Device 0000:02:00.0 placed in new domain 0x4301b835cc40.

2015-10-23T12:43:18.018Z cpu4:79604)VMKPCIPassthru: 1850: SBDF=0000:02:00.0 intrType = 2 numIntrs: 1

2015-10-23T12:43:18.018Z cpu4:79604)IntrCookie: 3545: cookie 0x15 vector 0x31

2015-10-23T12:43:18.018Z cpu4:79604)IntrCookie: 1903: cookie 0x15 moduleID 0 <pcip_0000:02:00.0> exclusive, flags 0x1

 

 

Device advertising 32 MSI is only getting assigned a single IRQ. Device driver in Windows is requesting 8 but only gets 1.

 

When does the interrupt assignment happen? During Windows load or is esxi assigning a single MSI for device?


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