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    DirectPath I/O support for Haswell Lynx Point SATA AHCI controller

    Digian Novice

      Hi,

       

      Im building a new ESXi 5.5 system on Asus H87i-itx board with Intel i5 Haswell 4670T chip. Mainboard and CPU both support VT-d / DirectPath I/O so far as I can tell, but I have a problem.

       

      In ESXi I can see most devices available for DirectPath I/O passthrough such as Video, Audio, NIC and USB controller, everything is available for DirectPath I/O passthrough except for Lynx Point SATA AHCI controller.

       

      Can anybody help diagnose why the SATA controller is missing, and steps for more detailed debugging ?

       

      Previous Cougar Point AHCI SATA controller is supported in ESXi so why not Lynx Point.

       

      Also, Lynx Point SATA AHCI controller is listed on VMware HCL page here:

       

      VMware Compatibility Guide: I/O Device Search   Intel "Lynx Point" Series Chipset 6-Port SATA AHCI  8086:8c02

       

      Strange thing is my ESXi can see the Lynx Point SATA AHCI controller in Storage Adaptors correctly, showing 6 x VMHBA listed, so why does it not appear in passthrough, and not even greyed out ?

       

      DirectPath.png

      DirectPath2.png

      DirectPath3.png

      DirectPath4.png

       

      Is there any extra diagnostic I can do please tell me ?

       

      Would like to avoid doing physical raw mapping (rdm) if possible, DirectPath I/O Passthrough would be much nicer method. :-)

      RDM mapping of local SATA storage for ESXi

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