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so both passthru and graphics device have SBIOS requirement to limit MMIO addresses to 42-bits.
I get the answer from VMware support today.
the pci card is TI dsp.
below is log:
2013-02-17T12:20:07.184Z| vmx| I120: PCIPassthru: 0b:00.0 : Device BAR 2 requested 64-bit memory address that exceeded MPN type (66038343401472).
2013-02-17T12:20:07.184Z| vmx| I120: PCIPassthru: 0b:00.0 : Device BAR 4 requested 64-bit memory address that exceeded MPN type (66037269659648).
2013-02-17T12:20:07.184Z| vmx| I120: Module DevicePowerOn power on failed.
In fact ,I change another 32 bit pci card to limit the bios pci address below 42.but the esxi crashed with purple screen.
I want to know whether there is a lot of limit about the pcie passthrough ?
first ,ACS for switch
second,bios enable vt-d,vt
other requirements such as 6 pcie at most,..........?