Comment 12 for bug 1426216
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| bugproxy (bugproxy) wrote Comment bridged from LTC Bugzilla | #12 |
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------- Comment From <email address hidden> 2015-06-16 21:21 EDT-------
The PHB3 PCIe host bridge in Power8 does not support generating IO space transactions / cycles, so no IO window is assigned to the PCI bus and all IO space resources will be unassigned and must remain disabled in the pci command register. (Previous bridges in most PowerPC systems provided a memory mapped window that generates IO cycles but that function was not implemented in Power8.)