Enable MSI on selected hardware.  For now this means all Intel, AMD and NVIDIA chipsets.  All of those that support 64-bit CPUs should support MSI as well.
Enable MSI on selected hardware.  For now this means all Intel, AMD and NVIDIA
chipsets.  All of those that support 64-bit CPUs should support MSI as well.

Explicitly disable MSI on chipsets that connect to the CPU over HyperTransport.
Enabling MSI on those systems is handled by the HyperTransport support code
in our PCI subsystem.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars