Adam Jackson <a...@redhat.com> writes:
> From: Stephen Hemminger <step...@networkplumber.org>
>
> The PCI domain may be larger than 16 bits on Microsoft Azure and other
> virtual environments. PCI busses reported by ACPI are limited to 16
> bits, but in Azure the domain value for pass through devices is
> intentionally larger than 16 bits to avoid clashing with local devices.
> This is needed to support pass through of GPU devices.
>
> v2: (ajax)
> Rename fields as domain_{16,32} to force consumers to adapt when built
> against the new library. Update FreeBSD and Solaris backends to preserve
> the full 32-bit domain number, since on those OSes it stands a chance of
> working already. Update NetBSD and OpenBSD backends to initialize
> domain_16 compatibly with older libpciaccess; neither backend appears to
> support more than a handful of domains to begin with though. Trivially
> update the generic x86 backend for source compatibility, though it still
> only supports one domain and will never be better.I like extending of the struct and keeping the old field around, but breaking source compatibility seems like unnecessary pain to me. Could we keep the first field "domain_16" and name the new one "domain"?
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