On 06/04/18 16:10, Boris Ostrovsky wrote: > On 04/06/2018 09:33 AM, George Dunlap wrote: >> On Fri, Apr 6, 2018 at 2:12 PM, Juergen Gross <jgr...@suse.com> wrote: >>> >>> So its time for a new XENFEAT_ value then? This would be the least >>> intrusive way to add such a flag. Something like >>> XENFEAT_linux_high_rsdp_address_okay ? >> That sounds reasonable to me. I'd personally make it something like >> "reads_rsdp_from_start_info" or something, but the name doesn't matter >> to me as much. :-) >> >> The other option would be to introduce a "max_pvh_interface_supported" >> or something. If it's not present (and it's a Linux kernel), default >> it to '0', and have that mean "RSDP must be under 1MiB". >> >> That will allow us elbow-room in the future if we want to make other >> breaking changes like this, without needing to keep a separate flag >> around for each one indefinitely. > > I slightly more prefer a per-feature bit. It is indeed somewhat more > maintenance-heavy but is also more flexible.
+1 Juergen _______________________________________________ Xen-devel mailing list Xenfirstname.lastname@example.org https://lists.xenproject.org/mailman/listinfo/xen-devel