On Thu, Apr 2, 2015 at 12:13 PM, Ingo Molnar <mi...@kernel.org> wrote: > > * Andy Lutomirski <l...@amacapital.net> wrote: > >> On Thu, Apr 2, 2015 at 5:31 AM, tip-bot for Christoph Hellwig >> <tip...@zytor.com> wrote: >> > Commit-ID: ec776ef6bbe1734c29cd6bd05219cd93b2731bd4 >> > Gitweb: >> > http://git.kernel.org/tip/ec776ef6bbe1734c29cd6bd05219cd93b2731bd4 >> > Author: Christoph Hellwig <h...@lst.de> >> > AuthorDate: Wed, 1 Apr 2015 09:12:18 +0200 >> > Committer: Ingo Molnar <mi...@kernel.org> >> > CommitDate: Wed, 1 Apr 2015 17:02:43 +0200 >> > >> > x86/mm: Add support for the non-standard protected e820 type >> > >> > Various recent BIOSes support NVDIMMs or ADR using a >> > non-standard e820 memory type, and Intel supplied reference >> > Linux code using this type to various vendors. >> > >> > Wire this e820 table type up to export platform devices for the >> > pmem driver so that we can use it in Linux. >> >> This scares me a bit. Do we know that the upcoming ACPI 6.0 >> enumeration mechanism *won't* use e820 type 12? [...] > > So I know nothing about it, but I'd be surprised if e820 was touched > at all, as e820 isn't really well suited to enumerate more complex > resources, and it appears pmem wants to grow into complex directions?
I hope so, but I have no idea what the ACPI committee's schemes are. We could require pmem.enable_legacy_e820=Y to load the driver for now if we're concerned about it. --Andy > > Thanks, > > Ingo -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
