linux-kernel - Re: [PATCH 1/2] x86: Set up resources correctly on Hyper-V Generation 2

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Date:   Thu, 18 Aug 2016 12:12:10 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Matthew Wilcox <mawilcox@...rosoft.com>
Cc:     X86 ML <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>
Subject: Re: [PATCH 1/2] x86: Set up resources correctly on Hyper-V Generation 2

On Thu, Aug 18, 2016 at 11:26 AM, Matthew Wilcox <mawilcox@...rosoft.com> wrote:
> *Until* such a mechanism is in, I see no reason to not keep feature parity for all platforms.  This is the exact "You should boil the ocean" response that Arjan famously complained about at Kernel Summit a few years ago.

Feature parity for all platforms is the NFIT which Hyper-V is already
implementing.

Setting that aside, if we want to fix memmap= for the general case,
implementing a table like mBFT does not amount to ocean boiling in my
opinion.