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

[Matthew Wilcox]

I'd rather the memmap= option works on all platforms.  Unless we're going to get rid of it entirely and exclusively use ACPI tables, I see no good reason to leave this landmine lying around for someone else to blow their own leg off.

-----Original Message-----
From: Dan Williams [mailto:dan.j.williams@xxxxxxxxx] 
Sent: Thursday, August 18, 2016 2:03 PM
To: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Cc: Matthew Wilcox <mawilcox@xxxxxxxxxxxxxxxxx>; X86 ML <x86@xxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux-nvdimm@xxxxxxxxxxxx
Subject: Re: [PATCH 1/2] x86: Set up resources correctly on Hyper-V Generation 2

On Thu, Aug 18, 2016 at 10:50 AM, Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> wrote:
> This is the memmap= kernel command line option.

The Hyper-V ACPI tables are growing NFIT support, or I believe that work is already underway.  I'd rather not touch the Linux PCI core to cover for the fact that Hyper-V disables one of the kernel's debug command line options when there's a platform standard way to communicate these resources.