linux-kernel - RE: [PATCH 0/8] x86, acpi: Move acpi_initrd

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Date:	Fri, 23 Aug 2013 21:52:33 +0000
From:	"Moore, Robert" <robert.moore@...el.com>
To:	chen tang <imtangchen@...il.com>, Yinghai Lu <yinghai@...nel.org>
CC:	Russ Anderson <rja@....com>, "H. Peter Anvin" <hpa@...or.com>,
	"Zhang Yanfei" <zhangyanfei.yes@...il.com>,
	Toshi Kani <toshi.kani@...com>, "Tejun Heo" <tj@...nel.org>,
	Tang Chen <tangchen@...fujitsu.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>,
	"Zheng, Lv" <lv.zheng@...el.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Renninger <trenn@...e.de>,
	"Yasuaki Ishimatsu" <isimatu.yasuaki@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier.

While we're at it:

Can someone send me the acpidump for this machine? We very much would like to test all of ACPICA with such a large DSDT.

Thanks,
Bob


> -----Original Message-----
> From: chen tang [mailto:imtangchen@...il.com]
> Sent: Friday, August 23, 2013 2:51 PM
> To: Yinghai Lu
> Cc: Russ Anderson; H. Peter Anvin; Zhang Yanfei; Toshi Kani; Tejun Heo;
> Tang Chen; Konrad Rzeszutek Wilk; Moore, Robert; Zheng, Lv; Rafael J.
> Wysocki; Ingo Molnar; Andrew Morton; Thomas Renninger; Yasuaki Ishimatsu;
> Mel Gorman; Linux Kernel Mailing List
> Subject: Re: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier.
> 
> Hi Yinghai,
> 
> 2013/8/24 Yinghai Lu <yinghai@...nel.org>:
> > On Fri, Aug 23, 2013 at 1:30 PM, Russ Anderson <rja@....com> wrote:
> >> On Fri, Aug 23, 2013 at 01:08:56PM -0700, Yinghai Lu wrote:
> >>> On Fri, Aug 23, 2013 at 11:25 AM, H. Peter Anvin <hpa@...or.com>
> wrote:
> >
> >>> Russ, What is ACPI table size on your big machine?
> >>
> >> This is from a 256 socket 32TB system.
> >>
> >>  Reserving 256MB of memory at 66973408MB for crashkernel (System RAM:
> 32501719MB)
> >>  ACPI: RSDP 000000007ef3d014 00024 (v02 INTEL )
> >>  ACPI: XSDT 000000007ef3d120 0007C (v01 INTEL  TIANO    00000000
> 01000013)
> >>  ACPI: FACP 000000007ef3a000 000F4 (v04 INTEL  TIANO    00000000 MSFT
> 01000013)
> >>  ACPI: DSDT 000000007e6c3000 7F493E (v02   SGI2      UVX 00000002 MSFT
> 01000013)
> >>  ACPI: FACS 000000007d147000 00040
> >>  ACPI: UEFI 000000007ef3c000 0012A (v01  INTEL  RstScuO 00000000
> 00000000)
> >>  ACPI: UEFI 000000007ef3b000 0005C (v01  INTEL  RstScuV 00000000
> 00000000)
> >>  ACPI: HPET 000000007ef39000 00038 (v01 INTEL  TIANO    00000001 MSFT
> 01000013)
> >>  ACPI: SSDT 000000007ef33000 05352 (v02  INTEL ROSECITY 00000003 INTL
> 20070508)
> >>  ACPI: SLIT 000000007ef10000 1002C (v01   SGI2      UVX 00000002 MSFT
> 00000001)
> >>  ACPI: APIC 000000007eeee000 10070 (v03   SGI2      UVX 00000002 MSFT
> 00000001)
> >>  ACPI: SRAT 000000007eeb8000 1A830 (v03   SGI2      UVX 00000002 MSFT
> 00000001)
> >>  ACPI: MCFG 000000007d6d4000 0105C (v01   SGI2      UVX 00000002 MSFT
> 00000001)
> >>  ACPI: SPCR 000000007e6c2000 00050 (v01                 00000000
> 00000000)
> >>  ACPI: DMAR 000000007d6d3000 0013C (v01 INTEL  TIANO    00000001 MSFT
> 01000013)
> >>
> >
> > so the DSDT is 7F493E, and total is more than 8M.
> >
> > that will need BRK to be extended 16M?
> >
> 
> Then how about use early_ioremap(), and don't do it that early in
> head_32 and head64 ?
> 
> Thanks.
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