Re: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier.

Russ Anderson
2013-08-24T02:41:09Z

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@zytor.com> wrote:
> >
> > BRK makes sense as long as you can set a sane O(1) size limit.
> >
> >>
> >>put the acpi override table in BRK, we still need ok from HPA.
> >>I have impression that he did not like it, so want to confirm from him.
>
> on 8 sockets system:
> -rw-r--r-- 1 root root 3532 Aug 22 10:26 APIC.dat
> -rw-r--r-- 1 root root 48 Aug 22 10:26 BDAT.dat
> -rw-r--r-- 1 root root 824 Aug 22 10:26 DMAR.dat
> -rw-r--r-- 1 root root 83509 Aug 22 10:26 DSDT.dat
> -rw-r--r-- 1 root root 244 Aug 22 10:26 FACP.dat
> -rw-r--r-- 1 root root 64 Aug 22 10:26 FACS.dat
> -rw-r--r-- 1 root root 68 Aug 22 10:26 FPDT.dat
> -rw-r--r-- 1 root root 56 Aug 22 10:26 HPET.dat
> -rw-r--r-- 1 root root 304 Aug 22 10:26 MCEJ.dat
> -rw-r--r-- 1 root root 60 Aug 22 10:26 MCFG.dat
> -rw-r--r-- 1 root root 6712 Aug 22 10:26 MPST.dat
> -rw-r--r-- 1 root root 232 Aug 22 10:26 MSCT.dat
> -rw-r--r-- 1 root root 172 Aug 22 10:26 PCCT.dat
> -rw-r--r-- 1 root root 96 Aug 22 10:26 PMCT.dat
> -rw-r--r-- 1 root root 48 Aug 22 10:26 RASF.dat
> -rw-r--r-- 1 root root 108 Aug 22 10:26 SLIT.dat
> -rw-r--r-- 1 root root 80 Aug 22 10:26 SPCR.dat
> -rw-r--r-- 1 root root 65 Aug 22 10:26 SPMI.dat
> -rw-r--r-- 1 root root 6448 Aug 22 10:26 SRAT.dat
> -rw-r--r-- 1 root root 100 Aug 22 10:26 SSDT1.dat
> -rw-r--r-- 1 root root 283527 Aug 22 10:26 SSDT2.dat
> -rw-r--r-- 1 root root 66 Aug 22 10:26 UEFI.dat
> -rw-r--r-- 1 root root 64 Aug 22 10:26 WDDT.dat
>
> assume for 32sockets will have four times bigger with DSDT and SSDT.
> (with more pci and cpus)
>
> So we can not have O(1) the size.
>
> Russ, What is ACPI table size on your big machine?

This is from a 255 socket, 4080 cpu, 15TB system.

-------------------------------------------------------
-rw-r--r-- 1 root root 65392 Aug 23 21:23 apic.dat
-rw-r--r-- 1 root root 316 Aug 23 21:23 dmar.dat
-rw-r--r-- 1 root root 8309249 Aug 23 21:23 dsdt.dat
-rw-r--r-- 1 root root 244 Aug 23 21:23 facp.dat
-rw-r--r-- 1 root root 64 Aug 23 21:23 facs.dat
-rw-r--r-- 1 root root 56 Aug 23 21:23 hpet.dat
-rw-r--r-- 1 root root 4172 Aug 23 21:23 mcfg.dat
-rw-r--r-- 1 root root 36 Aug 23 21:23 rsdp.dat
-rw-r--r-- 1 root root 80 Aug 23 21:23 rsdt.dat
-rw-r--r-- 1 root root 65069 Aug 23 21:23 slit.dat
-rw-r--r-- 1 root root 80 Aug 23 21:23 spcr.dat
-rw-r--r-- 1 root root 108168 Aug 23 21:23 srat.dat
-rw-r--r-- 1 root root 21330 Aug 23 21:23 ssdt.dat
-rw-r--r-- 1 root root 92 Aug 23 21:23 uefi1.dat
-rw-r--r-- 1 root root 298 Aug 23 21:23 uefi.dat
-rw-r--r-- 1 root root 124 Aug 23 21:23 xsdt.dat
-------------------------------------------------------

--
Russ Anderson, OS RAS/Partitioning Project Lead
SGI - Silicon Graphics Inc rja@sgi.com