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

Yinghai Lu
2013-08-23T20:09:00Z

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?

Thanks

Yinghai