Re: [PATCH v3 00/22] x86, ACPI, numa: Parse numa info early

[Thomas Renninger]

On Thursday, April 04, 2013 08:09:46 PM Yinghai Lu wrote:
...
> can you try
> 
> git checkout -b for-x86-mm origin/for-x86-mm

That worked out much better :)

I see these changes in e820 table, the first part is probably unrelated:

BIOS-e820: [mem 0x0000000000000000-0x000000000009bbff] usable
...
BIOS-e820: [mem 0x0000000000100000-0x00000000ba294fff] usable

modified: [mem 0x0000000000000000-0x0000000000000fff] reserved
modified: [mem 0x0000000000001000-0x000000000009bbff] usable
modified: [mem 0x0000000000100000-0x00000000ba27bfff] usable
...
modified: [mem 0x00000000ba27c000-0x00000000ba2947fc] ACPI data
modified: [mem 0x00000000ba2947fd-0x00000000ba294fff] usable

And the ACPI data section where the modified tables are placed
seem to get correctly inserted at:
0x00000000ba27c000-0x00000000ba2947fc

-> 0x187FC == 100,348 bytes
DSDT and FACP (better known as FADT) I passed have a size
of (see dmesg parts below):
0x18709 + 0xF4 bytes = 100,349 bytes.

Ah wait the 0xba2947fc is inclusive, so it should exactly fit.

I then see:
DSDT ACPI table found in initrd [0x378f5208-0x3790d910]
FACP ACPI table found in initrd [0x3790d9a0-0x3790da93]
ACPI: RSDP 00000000000f0410 00024 (v02  INTEL)
ACPI: XSDT 00000000bdf24d98 0008C (v01  INTEL   ROMLEY 06222004 INTL 20090903)
ACPI: Override [FACP-  ROMLEY], this is unsafe: tainting kernel
Disabling lock debugging due to kernel taint
ACPI: FACP 00000000bdf24a98 Physical table override, new table: ffffffffff4af709
ACPI: FACP 00000000ba294709 000F4 (v04  INTEL   ROMLEY 06222004 INTL 20121220)
ACPI BIOS Bug: Warning: Invalid length for FADT/Pm1aControlBlock: 32, using default 16 (20130117/tbfadt-649)
ACPI: Override [DSDT-  ROMLEY], this is unsafe: tainting kernel
ACPI: DSDT 00000000bdf09018 Physical table override, new table: ffffffffff4af000
ACPI: DSDT 00000000ba27c000 18709 (v02  INTEL   ROMLEY 00000021 INTL 20121220)

Later I see my debug string added to the DSDT when the
PCI Routing Table (_PRT) is processed:
[    9.505419] [ACPI Debug]  String [0x0A] "XXXXXXXXXX"

And taking the FADT from /sys/firmware/acpi/tables/FACP:
my:
PM Profile : 04 [Enterprise Server]
changed (as expected) to:
PM Profile : 02 [Mobile]

>From acpi overriding parts:
Tested-by: Thomas Renninger <trenn@xxxxxxx>

I also went through the override related patches and from
what I can judge (certainly not the early memory, flat 32 bit memory you call it?
specific parts), they look fine.

Nice work!

      Thomas
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