PC Review

Thread Tools Rate Thread

Re: ACPI FIXVW2 4-20-2011 a regression?

Jonathan de Boyne Pollard
Posts: n/a
      24th Apr 2011
>> /APIC doesn't work at all without /SMP on same line. It is just
>> ignored without it.

> Are you sure of this statement? I thought that /APIC vs /PIC had to do
> with how interrupts are routed and that /APIC only makes sense on
> mother boards that support the more up-to-date interrupt handling.

At its root, it's a design choice that one has to make about what are
the default and non-default configurations for an operating system. If
you look at this from a wider perspective than merely OS/2 platform
drivers, you'll find that although the various combinations are *in
theory* orthogonal, in practice the choice of one generally dictates the
choice of another. In Windows NT, for example, not all of the possible
combinations of ACPI, local APICs, and SMP exist as HALs (e.g.
HALMPS.DLL). It's essentially a design decision what combinations to
support, with what defaults, and when to say "If you don't have X then
you're just going to have to do without Y as well.". What Allan is
saying is that the design choice made here is that if you, the system
administrator, choose the ACPI platform driver, then you get APIC and
SMP as a job lot: either you have both or you get neither.

Reply With Quote

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Change from ACPI Uniprocessor to ACPI Multiprocessor Jw Windows XP Hardware 1 9th Oct 2004 04:13 PM
Change from ACPI Uniprocessor to ACPI Multiprocessor Jw Windows XP Configuration 0 9th Oct 2004 03:57 PM
about the proplem "ACPI AMLI: ACPI BIOS" li wei Windows XP Networking 0 13th Mar 2004 11:41 AM
ACPI S1 Stress test and ACPI S3 Stress test FAILS Pavel Windows XP Logo 2 13th Jan 2004 08:42 AM
Changing from ACPI Multiprocessor PC to ACPI Uniprocessor PC Rattana Windows XP Hardware 2 11th Jul 2003 02:49 PM




All times are GMT +1. The time now is 09:21 PM.