Freebsd 6.0 doesnt detect local APIC on a Pentium 3 machine
Vaibhave Agarwal
vaibhave at cs.utah.edu
Sun Nov 6 14:40:00 PST 2005
On Sun, 6 Nov 2005, John Baldwin wrote:
> We don't detect the local APIC via MSR's or the APIC bit in cpu_features, but
> rely on a working MP Table or MADT table to setup both the local APIC(s) and
> I/O APIC(s). Does your machine have a valid MP Table or an APIC table in its
> acpidump? Many UP machine BIOSes don't include those tables.
>
I think you are right.
There is no valid APIC table in the acpidump.
The only place where APIC is mentioned in the acpidump(8) is in following:
Scope (\_SB)
{
Name (APIC, 0x00)
Method (_PIC, 1, NotSerialized)
{
Store (Arg0, APIC)
}
}
And I suppose APIC is disabled in the BIOS too.
Is there a way to enable APIC using software, without changing the BIOS,
since I dont have access to the BIOS, as it is a remote machine (with
root access) ?
Thanks
vaibhave
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