[SeaBIOS] Alt SeaBIOS SSDT cpu hotplug

Kevin O'Connor kevin at koconnor.net
Thu Jul 8 01:26:07 CEST 2010

On Wed, Jul 07, 2010 at 01:22:49PM +0300, Gleb Natapov wrote:
> On Wed, Jul 07, 2010 at 12:57:05AM -0400, Kevin O'Connor wrote:
> > The "CPUS" package stores references to the Processor objects, and the
> > "CPON" package stores the state of which cpus are active.  With this
> > info, hopefully there is no need to update the MADT tables.
> > 
> The way you wrote it acpi_id is always equal to lapic_id which is not
> alway true. By using MADT from memory we remove this dependency from
> DSDT code.

The current code always sets the apic->processor_id equal to
apic->local_apic_id in the madt apic table.  If this changes, we could
add a dynamically created mapping table to the ssdt.  Something like:

Name(CPLA, Package() { 0x00, 0x01, 0x02, 0x03, 0x04 })


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