[Xen-users] Do we need ACPI/APIC/NUMA/Schedule in dom0 ?

To:	xen-users@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-users] Do we need ACPI/APIC/NUMA/Schedule in dom0 ?
From:	Chao-Rui Chang <ppc52776@xxxxxxxxx>
Date:	Fri, 30 Apr 2010 14:26:29 +0800
Delivery-date:	Thu, 29 Apr 2010 23:28:04 -0700
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Hello all,

My machine is a dual xeon x5520 server with NUMA support.

I have some question about xen dom0 kernel.
Since xen hypervisor has provided vcpu schedule,
do we need to compile the following feature in dom0 kernel?

Tickless System (Dynamic Ticks)
High Resolution Timer Support
AMD IOMMU support
SMT (Hyperthreading) scheduler support
Multi-core scheduler suppor
Numa Memory Allocation and Scheduler Support
ACPI (Advanced Configuration and Power Interface) Support

Because domU doesn't have ACPI support, the others are not functional in domU.
But do we still need the following two item in domU kernel?

SMT (Hyperthreading) scheduler support
Multi-core scheduler suppor

Thanks.

Best regards,
Chao-Rui

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[Xen-users] Do we need ACPI/APIC/NUMA/Schedule in dom0 ?