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| From: | Igor Mammedov |
| Subject: | Re: [Qemu-devel] [RFC 0/7+1] QEMU APIC ID + topology bug + CPU hotplug |
| Date: | Thu, 12 Jul 2012 15:51:48 +0200 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 |
On 07/10/2012 10:22 PM, Eduardo Habkost wrote:
The hotplug case is a bit more complex: we need to either:
- have a mechanism to let the ACPI SSDT code know what's the APIC ID of
hotplugged CPUs; or
- make Seabios run some code in the hotplugged CPU (I am assuming that this is
simply not possible).
If SMM is supported by qemu/kvm than it will be possible to trigger SMI from APCI method and SMI handler, that are supposed to run on all CPUs (including hot-plugged one) , could fixup APIC ID of added CPU in some memory region used by ACPI. -- ----- Igor
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