Re: [SeaBIOS] [Qemu-devel] [RFC PATCH v4 00/30] ACPI memory hotplug

[li guang]

在 2013-01-10四的 19:57 +0100，Vasilis Liaskovitis写道：
> > > IIRC q35 supports memory hotplug natively (picked up in some
> > > discussion).  Is that correct?
> >
> > From previous discussion I also understand that q35 supports native hotplug. 
> > Sections 5.1 and 5.2 of the spec describe the MCH registers but the native
> > memory hotplug specifics are not yet clear to me. Any pointers from the
> > spec are welcome.
>
> Ping. Could anyone who's familiar with the q35 spec provide some pointers on
> native memory hotplug details in the spec? I see pcie hotplug registers but can't
> find memory hotplug interface details. If I am not mistaken, the spec is here:
> http://www.intel.com/design/chipsets/datashts/316966.htm
>
> Is the q35 memory hotplug support supposed to be an shpc-like interface geared
> towards memory slots instead of pci slots?

seems there's no so-called q35-native support

[Qemu-devel] [RFC PATCH v4 00/30] ACPI memory hotplug

[Vasilis Liaskovitis]

Hi,

On Tue, Mar 19, 2013 at 02:30:25PM +0800, li guang wrote:
> 在 2013-01-10四的 19:57 +0100，Vasilis Liaskovitis写道：
> > > > IIRC q35 supports memory hotplug natively (picked up in some
> > > > discussion).  Is that correct?
> > >
> > > From previous discussion I also understand that q35 supports native hotplug. 
> > > Sections 5.1 and 5.2 of the spec describe the MCH registers but the native
> > > memory hotplug specifics are not yet clear to me. Any pointers from the
> > > spec are welcome.
> >
> > Ping. Could anyone who's familiar with the q35 spec provide some pointers on
> > native memory hotplug details in the spec? I see pcie hotplug registers but can't
> > find memory hotplug interface details. If I am not mistaken, the spec is here:
> > http://www.intel.com/design/chipsets/datashts/316966.htm
> >
> > Is the q35 memory hotplug support supposed to be an shpc-like interface geared
> > towards memory slots instead of pci slots?
>
> seems there's no so-called q35-native support

that was also my first impression when scanning the specification. Wasn't native
memory hotplug capabilities one of the reasons that q35 got picked as the next
pc chipset?

thanks,

- Vasilis