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Re: [Qemu-devel] [PATCH 00/35] pc: ACPI memory hotplug
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [PATCH 00/35] pc: ACPI memory hotplug |
Date: |
Fri, 4 Apr 2014 16:24:31 +0200 |
On Fri, 04 Apr 2014 16:07:53 +0200
Paolo Bonzini <address@hidden> wrote:
> Il 04/04/2014 15:36, Igor Mammedov ha scritto:
> >
> > * dropped support for 32 bit guests
>
> Can you explain this more?
v7 had ability to map hotplugged DIMMs below 4Gb, but Gerd suggested to drop
it since it consume precious lowmem for PCI devices. This version maps
DIMM devices beyond above4gb memory. So "dropped support for 32 bit guests"
here means that if it can't handle GPA above 4Gb and 64bit _CRS, it won't have
working memory cold/hot-plug DIMM devices.
>
> > PS:
> > Windows guest requires SRAT table for hotplug to work so add an extra
> > option:
> > -numa node
> > to QEMU command line.
>
> Should we consider always exposing a SRAT for 2.1+ machine types?
That certainly would help management not have to worry about it.
>
> Paolo
--
Regards,
Igor
- Re: [Qemu-devel] [PATCH 27/35] pc: migrate piix4 & ich9 MemHotplugState, (continued)
- [Qemu-devel] [PATCH 26/35] acpi:ich9: add memory hotplug handling, Igor Mammedov, 2014/04/04
- [Qemu-devel] [PATCH 32/35] pc: ACPI BIOS: use enum for defining memory affinity flags, Igor Mammedov, 2014/04/04
- [Qemu-devel] [PATCH 29/35] pc: ACPI BIOS: punch holes in PCI0._CRS for memory hotplug IO region, Igor Mammedov, 2014/04/04
- [Qemu-devel] [PATCH 33/35] pc: ACPI BIOS: reserve SRAT entry for hotplug mem hole, Igor Mammedov, 2014/04/04
- [Qemu-devel] [PATCH 34/35] pc: ACPI BIOS: make GPE.3 handle memory hotplug event on PIIX and Q35 machines, Igor Mammedov, 2014/04/04
- [Qemu-devel] [PATCH 31/35] pc: ACPI BIOS: implement memory hotplug interface, Igor Mammedov, 2014/04/04
- Message not available
- Re: [Qemu-devel] [PATCH 00/35] pc: ACPI memory hotplug,
Igor Mammedov <=
- [Qemu-devel] [PATCH 30/35] pc: ACPI BIOS: name CPU hotplug ACPI0004 device, Igor Mammedov, 2014/04/04
- [Qemu-devel] [PATCH 28/35] pc: propagate memory hotplug event to ACPI device, Igor Mammedov, 2014/04/04