[Buildroot] [PATCH 4/4] board/qemu/aarch64-virt/linux.config: enable memory hotplug

Thomas Petazzoni thomas.petazzoni at bootlin.com
Sun Jul 12 19:27:04 UTC 2020


On Sun, 12 Jul 2020 18:34:22 +0200
Romain Naour <romain.naour at gmail.com> wrote:

> To test memory hotplug [1], add -m 1G,slots=3,maxmem=4G to the qemu command
> line, boot the system and enter the following command in the Qemu monitor
> to add another 1GB to the guest:
> (use ctrl+a c to switch from the serial port and Qemu monitor):
> 
>    (qemu) object_add memory-backend-ram,id=mem1,size=1G
>    (qemu) device_add pc-dimm,id=dimm1,memdev=mem1
> 
> [1] https://git.qemu.org/?p=qemu.git;a=blob;f=docs/memory-hotplug.txt;h=6aa5e17e26090f619787de7b71888093fb9d0117;hb=fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6#l9
> 
> Signed-off-by: Romain Naour <romain.naour at gmail.com>

Is this really something we want to enable in a defconfig ? It feels
like a very advanced/specific feature, not really relevant for a
demo/test defconfig IMO.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com


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