Re: [PATCH 2/2] Xen ACPI memory hotplug

Erlon Cruz
Wed, 06 Mar 2013 00:25:37 -0000

[snip]
>+config XEN_ACPI_HOTPLUG_MEMORY
>+	tristate "Xen ACPI memory hotplug"
>+	depends on XEN_DOM0 && XEN_STUB && ACPI
>+	default n
>+	help
>+	  This is Xen ACPI memory hotplug.
>+
>+	  Currently Xen only support ACPI memory hot-add. If you want
>+	  to hot-add memory at runtime (the hot-added memory cannot be
>+	  removed until machine stop), select Y/M here, otherwise select N.

I''m wondering if the memory removal is not implemented because of the
same complication QEMU developers are having. To find a way to keep
track of the references to to memory to be removed (e.g in DMA block
operations). Did you had this issue?

Kind Regards,
Erlon