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[Xen-devel] [PATCH 1/2] xen: expand BALLOON_MEMORY_HOTPLUG description

To mention it's also useful for PVH or HVM domains that require
mapping foreign memory or grants.

Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Cc: Juergen Gross <jgross@xxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
 drivers/xen/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 61212fc7f0c7..57ddd6f4b729 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -19,6 +19,10 @@ config XEN_BALLOON_MEMORY_HOTPLUG
          It is very useful on critical systems which require long
          run without rebooting.
+         It's also very useful for translated domains (PVH or HVM) to obtain
+         unpopulated physical memory ranges to use in order to map foreign
+         memory or grants.
          Memory could be hotplugged in following steps:
            1) target domain: ensure that memory auto online policy is in



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