Re: [PATCH 1/2] xen: expand BALLOON_MEMORY_HOTPLUG description

From: JÃrgen GroÃ
Date: Tue Mar 24 2020 - 11:13:51 EST


On 24.03.20 16:00, Roger Pau Monne wrote:
To mention it's also useful for PVH or HVM domains that require
mapping foreign memory or grants.

Signed-off-by: Roger Pau Monnà <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

I'd rather say "(non PV)" or "(PVH, HVM or Arm)".

+ 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


With that:

Reviewed-by: Juergen Gross <jgross@xxxxxxxx>


Juergen