Messages in this thread Patch in this message | | | From | Roger Pau Monne <> | Subject | [PATCH 1/2] xen: expand BALLOON_MEMORY_HOTPLUG description | Date | Tue, 24 Mar 2020 16:00:14 +0100 |
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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@citrix.com> --- Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: xen-devel@lists.xenproject.org --- 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 -- 2.25.0
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