Commit 72f28071 authored by Ian Campbell's avatar Ian Campbell Committed by Konrad Rzeszutek Wilk

xen: balloon: enable for ARM

Since c275a57f "xen/balloon: Set balloon's initial state to number of
existing RAM pages" the balloon driver appears to work fine on ARM as far as I
can tell. Prior to that commit it was broken because on ARM RAM doesn't
typically start at zero, effectively leaving a big MMIO hole at the start.
This would cause the balloon driver to give away all of RAM at start of day,
which is rather inconvenient.

It was already enabled (or rather not excluded) on ARM64. The
c1d15f5c
"xen/balloon: Seperate the auto-translate logic properly (v2)"
added in the proper plumbing to work with ARM and PVH type guests.
Signed-off-by: default avatarIan Campbell <ian.campbell@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
[v2: Added the bit about PVH]
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 6f6c15ef
......@@ -3,7 +3,6 @@ menu "Xen driver support"
config XEN_BALLOON
bool "Xen memory balloon driver"
depends on !ARM
default y
help
The balloon driver allows the Xen domain to request more memory from
......
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