[Xen-devel] [PATCH] x86: don't limit dom0's maximum reservation by the available memory

[David Vrabel <david.vrabel@xxxxxxxxxx>]

# HG changeset patch
# User David Vrabel <david.vrabel@xxxxxxxxxx>
# Date 1314119246 -3600
# Node ID b0f7a5b68726672c131f0a12a819941b4a56a4df
# Parent  1ec6c392d40f37032b0c845094c7ee6ba69740fd
x86: don't limit dom0's maximum reservation by the available memory

Set dom0's initial maximum reservation using the max value supplied in
the dom0_mem command line option without limiting it by the available
memory.

This allows dom0 to make use of any hotplugged memory without having
to also adjust the maximum reservation.

Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Cc: Jan Beulich <JBeulich@xxxxxxxxxx>
Cc: Keir Fraser <keir@xxxxxxx>
---
Please consider for Xen 4.1.2.

diff -r 1ec6c392d40f -r b0f7a5b68726 xen/arch/x86/domain_build.c
--- a/xen/arch/x86/domain_build.c       Mon Aug 15 11:42:37 2011 +0100
+++ b/xen/arch/x86/domain_build.c       Tue Aug 23 18:07:26 2011 +0100
@@ -254,7 +254,7 @@ static unsigned long __init compute_dom0
     }
 #endif
 
-    d->max_pages = min(max_pages, avail);
+    d->max_pages = min_t(unsigned long, max_pages, UINT_MAX);
 
     return nr_pages;
 }

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel