David Vrabel
2011-Aug-23 17:08 UTC
[Xen-devel] [PATCH] x86: don''t limit dom0''s maximum reservation by the available memory
# HG changeset patch
# User David Vrabel <david.vrabel@citrix.com>
# 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@citrix.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Keir Fraser <keir@xen.org>
---
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;
}
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Jan Beulich
2011-Aug-24 08:25 UTC
Re: [Xen-devel] [PATCH] x86: don''t limit dom0''s maximum reservation by the available memory
>>> On 23.08.11 at 19:08, David Vrabel <david.vrabel@citrix.com> wrote: > # HG changeset patch > # User David Vrabel <david.vrabel@citrix.com> > # 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@citrix.com> > Cc: Jan Beulich <JBeulich@novell.com>Acked-by: Jan Beulich <jbeulich@novell.com>> Cc: Keir Fraser <keir@xen.org> > --- > 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@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel