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openSUSE:Evergreen:11.4
xen.import4929
23706-x86-migration.patch
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File 23706-x86-migration.patch of Package xen.import4929
References: bnc#689954 # HG changeset patch # User Jan Beulich <jbeulich@novell.com> # Date 1310804301 -3600 # Node ID 3dd399873c9ef7762f4353f3259e502394f56a34 # Parent 24e9ca968a2bc09d1aac927fcdbb7b769901d067 x86: fix guest migration after c/s 20892:d311d1efc25e Guests would not manage to run successfully after being migrated to a host having sufficiently much more memory than the host they were originally started on. Subsequently the plan is to re-enable the changes behavior under the control of a guest kernel announced feature flag. Signed-off-by: Jan Beulich <jbeulich@novell.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -4512,7 +4512,7 @@ long arch_memory_op(int op, XEN_GUEST_HA .max_mfn = MACH2PHYS_NR_ENTRIES - 1 }; - if ( !mem_hotplug ) + if ( !mem_hotplug && current->domain == dom0 ) mapping.max_mfn = max_page - 1; if ( copy_to_guest(arg, &mapping, 1) ) return -EFAULT;
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