diff options
| -rw-r--r-- | xen/arch/x86/mm/p2m.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c index 51ef7116ca..787b4be6a3 100644 --- a/xen/arch/x86/mm/p2m.c +++ b/xen/arch/x86/mm/p2m.c @@ -1725,6 +1725,8 @@ void p2m_teardown(struct domain *d) #ifdef __x86_64__ for ( gfn=0; gfn < p2m->max_mapped_pfn; gfn++ ) { + if ( atomic_read(&d->shr_pages) == 0 ) + break; mfn = p2m->get_entry(d, gfn, &t, p2m_query); if ( mfn_valid(mfn) && (t == p2m_ram_shared) ) BUG_ON(mem_sharing_unshare_page(d, gfn, MEM_SHARING_DESTROY_GFN)); |