From c566ffadec51aecafbda17e3830d063966b634fd Mon Sep 17 00:00:00 2001 From: Tamas K Lengyel Date: Wed, 24 Jun 2015 10:33:05 +0200 Subject: [PATCH] x86/mem_sharing: relax sanity check for memops The sharing vm_event ring being enabled is not necessary for mem_sharing memops. Signed-off-by: Tamas K Lengyel Reviewed-by: Andres Lagar-Cavilla --- xen/arch/x86/mm/mem_sharing.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c index 0700f0019a..16e329eb2f 100644 --- a/xen/arch/x86/mm/mem_sharing.c +++ b/xen/arch/x86/mm/mem_sharing.c @@ -1320,10 +1320,6 @@ int mem_sharing_memop(XEN_GUEST_HANDLE_PARAM(xen_mem_sharing_op_t) arg) if ( !hap_enabled(d) || !d->arch.hvm_domain.mem_sharing_enabled ) goto out; - rc = -ENODEV; - if ( unlikely(!d->vm_event->share.ring_page) ) - goto out; - switch ( mso.op ) { case XENMEM_sharing_op_nominate_gfn: -- 2.30.2