The sharing vm_event ring being enabled is not necessary for mem_sharing
memops.
Signed-off-by: Tamas K Lengyel <tkleng...@sec.in.tum.de>
---
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 0700f00..16e329e 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:
--
2.1.4
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