The current code has an early exit for PV guests, but it returns 0 having done
nothing.
Fixes: 524a98c2ac5 ("public / x86: introduce __HYPERCALL_dm_op...")
Signed-off-by: Andrew Cooper <[email protected]>
---
CC: Jan Beulich <[email protected]>
CC: Roger Pau Monné <[email protected]>
CC: Wei Liu <[email protected]>
CC: Ian Jackson <[email protected]>
CC: Paul Durrant <[email protected]>
For 4.15. Found while testing XEN_DMOP_nr_vcpus. Needs backporting to all
stable releases.
---
xen/arch/x86/hvm/dm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/xen/arch/x86/hvm/dm.c b/xen/arch/x86/hvm/dm.c
index 5bc172a5d4..612749442e 100644
--- a/xen/arch/x86/hvm/dm.c
+++ b/xen/arch/x86/hvm/dm.c
@@ -365,6 +365,7 @@ int dm_op(const struct dmop_args *op_args)
if ( rc )
return rc;
+ rc = -EINVAL;
if ( !is_hvm_domain(d) )
goto out;
--
2.11.0
