Like for PV, 32-bit guests need to invoke the compat handler, not the
native one.
Fixes: db984809d61b ("hvm: wire up domctl and xsm hypercalls")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/arch/x86/hvm/hypercall.c
+++ b/xen/arch/x86/hvm/hypercall.c
@@ -138,7 +138,7 @@ static const struct {
HYPERCALL(event_channel_op),
COMPAT_CALL(sched_op),
COMPAT_CALL(set_timer_op),
- HYPERCALL(xsm_op),
+ COMPAT_CALL(xsm_op),
HYPERCALL(hvm_op),
HYPERCALL(sysctl),
HYPERCALL(domctl),