[IA64] vti domain save/restore: linux xencomm; add hvm_set/get_context support

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

diff --git a/arch/ia64/xen/xcom_privcmd.c b/arch/ia64/xen/xcom_privcmd.c
index 09ac9d894ae5377a2a3b2f5738cc16aa1ebaa9dd..6dde9dd35a43c134e7d90ee5c43d713c6eb45b88 100644 (file)
--- a/arch/ia64/xen/xcom_privcmd.c
+++ b/arch/ia64/xen/xcom_privcmd.c
@@ -302,6 +302,17 @@ xencomm_privcmd_domctl(privcmd_hypercall_t *hypercall)
                set_xen_guest_handle(kern_op.u.vcpuaffinity.cpumap.bitmap,
                                     (void *)desc);
                break;
+       case XEN_DOMCTL_gethvmcontext:
+       case XEN_DOMCTL_sethvmcontext:
+               if (kern_op.u.hvmcontext.size > 0)
+                       desc = xencomm_map(
+                               xen_guest_handle(kern_op.u.hvmcontext.buffer),
+                               kern_op.u.hvmcontext.size);
+               if (xen_guest_handle(kern_op.u.hvmcontext.buffer) != NULL &&
+                   kern_op.u.hvmcontext.size > 0 && desc == NULL)
+                       return -ENOMEM;
+               set_xen_guest_handle(kern_op.u.hvmcontext.buffer, (void*)desc);
+               break;
        case XEN_DOMCTL_max_vcpus:
        case XEN_DOMCTL_scheduler_op:
        case XEN_DOMCTL_setdomainhandle: