xen: Add versions of rcu_lock_*_domain without IS_PRIV

These functions will be used to avoid duplication of IS_PRIV calls
that will be introduced in XSM hooks. This also fixes a build error
with XSM enabled introduced by 25925:d1c3375c3f11 which depends on
this patch.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Committed-by: Keir Fraser <keir@xen.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
index 53804c87d5..b0def4a424 100644
--- a/xen/include/xen/sched.h
+++ b/xen/include/xen/sched.h
@@ -447,6 +447,11 @@ struct domain *domain_create(
 struct domain *rcu_lock_domain_by_id(domid_t dom);
 
 /*
+ * As above function, but resolves DOMID_SELF to current domain
+ */
+struct domain *rcu_lock_domain_by_any_id(domid_t dom);
+
+/*
  * As above function, but accounts for current domain context:
  *  - Translates target DOMID_SELF into caller's domain id; and
  *  - Checks that caller has permission to act on the target domain.
@@ -460,6 +465,12 @@ int rcu_lock_target_domain_by_id(domid_t dom, struct domain **d);
  */
 int rcu_lock_remote_target_domain_by_id(domid_t dom, struct domain **d);
 
+/*
+ * As rcu_lock_domain_by_id(), but will fail EPERM or ESRCH rather than resolve
+ * to local domain.
+ */
+int rcu_lock_remote_domain_by_id(domid_t dom, struct domain **d);
+
 /* Finish a RCU critical region started by rcu_lock_domain_by_id(). */
 static inline void rcu_unlock_domain(struct domain *d)
 {