[PATCH v13 09/10] xsm: add platform QoS related xsm policies

[Dongxiao Xu <dongxiao.xu@intel.com>]

Add xsm policies for QoS monitoring related hypercalls.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---
 tools/flask/policy/policy/modules/xen/xen.if | 2 +-
 tools/flask/policy/policy/modules/xen/xen.te | 3 ++-
 xen/xsm/flask/hooks.c                        | 7 +++++++
 xen/xsm/flask/policy/access_vectors          | 4 ++++
 4 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/tools/flask/policy/policy/modules/xen/xen.if b/tools/flask/policy/policy/modules/xen/xen.if
index dedc035..5e7042c 100644
--- a/tools/flask/policy/policy/modules/xen/xen.if
+++ b/tools/flask/policy/policy/modules/xen/xen.if
@@ -49,7 +49,7 @@ define(`create_domain_common', `
 			getdomaininfo hypercall setvcpucontext setextvcpucontext
 			getscheduler getvcpuinfo getvcpuextstate getaddrsize
 			getaffinity setaffinity };
-	allow $1 $2:domain2 { set_cpuid settsc setscheduler setclaim  set_max_evtchn };
+	allow $1 $2:domain2 { set_cpuid settsc setscheduler setclaim set_max_evtchn pqos_monitor_op };
 	allow $1 $2:security check_context;
 	allow $1 $2:shadow enable;
 	allow $1 $2:mmu { map_read map_write adjust memorymap physmap pinpage mmuext_op };
diff --git a/tools/flask/policy/policy/modules/xen/xen.te b/tools/flask/policy/policy/modules/xen/xen.te
index 562b8df..fc3fdb2 100644
--- a/tools/flask/policy/policy/modules/xen/xen.te
+++ b/tools/flask/policy/policy/modules/xen/xen.te
@@ -66,6 +66,7 @@ allow dom0_t xen_t:xen {
 };
 allow dom0_t xen_t:xen2 {
     resource_op
+    pqos_monitor_op
 };
 allow dom0_t xen_t:mmu memorymap;
 
@@ -79,7 +80,7 @@ allow dom0_t dom0_t:domain {
 	getpodtarget setpodtarget set_misc_info set_virq_handler
 };
 allow dom0_t dom0_t:domain2 {
-	set_cpuid gettsc settsc setscheduler set_max_evtchn
+	set_cpuid gettsc settsc setscheduler set_max_evtchn pqos_monitor_op
 };
 allow dom0_t dom0_t:resource { add remove };
 
diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c
index fcfed25..7d3fb52 100644
--- a/xen/xsm/flask/hooks.c
+++ b/xen/xsm/flask/hooks.c
@@ -715,6 +715,9 @@ static int flask_domctl(struct domain *d, int cmd)
     case XEN_DOMCTL_cacheflush:
         return current_has_perm(d, SECCLASS_DOMAIN2, DOMAIN2__CACHEFLUSH);
 
+    case XEN_DOMCTL_pqos_monitor_op:
+        return current_has_perm(d, SECCLASS_DOMAIN2, DOMAIN2__PQOS_MONITOR_OP);
+
     default:
         printk("flask_domctl: Unknown op %d\n", cmd);
         return -EPERM;
@@ -770,6 +773,10 @@ static int flask_sysctl(int cmd)
     case XEN_SYSCTL_numainfo:
         return domain_has_xen(current->domain, XEN__PHYSINFO);
 
+    case XEN_SYSCTL_pqos_monitor_op:
+        return avc_current_has_perm(SECINITSID_XEN, SECCLASS_XEN2,
+                                    XEN2__PQOS_MONITOR_OP, NULL);
+
     default:
         printk("flask_sysctl: Unknown op %d\n", cmd);
         return -EPERM;
diff --git a/xen/xsm/flask/policy/access_vectors b/xen/xsm/flask/policy/access_vectors
index b606441..fd71ac7 100644
--- a/xen/xsm/flask/policy/access_vectors
+++ b/xen/xsm/flask/policy/access_vectors
@@ -81,6 +81,8 @@ class xen2
 {
 # XENPF_resource_op
     resource_op
+# XEN_SYSCTL_pqos_monitor_op
+    pqos_monitor_op
 }
 
 # Classes domain and domain2 consist of operations that a domain performs on
@@ -208,6 +210,8 @@ class domain2
     cacheflush
 # Creation of the hardware domain when it is not dom0
     create_hardware_domain
+# XEN_DOMCTL_pqos_monitor_op
+    pqos_monitor_op
 }
 
 # Similar to class domain, but primarily contains domctls related to HVM domains
-- 
1.8.1.5