Tools: Add libxc wrapper for p2m audit domctl

Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Tim Deegan <tim@xen.org>

diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index 5d2a4df1b337521ddfcc3b0e163650ffdb023b5d..306b2122bc94373ead75dcb2df128ff5b115047e 100644 (file)
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -1472,6 +1472,28 @@ int xc_domain_debug_control(xc_interface *xc, uint32_t domid, uint32_t sop, uint
     return do_domctl(xc, &domctl);
 }
 
+int xc_domain_p2m_audit(xc_interface *xch, 
+                        uint32_t domid,
+                        uint64_t *orphans_debug,
+                        uint64_t *orphans_invalid,
+                        uint64_t *m2p_bad,   
+                        uint64_t *p2m_bad)
+{
+    DECLARE_DOMCTL;
+    int rc;
+
+    domctl.cmd = XEN_DOMCTL_audit_p2m;
+    domctl.domain = domid;
+    rc = do_domctl(xch, &domctl);
+
+    *orphans_debug      = domctl.u.audit_p2m.orphans_debug;
+    *orphans_invalid    = domctl.u.audit_p2m.orphans_invalid;
+    *m2p_bad            = domctl.u.audit_p2m.m2p_bad;
+    *p2m_bad            = domctl.u.audit_p2m.p2m_bad;
+
+    return rc;
+}
+
 int xc_domain_set_access_required(xc_interface *xch,
                                   uint32_t domid,
                                   unsigned int required)

diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h
index ad94f46b9d2d13f9da80254ba760cf888ce28ae9..9e2a4373f4e429718ec15da092753aff372684c6 100644 (file)
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -711,6 +711,33 @@ int xc_domain_setdebugging(xc_interface *xch,
                            uint32_t domid,
                            unsigned int enable);
 
+/**
+ * This function audits the (top level) p2m of a domain 
+ * and returns the different error counts, if any.
+ *
+ * @parm xch a handle to an open hypervisor interface
+ * @parm domid the domain id whose top level p2m we 
+ *       want to audit
+ * @parm orphans_debug count of m2p entries for valid
+ *       domain pages containing a debug value
+ * @parm orphans_invalid count of m2p entries for valid
+ *       domain pages containing an invalid value
+ * @parm m2p_bad count of m2p entries mismatching the
+ *       associated p2m entry for this domain
+ * @parm p2m_bad count of p2m entries for this domain
+ *       mismatching the associated m2p entry
+ * return 0 on success, -1 on failure
+ * errno values on failure include: 
+ *          -ENOSYS: not implemented
+ *          -EFAULT: could not copy results back to guest
+ */
+int xc_domain_p2m_audit(xc_interface *xch,
+                                       uint32_t domid,
+                        uint64_t *orphans_debug,
+                        uint64_t *orphans_invalid,
+                        uint64_t *m2p_bad,   
+                        uint64_t *p2m_bad);
+
 /**
  * This function sets or clears the requirement that an access memory
  * event listener is required on the domain.