xen/domctl: Remove XEN_DOMCTL_set_gnttab_limits

Now that XEN_DOMCTL_createdomain handles the grant table limits, remove
XEN_DOMCTL_set_gnttab_limits (including XSM hooks and libxc wrappers).

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

tools/flask/policy/modules/dom0.te

@@ -39,7 +39,7 @@ allow dom0_t dom0_t:domain {
 };
 allow dom0_t dom0_t:domain2 {
 	set_cpuid gettsc settsc setscheduler set_vnumainfo
-	get_vnumainfo psr_cmt_op psr_alloc set_gnttab_limits
+	get_vnumainfo psr_cmt_op psr_alloc
 };
 allow dom0_t dom0_t:resource { add remove };
 

tools/flask/policy/modules/xen.if

@@ -52,7 +52,7 @@ define(`create_domain_common', `
 			settime setdomainhandle getvcpucontext set_misc_info };
 	allow $1 $2:domain2 { set_cpuid settsc setscheduler setclaim
 			set_vnumainfo get_vnumainfo cacheflush
-			psr_cmt_op psr_alloc soft_reset set_gnttab_limits
+			psr_cmt_op psr_alloc soft_reset
 			resource_map };
 	allow $1 $2:security check_context;
 	allow $1 $2:shadow enable;

tools/helpers/init-xenstore-domain.c

@@ -112,13 +112,6 @@ static int build(xc_interface *xch)
         fprintf(stderr, "xc_domain_setmaxmem failed\n");
         goto err;
     }
-    rv = xc_domain_set_gnttab_limits(xch, domid, config.max_grant_frames,
-                                     config.max_maptrack_frames);
-    if ( rv )
-    {
-        fprintf(stderr, "xc_domain_set_gnttab_limits failed\n");
-        goto err;
-    }
     rv = xc_domain_set_memmap_limit(xch, domid, limit_kb);
     if ( rv )
     {

tools/libxc/include/xenctrl.h

@@ -1081,19 +1081,6 @@ int xc_domain_set_access_required(xc_interface *xch,
  */
 int xc_domain_set_virq_handler(xc_interface *xch, uint32_t domid, int virq);
 
-/**
- * Set the maximum number of grant frames and maptrack frames a domain
- * can have. Must be used at domain setup time and only then.
- *
- * @param xch a handle to an open hypervisor interface
- * @param domid the domain id
- * @param grant_frames max. number of grant frames
- * @param maptrack_frames max. number of maptrack frames
- */
-int xc_domain_set_gnttab_limits(xc_interface *xch, uint32_t domid,
-                                uint32_t grant_frames,
-                                uint32_t maptrack_frames);
-
 /*
  * CPUPOOL MANAGEMENT FUNCTIONS
  */

tools/libxc/xc_domain.c

@@ -2257,19 +2257,6 @@ int xc_domain_set_virq_handler(xc_interface *xch, uint32_t domid, int virq)
     return do_domctl(xch, &domctl);
 }
 
-int xc_domain_set_gnttab_limits(xc_interface *xch, uint32_t domid,
-                                uint32_t grant_frames,
-                                uint32_t maptrack_frames)
-{
-    DECLARE_DOMCTL;
-
-    domctl.cmd = XEN_DOMCTL_set_gnttab_limits;
-    domctl.domain = domid;
-    domctl.u.set_gnttab_limits.grant_frames = grant_frames;
-    domctl.u.set_gnttab_limits.maptrack_frames = maptrack_frames;
-    return do_domctl(xch, &domctl);
-}
-
 /* Plumbing Xen with vNUMA topology */
 int xc_domain_setvnuma(xc_interface *xch,
                        uint32_t domid,

tools/libxl/libxl_dom.c

@@ -358,12 +358,6 @@ int libxl__build_pre(libxl__gc *gc, uint32_t domid,
         return ERROR_FAIL;
     }
 
-    if (xc_domain_set_gnttab_limits(ctx->xch, domid, info->max_grant_frames,
-                                    info->max_maptrack_frames) != 0) {
-        LOG(ERROR, "Couldn't set grant table limits");
-        return ERROR_FAIL;
-    }
-
     /*
      * Check if the domain has any CPU or node affinity already. If not, try
      * to build up the latter via automatic NUMA placement. In fact, in case