lib{xc,xl}: Seed grant tables with xenstore and console grants

This patch claims one reserved grant entry for the console and another
for the xenstore. It modifies the builder to fill in the grant table
entries for the console and the xenstore.

Previous versions of this patch have been sent to xen-devel. See
http://lists.xensource.com/archives/html/xen-devel/2008-07/msg00610.html
http://lists.xensource.com/archives/html/xen-devel/2009-03/msg01491.html

Signed-off-by: Diego Ongaro <diego.ongaro@citrix.com>
Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/tools/libxc/xc_domain_restore.c b/tools/libxc/xc_domain_restore.c
index 3fda6f8c68..06bea86718 100644
--- a/tools/libxc/xc_domain_restore.c
+++ b/tools/libxc/xc_domain_restore.c
@@ -1259,7 +1259,8 @@ static int apply_batch(xc_interface *xch, uint32_t dom, struct restore_ctx *ctx,
 
 int xc_domain_restore(xc_interface *xch, int io_fd, uint32_t dom,
                       unsigned int store_evtchn, unsigned long *store_mfn,
-                      unsigned int console_evtchn, unsigned long *console_mfn,
+                      domid_t store_domid, unsigned int console_evtchn,
+                      unsigned long *console_mfn, domid_t console_domid,
                       unsigned int hvm, unsigned int pae, int superpages,
                       int no_incr_generationid,
                       unsigned long *vm_generationid_addr)
@@ -2018,6 +2019,14 @@ int xc_domain_restore(xc_interface *xch, int io_fd, uint32_t dom,
         memcpy(ctx->live_p2m, ctx->p2m, dinfo->p2m_size * sizeof(xen_pfn_t));
     munmap(ctx->live_p2m, P2M_FL_ENTRIES * PAGE_SIZE);
 
+    rc = xc_dom_gnttab_seed(xch, dom, *console_mfn, *store_mfn,
+                            console_domid, store_domid);
+    if (rc != 0)
+    {
+        ERROR("error seeding grant table");
+        goto out;
+    }
+
     DPRINTF("Domain ready to be built.\n");
     rc = 0;
     goto out;
@@ -2076,6 +2085,14 @@ int xc_domain_restore(xc_interface *xch, int io_fd, uint32_t dom,
         goto out;
     }
 
+    rc = xc_dom_gnttab_hvm_seed(xch, dom, *console_mfn, *store_mfn,
+                                console_domid, store_domid);
+    if (rc != 0)
+    {
+        ERROR("error seeding grant table");
+        goto out;
+    }
+
     /* HVM success! */
     rc = 0;