[XenPPC] [linux-ppc-2.6] [POWERPC][XEN][LINUX] Always construct a start_info_t from device tree properties.

["Xen patchbot-linux-ppc-2.6" <patchbot-linux-ppc-2.6@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Hollis Blanchard <hollisb@xxxxxxxxxx>
# Date 1172781585 21600
# Node ID 7638780944199b7dad6cc4f017e26cde99f0e695
# Parent  3e512eaf2a6f0f740331bc891fbc0a29392a2794
[POWERPC][XEN][LINUX] Always construct a start_info_t from device tree 
properties.
Xen used to create one for Dom0, but no longer.
Signed-off-by: Ryan Harper <ryanh@xxxxxxxxxx>
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
---
 arch/powerpc/platforms/xen/setup.c |   35 ++++++++++++++++-------------------
 1 files changed, 16 insertions(+), 19 deletions(-)

diff -r 3e512eaf2a6f -r 763878094419 arch/powerpc/platforms/xen/setup.c
--- a/arch/powerpc/platforms/xen/setup.c        Thu Mar 01 10:27:39 2007 -0600
+++ b/arch/powerpc/platforms/xen/setup.c        Thu Mar 01 14:39:45 2007 -0600
@@ -32,7 +32,7 @@ EXPORT_SYMBOL(HYPERVISOR_shared_info);
 EXPORT_SYMBOL(HYPERVISOR_shared_info);
 
 /* Raw start-of-day parameters from the hypervisor. */
-start_info_t xsi;
+static start_info_t xsi;
 start_info_t *xen_start_info;
 EXPORT_SYMBOL(xen_start_info);
 
@@ -89,29 +89,26 @@ static void __init xen_init_early(void)
 static void __init xen_init_early(void)
 {
        struct device_node *xen;
-       u64 *si;
 
        DBG(" -> %s\n", __func__);
 
        xen = of_find_node_by_path("/xen");
 
-       si = (u64 *)get_property(xen, "start-info", NULL);
-
-       /* build our own start_info_t if start-info property is not present */
-       if (si != NULL) {
-               xen_start_info = (start_info_t *)__va(*si);
-       } else {
-               struct device_node *console;
-               struct device_node *store;
-
-               console = of_find_node_by_path("/xen/console");
-               store = of_find_node_by_path("/xen/store");
-
-               xen_start_info = &xsi;
-
-               /* fill out start_info_t from devtree */
-               xen_start_info->shared_info = *((u64 *)get_property(xen, 
-                  "shared-info", NULL));
+       xen_start_info = &xsi;
+
+       /* fill out start_info_t from devtree */
+       if ((char *)get_property(xen, "privileged", NULL))
+               xen_start_info->flags |= SIF_PRIVILEGED;
+       if ((char *)get_property(xen, "initdomain", NULL))
+               xen_start_info->flags |= SIF_INITDOMAIN;
+       xen_start_info->shared_info = *((u64 *)get_property(xen, 
+          "shared-info", NULL));
+
+       /* only look for store and console for guest domains */
+       if (xen_start_info->flags == 0) {
+               struct device_node *console = 
of_find_node_by_path("/xen/console");
+               struct device_node *store = of_find_node_by_path("/xen/store");
+
                xen_start_info->store_mfn = (*((u64 *)get_property(store,
                   "reg", NULL))) >> PAGE_SHIFT;
                xen_start_info->store_evtchn = *((u32 *)get_property(store,

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