commit 1fe83888a2b776c204cb06629700adfb8e9cc123
author Roger Pau Monne <roger.pau@citrix.com> Fri Jun 08 10:40:38 2018 +0200
committer Juergen Gross <jgross@suse.com> Tue Jun 19 13:51:00 2018 +0200
tree 3d7ad3e848fceb53b69bc727af09b03839520af0
parent 7f47e1c52d0c850cbd24aab763ce6bab11bdb4b2

xen: share start flags between PV and PVH

Use a global variable to store the start flags for both PV and PVH.
This allows the xen_initial_domain macro to work properly on PVH.

Note that ARM is also switched to use the new variable.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>

arch/x86/xen/enlighten.c

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c9081c6..3b53185 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -65,6 +65,13 @@ __read_mostly int xen_have_vector_callback;
 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
 
 /*
+ * NB: needs to live in .data because it's used by xen_prepare_pvh which runs
+ * before clearing the bss.
+ */
+uint32_t xen_start_flags __attribute__((section(".data"))) = 0;
+EXPORT_SYMBOL(xen_start_flags);
+
+/*
  * Point at some empty memory to start with. We map the real shared_info
  * page as soon as fixmap is up and running.
  */