[PATCH v2] x86/boot: Setup correctly fs segment for bogus_real_magic

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

bogus_real_magic code uses fs segment so it should be initialised.

Fixes: d8c8fef09054 ("Provide basic Xen PM infrastructure")
Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
---
Changes since v1:
- added "Fixes" comment;
- add initialisation, do not remove old one.
---
 xen/arch/x86/boot/wakeup.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/arch/x86/boot/wakeup.S b/xen/arch/x86/boot/wakeup.S
index 08447e1934..99ac8594b8 100644
--- a/xen/arch/x86/boot/wakeup.S
+++ b/xen/arch/x86/boot/wakeup.S
@@ -20,6 +20,8 @@ ENTRY(wakeup_start)
         movw    %ax, %ds
         movw    %ax, %ss        # A stack required for BIOS call
         movw    $wakesym(wakeup_stack), %sp
+        movw    $0xb800, %ax
+        movw    %ax, %fs
 
         pushl   $0              # Kill dangerous flag early
         popfl
-- 
2.34.1