[xen master] xen/ppc: Fix stack initialization in head.S

[patchbot@xxxxxxx]

commit 2797a717121cda0da5eeea3a17203d1c155c5e54
Author:     Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Thu Sep 28 18:19:27 2023 -0500
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Fri Sep 29 10:50:37 2023 +0100

    xen/ppc: Fix stack initialization in head.S
    
    The code to set up the stack in head.S erroneously loads the bottom of
    the stack (the symbol cpu0_boot_stack) into r1 instead of the top of the
    stack (cpu0_boot_stack + STACK_SIZE).
    
    Fixes: 3a4e6f67bc68 ("xen/ppc: Set up a basic C environment")
    Signed-off-by: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Release-acked-by: Henry Wang <Henry.Wang@xxxxxxx>
---
 xen/arch/ppc/ppc64/head.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/ppc/ppc64/head.S b/xen/arch/ppc/ppc64/head.S
index e600ddb05f..6ce313aff8 100644
--- a/xen/arch/ppc/ppc64/head.S
+++ b/xen/arch/ppc/ppc64/head.S
@@ -46,7 +46,7 @@ ENTRY(start)
 .L_correct_address:
 
     /* set up the initial stack */
-    LOAD_REG_ADDR(%r1, cpu0_boot_stack)
+    LOAD_REG_ADDR(%r1, cpu0_boot_stack + STACK_SIZE)
     li      %r11, 0
     stdu    %r11, -STACK_FRAME_OVERHEAD(%r1)
 
--
generated by git-patchbot for /home/xen/git/xen.git#master