From f6793139c15aeb5ca2e656cd6ddf119982eacaf1 Mon Sep 17 00:00:00 2001
From: TuxSH <1922548+TuxSH@users.noreply.github.com>
Date: Fri, 21 Feb 2020 00:16:54 +0000
Subject: [PATCH] thermosphere: fix exception vector regression

---
 thermosphere/src/exception_vectors.s | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/thermosphere/src/exception_vectors.s b/thermosphere/src/exception_vectors.s
index 19e1618d0..618c73b8b 100644
--- a/thermosphere/src/exception_vectors.s
+++ b/thermosphere/src/exception_vectors.s
@@ -79,15 +79,15 @@
 
 .macro PIVOT_STACK_FOR_CRASH
     // Note: replace sp_el1 with crashing sp (for convenience)
-    // The way we do things means that exception stack ptr won't be reset on double fault
     // (sp_el2 is not accessible at el2)
     msr     spsel, #0
-    str     x0, [sp, #-0x10]
-    msr     spsel, #1
+    stp     x0, x1, [sp, #-0x10]
     mov     x0, sp
-    msr     sp_el1, x0
-    msr     spsel, #0
-    ldr     x0, [sp, #-0x10]
+    msr     spsel, #1
+    mov     x1, sp
+    mov     sp, x0
+    msr     sp_el1, x1
+    ldp     x0, x1, [sp, #-0x10]
 .endm
 
 #define     EXCEPTION_TYPE_HOST            0