Add vpush/vpop to the exception handler as we added CopyMem/SetMem that can use NEON...

[mirror_edk2.git] / ArmPkg / Drivers / CpuDxe / ExceptionSupport.ARMv6.asm

diff --git a/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm b/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm
index 8584ef079448d219ab6c3c9386da57aa7ec25b34..a8a477026eeb1636bd949f1ee8a2e72b13fefd58 100644 (file)
--- a/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm
+++ b/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm
@@ -243,6 +243,8 @@ NoAdjustNeeded
                                     ; R0 is ExceptionType 
   mov       R1,SP                   ; R1 is SystemContext 
 
+  vpush    {d0-d15}                  ; save vstm registers in case they are used in optimizations\r
+
 /* 
 VOID
 EFIAPI
@@ -253,6 +255,8 @@ CommonCExceptionHandler (
 
 */
   blx       CommonCExceptionHandler ; Call exception handler
+\r
+  vpop      {d0-d15}\r
   
   ldr       R1, [SP, #0x4c]         ; Restore EFI_SYSTEM_CONTEXT_ARM.IFSR
   mcr       p15, 0, R1, c5, c0, 1   ; Write IFSR