On 14/10/2024 20:11, Luca Fancellu wrote:
Hi Ayan,
Hi Luca,
Sorry I missed something.
/*
* Maps the various sections of Xen (described in xen.lds.S) as different MPU
* regions.
@@ -68,10 +92,11 @@
* Inputs:
* lr : Address to return to.
*
- * Clobbers x0 - x5
+ * Clobbers x0 - x6
*
*/
FUNC(enable_boot_cpu_mm)
+ mov x6, lr
/* Check if the number of regions exceeded the count specified in
MPUIR_EL2 */
mrs x5, MPUIR_EL2
@@ -113,7 +138,7 @@ FUNC(enable_boot_cpu_mm)
beq 5f
prepare_xen_region x0, x1, x2, x3, x4, x5
bl enable_mpu
-5:
+5: mov lr, x6
Shall these changes to enable_boot_cpu_mm be part of the previous commit?
This is why I had to save and restore the LR.
- Ayan
