1 /*
2  * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef RMMD_INITIAL_CONTEXT_H
8 #define RMMD_INITIAL_CONTEXT_H
9 
10 #include <arch.h>
11 
12 /*
13  * SPSR_EL2
14  *   M=0x9 (0b1001 EL2h)
15  *   M[4]=0
16  *   DAIF=0xF Exceptions masked on entry.
17  *   BTYPE=0  BTI not yet supported.
18  *   SSBS=0   Not yet supported.
19  *   IL=0     Not an illegal exception return.
20  *   SS=0     Not single stepping.
21  *   PAN=1    RMM shouldn't access realm memory.
22  *   UAO=0
23  *   DIT=0
24  *   TCO=0
25  *   NZCV=0
26  */
27 #define REALM_SPSR_EL2		(					\
28 					SPSR_M_EL2H			| \
29 					(0xF << SPSR_DAIF_SHIFT)	| \
30 					SPSR_PAN_BIT			\
31 				)
32 
33 #endif /* RMMD_INITIAL_CONTEXT_H */
34