feat(plat/arm): add GPT initialization code for Arm platforms
When RME is enabled, during configuration of the TrustZone controller,
Root regions are initially configured as Secure regions, and Realm
regions as Non-secure regions. Then later these regions are configured
as Root and Realm regions respectively in the GPT. According to the RME
architecture reference manual, Root firmware must ensure that Granule
Protection Check is enabled before enabling any stage of translation.
Therefore initializations are done as follows when RME is enabled :
Initialize/enable the TrustZone controller (plat_arm_security_setup) -->
Initialize/enable GPC (arm_bl2_plat_gpt_setup) -->
enable MMU (enable_mmu_el3)
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I91094e8259079437bee02de1f65edb9ad51e43cf
diff --git a/include/plat/arm/common/arm_pas_def.h b/include/plat/arm/common/arm_pas_def.h
index a8ebee3..d268ce6 100644
--- a/include/plat/arm/common/arm_pas_def.h
+++ b/include/plat/arm/common/arm_pas_def.h
@@ -87,4 +87,9 @@
ARM_L1_GPT_SIZE, \
GPI_ROOT)
+/* GPT Configuration options */
+#define PLATFORM_PGS GPCCR_PGS_4K
+#define PLATFORM_PPS GPCCR_PPS_4GB
+#define PLATFORM_L0GPTSZ GPCCR_L0GPTSZ_30BITS
+
#endif /* ARM_PAS_DEF_H */