Add tests for MTE support
TF-A now has support for the new Memory Tagging Extension in ARMv8.5,
see commit 91624b7fed52 ("Merge changes from topic "jc/mte_enable"
into integration").
This patch creates and enables tests to ensure that the extension is
being properly enabled and that no undesired leakages occur.
Change-Id: I7708fb23a12e2f35a97533f296aaa53db776ddd2
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index a62f13c..1d5cc11 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -222,6 +222,13 @@
#define SSBS_UNAVAILABLE ULL(0) /* No architectural SSBS support */
+#define ID_AA64PFR1_EL1_MTE_SHIFT U(8)
+#define ID_AA64PFR1_EL1_MTE_MASK ULL(0xf)
+
+#define MTE_UNIMPLEMENTED ULL(0)
+#define MTE_IMPLEMENTED_EL0 ULL(1) /* MTE is only implemented at EL0 */
+#define MTE_IMPLEMENTED_ELX ULL(2) /* MTE is implemented at all ELs */
+
/* ID_PFR1_EL1 definitions */
#define ID_PFR1_VIRTEXT_SHIFT U(12)
#define ID_PFR1_VIRTEXT_MASK U(0xf)
@@ -278,6 +285,7 @@
/* SCR definitions */
#define SCR_RES1_BITS ((U(1) << 4) | (U(1) << 5))
+#define SCR_ATA_BIT (U(1) << 26)
#define SCR_FIEN_BIT (U(1) << 21)
#define SCR_API_BIT (U(1) << 17)
#define SCR_APK_BIT (U(1) << 16)
@@ -903,4 +911,12 @@
******************************************************************************/
#define SSBS S3_3_C4_C2_6
+/*******************************************************************************
+ * Armv8.5 - Memory Tagging Extension Registers
+ ******************************************************************************/
+#define TFSRE0_EL1 S3_0_C5_C6_1
+#define TFSR_EL1 S3_0_C5_C6_0
+#define RGSR_EL1 S3_0_C1_C0_5
+#define GCR_EL1 S3_0_C1_C0_6
+
#endif /* ARCH_H */