Aarch64: Add support for FEAT_PANx extensions
This patch provides the changes listed below:
- Adds new bit fields definitions for SCTLR_EL1/2 registers
- Corrects the name of SCTLR_EL1/2.[20] bit field from
SCTLR_UWXN_BIT to SCTLR_TSCXT_BIT
- Adds FEAT_PANx bit field definitions and their possible
values for ID_AA64MMFR1_EL1 register.
- Adds setting of SCTLR_EL1.SPAN bit to preserve PSTATE.PAN
on taking an exception to EL1 in spm_sp_setup() function
(services\std_svc\spm_mm\spm_mm_setup.c)
Change-Id: If51f20e7995c649126a7728a4d0867041fdade19
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h
index 33e1134..29342f7 100644
--- a/include/arch/aarch64/arch.h
+++ b/include/arch/aarch64/arch.h
@@ -243,6 +243,13 @@
#define ID_AA64MMFR1_EL1_TWED_SUPPORTED ULL(0x1)
#define ID_AA64MMFR1_EL1_TWED_NOT_SUPPORTED ULL(0x0)
+#define ID_AA64MMFR1_EL1_PAN_SHIFT U(20)
+#define ID_AA64MMFR1_EL1_PAN_MASK ULL(0xf)
+#define ID_AA64MMFR1_EL1_PAN_NOT_SUPPORTED ULL(0x0)
+#define ID_AA64MMFR1_EL1_PAN_SUPPORTED ULL(0x1)
+#define ID_AA64MMFR1_EL1_PAN2_SUPPORTED ULL(0x2)
+#define ID_AA64MMFR1_EL1_PAN3_SUPPORTED ULL(0x3)
+
/* ID_AA64MMFR2_EL1 definitions */
#define ID_AA64MMFR2_EL1 S3_0_C0_C7_2
@@ -286,6 +293,7 @@
#define SCTLR_EL1_RES1 ((UL(1) << 29) | (UL(1) << 28) | (UL(1) << 23) | \
(UL(1) << 22) | (UL(1) << 20) | (UL(1) << 11))
+
#define SCTLR_AARCH32_EL1_RES1 \
((U(1) << 23) | (U(1) << 22) | (U(1) << 11) | \
(U(1) << 4) | (U(1) << 3))
@@ -300,9 +308,12 @@
#define SCTLR_SA_BIT (ULL(1) << 3)
#define SCTLR_SA0_BIT (ULL(1) << 4)
#define SCTLR_CP15BEN_BIT (ULL(1) << 5)
+#define SCTLR_nAA_BIT (ULL(1) << 6)
#define SCTLR_ITD_BIT (ULL(1) << 7)
#define SCTLR_SED_BIT (ULL(1) << 8)
#define SCTLR_UMA_BIT (ULL(1) << 9)
+#define SCTLR_EnRCTX_BIT (ULL(1) << 10)
+#define SCTLR_EOS_BIT (ULL(1) << 11)
#define SCTLR_I_BIT (ULL(1) << 12)
#define SCTLR_EnDB_BIT (ULL(1) << 13)
#define SCTLR_DZE_BIT (ULL(1) << 14)
@@ -310,21 +321,65 @@
#define SCTLR_NTWI_BIT (ULL(1) << 16)
#define SCTLR_NTWE_BIT (ULL(1) << 18)
#define SCTLR_WXN_BIT (ULL(1) << 19)
-#define SCTLR_UWXN_BIT (ULL(1) << 20)
+#define SCTLR_TSCXT_BIT (ULL(1) << 20)
#define SCTLR_IESB_BIT (ULL(1) << 21)
+#define SCTLR_EIS_BIT (ULL(1) << 22)
+#define SCTLR_SPAN_BIT (ULL(1) << 23)
#define SCTLR_E0E_BIT (ULL(1) << 24)
#define SCTLR_EE_BIT (ULL(1) << 25)
#define SCTLR_UCI_BIT (ULL(1) << 26)
#define SCTLR_EnDA_BIT (ULL(1) << 27)
+#define SCTLR_nTLSMD_BIT (ULL(1) << 28)
+#define SCTLR_LSMAOE_BIT (ULL(1) << 29)
#define SCTLR_EnIB_BIT (ULL(1) << 30)
#define SCTLR_EnIA_BIT (ULL(1) << 31)
#define SCTLR_BT0_BIT (ULL(1) << 35)
#define SCTLR_BT1_BIT (ULL(1) << 36)
#define SCTLR_BT_BIT (ULL(1) << 36)
+#define SCTLR_ITFSB_BIT (ULL(1) << 37)
+#define SCTLR_TCF0_SHIFT U(38)
+#define SCTLR_TCF0_MASK ULL(3)
+
+/* Tag Check Faults in EL0 have no effect on the PE */
+#define SCTLR_TCF0_NO_EFFECT U(0)
+/* Tag Check Faults in EL0 cause a synchronous exception */
+#define SCTLR_TCF0_SYNC U(1)
+/* Tag Check Faults in EL0 are asynchronously accumulated */
+#define SCTLR_TCF0_ASYNC U(2)
+/*
+ * Tag Check Faults in EL0 cause a synchronous exception on reads,
+ * and are asynchronously accumulated on writes
+ */
+#define SCTLR_TCF0_SYNCR_ASYNCW U(3)
+
+#define SCTLR_TCF_SHIFT U(40)
+#define SCTLR_TCF_MASK ULL(3)
+
+/* Tag Check Faults in EL1 have no effect on the PE */
+#define SCTLR_TCF_NO_EFFECT U(0)
+/* Tag Check Faults in EL1 cause a synchronous exception */
+#define SCTLR_TCF_SYNC U(1)
+/* Tag Check Faults in EL1 are asynchronously accumulated */
+#define SCTLR_TCF_ASYNC U(2)
+/*
+ * Tag Check Faults in EL1 cause a synchronous exception on reads,
+ * and are asynchronously accumulated on writes
+ */
+#define SCTLR_TCF_SYNCR_ASYNCW U(3)
+
+#define SCTLR_ATA0_BIT (ULL(1) << 42)
+#define SCTLR_ATA_BIT (ULL(1) << 43)
#define SCTLR_DSSBS_BIT (ULL(1) << 44)
+#define SCTLR_TWEDEn_BIT (ULL(1) << 45)
+#define SCTLR_TWEDEL_SHIFT U(46)
+#define SCTLR_TWEDEL_MASK ULL(0xf)
+#define SCTLR_EnASR_BIT (ULL(1) << 54)
+#define SCTLR_EnAS0_BIT (ULL(1) << 55)
+#define SCTLR_EnALS_BIT (ULL(1) << 56)
+#define SCTLR_EPAN_BIT (ULL(1) << 57)
#define SCTLR_RESET_VAL SCTLR_EL3_RES1
-/* CPACR_El1 definitions */
+/* CPACR_EL1 definitions */
#define CPACR_EL1_FPEN(x) ((x) << 20)
#define CPACR_EL1_FP_TRAP_EL0 UL(0x1)
#define CPACR_EL1_FP_TRAP_ALL UL(0x2)