[PATCH v2 15/20] target/arm: Add SCTLR.nAA to TBFLAG_A64

[Richard Henderson <richard.henderson@linaro.org>]

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/cpu.h               | 3 ++-
 target/arm/tcg/translate.h     | 2 ++
 target/arm/tcg/hflags.c        | 6 ++++++
 target/arm/tcg/translate-a64.c | 1 +
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 36ab66d0c3..23092572d7 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1247,7 +1247,7 @@ void pmu_init(ARMCPU *cpu);
 #define SCTLR_D       (1U << 5) /* up to v5; RAO in v6 */
 #define SCTLR_CP15BEN (1U << 5) /* v7 onward */
 #define SCTLR_L       (1U << 6) /* up to v5; RAO in v6 and v7; RAZ in v8 */
-#define SCTLR_nAA     (1U << 6) /* when v8.4-LSE is implemented */
+#define SCTLR_nAA     (1U << 6) /* when FEAT_LSE2 is implemented */
 #define SCTLR_B       (1U << 7) /* up to v6; RAZ in v7 */
 #define SCTLR_ITD     (1U << 7) /* v8 onward */
 #define SCTLR_S       (1U << 8) /* up to v6; RAZ in v7 */
@@ -3043,6 +3043,7 @@ FIELD(TBFLAG_A64, SVL, 24, 4)
 /* Indicates that SME Streaming mode is active, and SMCR_ELx.FA64 is not. */
 FIELD(TBFLAG_A64, SME_TRAP_NONSTREAMING, 28, 1)
 FIELD(TBFLAG_A64, FGT_ERET, 29, 1)
+FIELD(TBFLAG_A64, NAA, 30, 1)
 
 /*
  * Helpers for using the above.
diff --git a/target/arm/tcg/translate.h b/target/arm/tcg/translate.h
index 626cf07970..38086a23f4 100644
--- a/target/arm/tcg/translate.h
+++ b/target/arm/tcg/translate.h
@@ -137,6 +137,8 @@ typedef struct DisasContext {
     bool fgt_eret;
     /* True if fine-grained trap on SVC is enabled */
     bool fgt_svc;
+    /* True if FEAT_LSE2 SCTLR_ELx.nAA is set */
+    bool naa;
     /*
      * >= 0, a copy of PSTATE.BTYPE, which will be 0 without v8.5-BTI.
      *  < 0, set by the current instruction.
diff --git a/target/arm/tcg/hflags.c b/target/arm/tcg/hflags.c
index b2ccd77cff..616c5fa723 100644
--- a/target/arm/tcg/hflags.c
+++ b/target/arm/tcg/hflags.c
@@ -248,6 +248,12 @@ static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
         }
     }
 
+    if (cpu_isar_feature(aa64_lse2, env_archcpu(env))) {
+        if (sctlr & SCTLR_nAA) {
+            DP_TBFLAG_A64(flags, NAA, 1);
+        }
+    }
+
     /* Compute the condition for using AccType_UNPRIV for LDTR et al. */
     if (!(env->pstate & PSTATE_UAO)) {
         switch (mmu_idx) {
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 8301d6c8e2..bbcdf31728 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -14163,6 +14163,7 @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase,
     dc->pstate_sm = EX_TBFLAG_A64(tb_flags, PSTATE_SM);
     dc->pstate_za = EX_TBFLAG_A64(tb_flags, PSTATE_ZA);
     dc->sme_trap_nonstreaming = EX_TBFLAG_A64(tb_flags, SME_TRAP_NONSTREAMING);
+    dc->naa = EX_TBFLAG_A64(tb_flags, NAA);
     dc->vec_len = 0;
     dc->vec_stride = 0;
     dc->cp_regs = arm_cpu->cp_regs;
-- 
2.34.1