target/arm: Remove TBFLAG_ANY.DEBUG_TARGET_EL

We no longer need this value during translation, as it is now handled within the helpers. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220609202901.1177572-15-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
qemu · Jun 10, 2022 · 8480e93 · 8480e93
1 parent f0d7c20
commit 8480e93
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Showing 5 changed files with 4 additions and 18 deletions.
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
@@ -3104,11 +3104,9 @@ FIELD(TBFLAG_ANY, BE_DATA, 3, 1)
 FIELD(TBFLAG_ANY, MMUIDX, 4, 4)
 /* Target EL if we take a floating-point-disabled exception */
 FIELD(TBFLAG_ANY, FPEXC_EL, 8, 2)
-/* For A-profile only, target EL for debug exceptions.  */
-FIELD(TBFLAG_ANY, DEBUG_TARGET_EL, 10, 2)
 /* Memory operations require alignment: SCTLR_ELx.A or CCR.UNALIGN_TRP */
-FIELD(TBFLAG_ANY, ALIGN_MEM, 12, 1)
-FIELD(TBFLAG_ANY, PSTATE__IL, 13, 1)
+FIELD(TBFLAG_ANY, ALIGN_MEM, 10, 1)
+FIELD(TBFLAG_ANY, PSTATE__IL, 11, 1)
 
 /*
  * Bit usage when in AArch32 state, both A- and M-profile.

diff --git a/target/arm/helper.c b/target/arm/helper.c
@@ -11102,18 +11102,10 @@ static CPUARMTBFlags rebuild_hflags_m32(CPUARMState *env, int fp_el,
     return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags);
 }
 
-static CPUARMTBFlags rebuild_hflags_aprofile(CPUARMState *env)
-{
-    CPUARMTBFlags flags = {};
-
-    DP_TBFLAG_ANY(flags, DEBUG_TARGET_EL, arm_debug_target_el(env));
-    return flags;
-}
-
 static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el,
                                         ARMMMUIdx mmu_idx)
 {
-    CPUARMTBFlags flags = rebuild_hflags_aprofile(env);
+    CPUARMTBFlags flags = {};
     int el = arm_current_el(env);
 
     if (arm_sctlr(env, el) & SCTLR_A) {
@@ -11139,7 +11131,7 @@ static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el,
 static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
                                         ARMMMUIdx mmu_idx)
 {
-    CPUARMTBFlags flags = rebuild_hflags_aprofile(env);
+    CPUARMTBFlags flags = {};
     ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx);
     uint64_t tcr = regime_tcr(env, mmu_idx)->raw_tcr;
     uint64_t sctlr;

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
@@ -14645,7 +14645,6 @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase,
     dc->ss_active = EX_TBFLAG_ANY(tb_flags, SS_ACTIVE);
     dc->pstate_ss = EX_TBFLAG_ANY(tb_flags, PSTATE__SS);
     dc->is_ldex = false;
-    dc->debug_target_el = EX_TBFLAG_ANY(tb_flags, DEBUG_TARGET_EL);
 
     /* Bound the number of insns to execute to those left on the page.  */
     bound = -(dc->base.pc_first | TARGET_PAGE_MASK) / 4;

diff --git a/target/arm/translate.c b/target/arm/translate.c
@@ -9350,7 +9350,6 @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
         dc->v7m_lspact = EX_TBFLAG_M32(tb_flags, LSPACT);
         dc->mve_no_pred = EX_TBFLAG_M32(tb_flags, MVE_NO_PRED);
     } else {
-        dc->debug_target_el = EX_TBFLAG_ANY(tb_flags, DEBUG_TARGET_EL);
         dc->sctlr_b = EX_TBFLAG_A32(tb_flags, SCTLR__B);
         dc->hstr_active = EX_TBFLAG_A32(tb_flags, HSTR_ACTIVE);
         dc->ns = EX_TBFLAG_A32(tb_flags, NS);

diff --git a/target/arm/translate.h b/target/arm/translate.h
@@ -59,8 +59,6 @@ typedef struct DisasContext {
      */
     uint32_t svc_imm;
     int current_el;
-    /* Debug target exception level for single-step exceptions */
-    int debug_target_el;
     GHashTable *cp_regs;
     uint64_t features; /* CPU features bits */
     bool aarch64;