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[PATCH v5 08/22] target/arm: Implement the GMI instruction
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From: |
Richard Henderson |
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Subject: |
[PATCH v5 08/22] target/arm: Implement the GMI instruction |
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Date: |
Fri, 11 Oct 2019 09:47:30 -0400 |
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
target/arm/helper-a64.h | 1 +
target/arm/mte_helper.c | 6 ++++++
target/arm/translate-a64.c | 6 ++++++
3 files changed, 13 insertions(+)
diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h
index 268c114b79..31f848ca03 100644
--- a/target/arm/helper-a64.h
+++ b/target/arm/helper-a64.h
@@ -109,3 +109,4 @@ DEF_HELPER_FLAGS_3(mte_check3, TCG_CALL_NO_WG, i64, env,
i64, i32)
DEF_HELPER_FLAGS_3(irg, TCG_CALL_NO_RWG, i64, env, i64, i64)
DEF_HELPER_FLAGS_4(addg, TCG_CALL_NO_RWG_SE, i64, env, i64, i32, i32)
DEF_HELPER_FLAGS_4(subg, TCG_CALL_NO_RWG_SE, i64, env, i64, i32, i32)
+DEF_HELPER_FLAGS_2(gmi, TCG_CALL_NO_RWG_SE, i64, i64, i64)
diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c
index c3edc51bba..251dfff1e1 100644
--- a/target/arm/mte_helper.c
+++ b/target/arm/mte_helper.c
@@ -254,3 +254,9 @@ uint64_t HELPER(subg)(CPUARMState *env, uint64_t ptr,
return address_with_allocation_tag(ptr - offset, rtag);
}
+
+uint64_t HELPER(gmi)(uint64_t ptr, uint64_t mask)
+{
+ int tag = allocation_tag_from_addr(ptr);
+ return mask | (1ULL << tag);
+}
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 26aee0c1c9..4184d65d97 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -5188,6 +5188,12 @@ static void disas_data_proc_2src(DisasContext *s,
uint32_t insn)
gen_helper_irg(cpu_reg_sp(s, rd), cpu_env,
cpu_reg_sp(s, rn), cpu_reg(s, rm));
break;
+ case 5: /* GMI */
+ if (sf == 0 || !dc_isar_feature(aa64_mte_insn_reg, s)) {
+ goto do_unallocated;
+ }
+ gen_helper_gmi(cpu_reg(s, rd), cpu_reg_sp(s, rn), cpu_reg(s, rm));
+ break;
case 8: /* LSLV */
handle_shift_reg(s, A64_SHIFT_TYPE_LSL, sf, rm, rn, rd);
break;
--
2.17.1
- [PATCH v5 00/22] target/arm: Implement ARMv8.5-MemTag, system mode, Richard Henderson, 2019/10/11
- [PATCH v5 01/22] target/arm: Add MTE_ACTIVE to tb_flags, Richard Henderson, 2019/10/11
- [PATCH v5 02/22] target/arm: Add regime_has_2_ranges, Richard Henderson, 2019/10/11
- [PATCH v5 03/22] target/arm: Add MTE system registers, Richard Henderson, 2019/10/11
- [PATCH v5 04/22] target/arm: Add helper_mte_check{1,2,3}, Richard Henderson, 2019/10/11
- [PATCH v5 05/22] target/arm: Suppress tag check for sp+offset, Richard Henderson, 2019/10/11
- [PATCH v5 06/22] target/arm: Implement the IRG instruction, Richard Henderson, 2019/10/11
- [PATCH v5 07/22] target/arm: Implement ADDG, SUBG instructions, Richard Henderson, 2019/10/11
- [PATCH v5 08/22] target/arm: Implement the GMI instruction,
Richard Henderson <=
- [PATCH v5 09/22] target/arm: Implement the SUBP instruction, Richard Henderson, 2019/10/11
- [PATCH v5 10/22] target/arm: Define arm_cpu_do_unaligned_access for CONFIG_USER_ONLY, Richard Henderson, 2019/10/11
- [PATCH v5 12/22] target/arm: Implement the STGP instruction, Richard Henderson, 2019/10/11
- [PATCH v5 11/22] target/arm: Implement LDG, STG, ST2G instructions, Richard Henderson, 2019/10/11
- [PATCH v5 13/22] target/arm: Implement the LDGM and STGM instructions, Richard Henderson, 2019/10/11
- [PATCH v5 14/22] target/arm: Implement the access tag cache flushes, Richard Henderson, 2019/10/11
- [PATCH v5 16/22] target/arm: Implement data cache set allocation tags, Richard Henderson, 2019/10/11
- [PATCH v5 15/22] target/arm: Clean address for DC ZVA, Richard Henderson, 2019/10/11
- [PATCH v5 17/22] target/arm: Set PSTATE.TCO on exception entry, Richard Henderson, 2019/10/11
- [PATCH v5 18/22] target/arm: Enable MTE, Richard Henderson, 2019/10/11