diff mbox series

[v12,5/7,RISCV_PM] Support pointer masking for RISC-V for i/c/f/d/a types of instructions

Message ID 20210928190036.4114438-6-space.monkey.delivers@gmail.com (mailing list archive)
State New, archived
Headers show
Series RISC-V Pointer Masking implementatio | expand

Commit Message

Alexey Baturo Sept. 28, 2021, 7 p.m. UTC 
Signed-off-by: Alexey Baturo <space.monkey.delivers@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/insn_trans/trans_rva.c.inc |  3 +++
 target/riscv/insn_trans/trans_rvd.c.inc |  2 ++
 target/riscv/insn_trans/trans_rvf.c.inc |  2 ++
 target/riscv/insn_trans/trans_rvi.c.inc |  2 ++
 target/riscv/translate.c                | 10 ++++++++++
 5 files changed, 19 insertions(+)
diff mbox series

Patch

diff --git a/target/riscv/insn_trans/trans_rva.c.inc b/target/riscv/insn_trans/trans_rva.c.inc
index 6ea07d89b0..5bdc412191 100644
--- a/target/riscv/insn_trans/trans_rva.c.inc
+++ b/target/riscv/insn_trans/trans_rva.c.inc
@@ -25,6 +25,7 @@  static bool gen_lr(DisasContext *ctx, arg_atomic *a, MemOp mop)
     if (a->rl) {
         tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL);
     }
+    gen_pm_adjust_address(ctx, &src1, src1);
     tcg_gen_qemu_ld_tl(load_val, src1, ctx->mem_idx, mop);
     if (a->aq) {
         tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
@@ -44,6 +45,7 @@  static bool gen_sc(DisasContext *ctx, arg_atomic *a, MemOp mop)
     TCGLabel *l2 = gen_new_label();
 
     src1 = get_gpr(ctx, a->rs1, EXT_ZERO);
+    gen_pm_adjust_address(ctx, &src1, src1);
     tcg_gen_brcond_tl(TCG_COND_NE, load_res, src1, l1);
 
     /*
@@ -84,6 +86,7 @@  static bool gen_amo(DisasContext *ctx, arg_atomic *a,
     TCGv src1 = get_gpr(ctx, a->rs1, EXT_NONE);
     TCGv src2 = get_gpr(ctx, a->rs2, EXT_NONE);
 
+    gen_pm_adjust_address(ctx, &src1, src1);
     func(dest, src1, src2, ctx->mem_idx, mop);
 
     gen_set_gpr(ctx, a->rd, dest);
diff --git a/target/riscv/insn_trans/trans_rvd.c.inc b/target/riscv/insn_trans/trans_rvd.c.inc
index db9ae15755..40e73d9959 100644
--- a/target/riscv/insn_trans/trans_rvd.c.inc
+++ b/target/riscv/insn_trans/trans_rvd.c.inc
@@ -31,6 +31,7 @@  static bool trans_fld(DisasContext *ctx, arg_fld *a)
         tcg_gen_addi_tl(temp, addr, a->imm);
         addr = temp;
     }
+    gen_pm_adjust_address(ctx, &addr, addr);
 
     tcg_gen_qemu_ld_i64(cpu_fpr[a->rd], addr, ctx->mem_idx, MO_TEQ);
 
@@ -51,6 +52,7 @@  static bool trans_fsd(DisasContext *ctx, arg_fsd *a)
         tcg_gen_addi_tl(temp, addr, a->imm);
         addr = temp;
     }
+    gen_pm_adjust_address(ctx, &addr, addr);
 
     tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], addr, ctx->mem_idx, MO_TEQ);
 
diff --git a/target/riscv/insn_trans/trans_rvf.c.inc b/target/riscv/insn_trans/trans_rvf.c.inc
index bddbd418d9..945dc75fdc 100644
--- a/target/riscv/insn_trans/trans_rvf.c.inc
+++ b/target/riscv/insn_trans/trans_rvf.c.inc
@@ -37,6 +37,7 @@  static bool trans_flw(DisasContext *ctx, arg_flw *a)
         tcg_gen_addi_tl(temp, addr, a->imm);
         addr = temp;
     }
+    gen_pm_adjust_address(ctx, &addr, addr);
 
     dest = cpu_fpr[a->rd];
     tcg_gen_qemu_ld_i64(dest, addr, ctx->mem_idx, MO_TEUL);
@@ -59,6 +60,7 @@  static bool trans_fsw(DisasContext *ctx, arg_fsw *a)
         tcg_gen_addi_tl(temp, addr, a->imm);
         addr = temp;
     }
+    gen_pm_adjust_address(ctx, &addr, addr);
 
     tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], addr, ctx->mem_idx, MO_TEUL);
 
diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_trans/trans_rvi.c.inc
index 920ae0edb3..d4097b59f7 100644
--- a/target/riscv/insn_trans/trans_rvi.c.inc
+++ b/target/riscv/insn_trans/trans_rvi.c.inc
@@ -146,6 +146,7 @@  static bool gen_load(DisasContext *ctx, arg_lb *a, MemOp memop)
         tcg_gen_addi_tl(temp, addr, a->imm);
         addr = temp;
     }
+    gen_pm_adjust_address(ctx, &addr, addr);
 
     tcg_gen_qemu_ld_tl(dest, addr, ctx->mem_idx, memop);
     gen_set_gpr(ctx, a->rd, dest);
@@ -187,6 +188,7 @@  static bool gen_store(DisasContext *ctx, arg_sb *a, MemOp memop)
         tcg_gen_addi_tl(temp, addr, a->imm);
         addr = temp;
     }
+    gen_pm_adjust_address(ctx, &addr, addr);
 
     tcg_gen_qemu_st_tl(data, addr, ctx->mem_idx, memop);
     return true;
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index 74b33fa3c9..de4997a3e5 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -117,6 +117,16 @@  static void gen_nanbox_s(TCGv_i64 out, TCGv_i64 in)
     tcg_gen_ori_i64(out, in, MAKE_64BIT_MASK(32, 32));
 }
 
+/*
+ * Temp stub: generates address adjustment for PointerMasking
+ */
+static void gen_pm_adjust_address(DisasContext *s,
+                                  TCGv         *dst,
+                                  TCGv          src)
+{
+    tcg_gen_mov_tl(*dst, src);
+}
+
 /*
  * A narrow n-bit operation, where n < FLEN, checks that input operands
  * are correctly Nan-boxed, i.e., all upper FLEN - n bits are 1.