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[Qemu-devel] [PATCH 16/19] target/hppa: Convert halt/reset insns
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 16/19] target/hppa: Convert halt/reset insns |
Date: |
Thu, 7 Feb 2019 11:53:57 +0000 |
Signed-off-by: Richard Henderson <address@hidden>
---
target/hppa/translate.c | 49 ++++++++++++----------------------------
target/hppa/insns.decode | 5 ++++
2 files changed, 20 insertions(+), 34 deletions(-)
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 4ecd522e51..c73a7ab3db 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -2376,20 +2376,27 @@ static bool trans_rfi_r(DisasContext *ctx, arg_rfi_r *a)
return do_rfi(ctx, true);
}
-#ifndef CONFIG_USER_ONLY
-static bool gen_hlt(DisasContext *ctx, int reset)
+static bool trans_halt(DisasContext *ctx, arg_halt *a)
{
CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR);
+#ifndef CONFIG_USER_ONLY
nullify_over(ctx);
- if (reset) {
- gen_helper_reset(cpu_env);
- } else {
- gen_helper_halt(cpu_env);
- }
+ gen_helper_halt(cpu_env);
ctx->base.is_jmp = DISAS_NORETURN;
return nullify_end(ctx);
+#endif
+}
+
+static bool trans_reset(DisasContext *ctx, arg_reset *a)
+{
+ CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR);
+#ifndef CONFIG_USER_ONLY
+ nullify_over(ctx);
+ gen_helper_reset(cpu_env);
+ ctx->base.is_jmp = DISAS_NORETURN;
+ return nullify_end(ctx);
+#endif
}
-#endif /* !CONFIG_USER_ONLY */
static bool trans_nop_addrx(DisasContext *ctx, arg_ldst *a)
{
@@ -4134,32 +4141,6 @@ static void translate_one(DisasContext *ctx, uint32_t
insn)
case 0x2E:
translate_table(ctx, insn, table_fp_fused);
return;
-
- case 0x04: /* spopn */
- case 0x05: /* diag */
- case 0x0F: /* product specific */
- break;
-
- case 0x07: /* unassigned */
- case 0x15: /* unassigned */
- case 0x1D: /* unassigned */
- case 0x37: /* unassigned */
- break;
- case 0x3F:
-#ifndef CONFIG_USER_ONLY
- /* Unassigned, but use as system-halt. */
- if (insn == 0xfffdead0) {
- gen_hlt(ctx, 0); /* halt system */
- return;
- }
- if (insn == 0xfffdead1) {
- gen_hlt(ctx, 1); /* reset system */
- return;
- }
-#endif
- break;
- default:
- break;
}
gen_illegal(ctx);
}
diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode
index 25ac09d9d6..f564e54f1d 100644
--- a/target/hppa/insns.decode
+++ b/target/hppa/insns.decode
@@ -103,6 +103,11 @@ ssm 000000 .......... 000 01101011 t:5
i=%sm_imm
rfi 000000 ----- ----- --- 01100000 00000
rfi_r 000000 ----- ----- --- 01100101 00000
+# These are artificial instructions used by QEMU firmware.
+# They are allocated from the unassigned instruction space.
+halt 1111 1111 1111 1101 1110 1010 1101 0000
+reset 1111 1111 1111 1101 1110 1010 1101 0001
+
####
# Memory Management
####
--
2.17.2
- [Qemu-devel] [PATCH 02/19] target/hppa: Begin using scripts/decodetree.py, (continued)
- [Qemu-devel] [PATCH 02/19] target/hppa: Begin using scripts/decodetree.py, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 05/19] target/hppa: Unify specializations of OR, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 06/19] target/hppa: Convert memory management insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 07/19] target/hppa: Convert arithmetic/logical insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 09/19] target/hppa: Convert fp multiply-add, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 01/19] target/hppa: Use DisasContextBase.is_jmp, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 08/19] target/hppa: Convert indexed memory insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 11/19] target/hppa: Convert shift, extract, deposit insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 14/19] target/hppa: Convert offset memory insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 19/19] target/hppa: Merge translate_one into hppa_tr_translate_insn, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 16/19] target/hppa: Convert halt/reset insns,
Richard Henderson <=
- [Qemu-devel] [PATCH 15/19] target/hppa: Convert fp indexed memory insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 12/19] target/hppa: Convert direct and indirect branches, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 13/19] target/hppa: Convert arithmetic immediate insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 17/19] target/hppa: Convert fp fused multiply-add insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 18/19] target/hppa: Convert fp operate insns, Richard Henderson, 2019/02/07
- [Qemu-devel] [PATCH 10/19] target/hppa: Convert conditional branches, Richard Henderson, 2019/02/07
- Re: [Qemu-devel] [PATCH 00/19] target/hppa: Convert to decodetree, Sven Schnelle, 2019/02/11