This allows the guest program to know its cpu id.
Co-developed-by: Frederic Konrad <konrad.frede...@yahoo.fr>
Signed-off-by: Clément Chigot <chi...@adacore.com>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
target/sparc/helper.c | 16 ++++++++++++++++
target/sparc/helper.h | 1 +
target/sparc/translate.c | 13 +++----------
3 files changed, 20 insertions(+), 10 deletions(-)
diff --git a/target/sparc/helper.c b/target/sparc/helper.c
index bd10b60e4b..2247e243b5 100644
--- a/target/sparc/helper.c
+++ b/target/sparc/helper.c
@@ -212,4 +212,20 @@ void helper_power_down(CPUSPARCState *env)
env->npc = env->pc + 4;
cpu_loop_exit(cs);
}
+
+target_ulong helper_rdasr17(CPUSPARCState *env)
+{
+ CPUState *cs = env_cpu(env);
+ target_ulong val;
+
+ /*
+ * TODO: There are many more fields to be filled,
+ * some of which are writable.
+ */
+ val = env->def.nwindows - 1; /* [4:0] NWIN */
+ val |= 1 << 8; /* [8] V8 */
+ val |= (cs->cpu_index) << 28; /* [31:28] INDEX */
+
+ return val;
+}
#endif
diff --git a/target/sparc/helper.h b/target/sparc/helper.h
index 55eff66283..fc818b8678 100644
--- a/target/sparc/helper.h
+++ b/target/sparc/helper.h
@@ -2,6 +2,7 @@
DEF_HELPER_1(rett, void, env)
DEF_HELPER_2(wrpsr, void, env, tl)
DEF_HELPER_1(rdpsr, tl, env)
+DEF_HELPER_1(rdasr17, tl, env)
DEF_HELPER_1(power_down, void, env)
#else
DEF_HELPER_FLAGS_2(wrpil, TCG_CALL_NO_RWG, void, env, tl)
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 9387299559..1cabda9565 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -37,6 +37,7 @@
#ifdef TARGET_SPARC64
# define gen_helper_rdpsr(D, E) qemu_build_not_reached()
+# define gen_helper_rdasr17(D, E) qemu_build_not_reached()
# define gen_helper_rett(E) qemu_build_not_reached()
# define gen_helper_power_down(E) qemu_build_not_reached()
# define gen_helper_wrpsr(E, S) qemu_build_not_reached()
@@ -2681,16 +2682,8 @@ static bool trans_RDY(DisasContext *dc, arg_RDY *a)
static TCGv do_rd_leon3_config(DisasContext *dc, TCGv dst)
{
- uint32_t val;
-
- /*
- * TODO: There are many more fields to be filled,
- * some of which are writable.
- */
- val = dc->def->nwindows - 1; /* [4:0] NWIN */
- val |= 1 << 8; /* [8] V8 */
-
- return tcg_constant_tl(val);
+ gen_helper_rdasr17(dst, tcg_env);
+ return dst;
}
TRANS(RDASR17, ASR17, do_rd_special, true, a->rd, do_rd_leon3_config)
--
2.25.1
