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authorRichard Henderson <rth@twiddle.net>2011-04-27 09:22:52 -0700
committerRichard Henderson <rth@twiddle.net>2011-10-08 08:49:09 -0700
commit034ebc2753e7d16879a91e4407c4e0706f63604e (patch)
tree2295fa229575afd9aeb071e29db3354f47f62cce /target-alpha
parentbc24270e6471fb916a3816de9e63c31474392739 (diff)
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target-alpha: Implement HALT IPR.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-alpha')
-rw-r--r--target-alpha/helper.h1
-rw-r--r--target-alpha/op_helper.c10
-rw-r--r--target-alpha/translate.c5
3 files changed, 16 insertions, 0 deletions
diff --git a/target-alpha/helper.h b/target-alpha/helper.h
index 2dec57e..c352c24 100644
--- a/target-alpha/helper.h
+++ b/target-alpha/helper.h
@@ -113,6 +113,7 @@ DEF_HELPER_2(stq_c_phys, i64, i64, i64)
DEF_HELPER_FLAGS_0(tbia, TCG_CALL_CONST, void)
DEF_HELPER_FLAGS_1(tbis, TCG_CALL_CONST, void, i64)
+DEF_HELPER_1(halt, void, i64);
#endif
#include "def-helper.h"
diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c
index d8945dc..1896ab8 100644
--- a/target-alpha/op_helper.c
+++ b/target-alpha/op_helper.c
@@ -22,6 +22,7 @@
#include "host-utils.h"
#include "softfloat.h"
#include "helper.h"
+#include "sysemu.h"
#include "qemu-timer.h"
#define FP_STATUS (env->fp_status)
@@ -1218,6 +1219,15 @@ void helper_tbis(uint64_t p)
{
tlb_flush_page(env, p);
}
+
+void helper_halt(uint64_t restart)
+{
+ if (restart) {
+ qemu_system_reset_request();
+ } else {
+ qemu_system_shutdown_request();
+ }
+}
#endif
/*****************************************************************************/
diff --git a/target-alpha/translate.c b/target-alpha/translate.c
index c1ef465..0acbd68 100644
--- a/target-alpha/translate.c
+++ b/target-alpha/translate.c
@@ -1645,6 +1645,11 @@ static ExitStatus gen_mtpr(DisasContext *ctx, int rb, int regno)
tcg_gen_st32_i64(tmp, cpu_env, offsetof(CPUState, halted));
return gen_excp(ctx, EXCP_HLT, 0);
+ case 252:
+ /* HALT */
+ gen_helper_halt(tmp);
+ return EXIT_PC_STALE;
+
default:
/* The basic registers are data only, and unknown registers
are read-zero, write-ignore. */