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target-alpha: Implement HALT IPR.

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Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2011-04-27 09:22:52 -07:00
parent bc24270e64
commit 034ebc2753
3 changed files with 16 additions and 0 deletions
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1
target-alpha/helper.h
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@ -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_0(tbia, TCG_CALL_CONST, void)
DEF_HELPER_FLAGS_1(tbis, TCG_CALL_CONST, void, i64) DEF_HELPER_FLAGS_1(tbis, TCG_CALL_CONST, void, i64)
DEF_HELPER_1(halt, void, i64);
#endif #endif
#include "def-helper.h" #include "def-helper.h"

10
target-alpha/op_helper.c
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@ -22,6 +22,7 @@
#include "host-utils.h" #include "host-utils.h"
#include "softfloat.h" #include "softfloat.h"
#include "helper.h" #include "helper.h"
#include "sysemu.h"
#include "qemu-timer.h" #include "qemu-timer.h"
#define FP_STATUS (env->fp_status) #define FP_STATUS (env->fp_status)
@ -1218,6 +1219,15 @@ void helper_tbis(uint64_t p)
{ {
tlb_flush_page(env, p); tlb_flush_page(env, p);
} }
void helper_halt(uint64_t restart)
{
if (restart) {
qemu_system_reset_request();
} else {
qemu_system_shutdown_request();
}
}
#endif #endif
/*****************************************************************************/ /*****************************************************************************/

5
target-alpha/translate.c
View File

@ -1645,6 +1645,11 @@ static ExitStatus gen_mtpr(DisasContext *ctx, int rb, int regno)
tcg_gen_st32_i64(tmp, cpu_env, offsetof(CPUState, halted)); tcg_gen_st32_i64(tmp, cpu_env, offsetof(CPUState, halted));
return gen_excp(ctx, EXCP_HLT, 0); return gen_excp(ctx, EXCP_HLT, 0);
case 252:
/* HALT */
gen_helper_halt(tmp);
return EXIT_PC_STALE;
default: default:
/* The basic registers are data only, and unknown registers /* The basic registers are data only, and unknown registers
are read-zero, write-ignore. */ are read-zero, write-ignore. */