s390x/tcg: switch to new SIGP handling code

This effectively enables experimental SMP support. Floating interrupts are
still a mess, so allow it but print a big warning. There also seems
to be a problem with CPU hotplug (after the main loop started).

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170928203708.9376-27-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[CH: changed insn-data.def as pointed out by Richard]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>

1 files changed, 6 insertions, 36 deletions

diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c
index 0b93381188..0b3613ea5f 100644
--- a/target/s390x/misc_helper.c
+++ b/target/s390x/misc_helper.c
@@ -319,44 +319,14 @@ uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0,
 }
 
 uint32_t HELPER(sigp)(CPUS390XState *env, uint64_t order_code, uint32_t r1,
-                      uint64_t cpu_addr)
+                      uint32_t r3)
 {
-    int cc = SIGP_CC_ORDER_CODE_ACCEPTED;
+    int cc;
 
-    HELPER_LOG("%s: %016" PRIx64 " %08x %016" PRIx64 "\n",
-               __func__, order_code, r1, cpu_addr);
-
-    /* Remember: Use "R1 or R1 + 1, whichever is the odd-numbered register"
-       as parameter (input). Status (output) is always R1. */
-
-    switch (order_code & SIGP_ORDER_MASK) {
-    case SIGP_SET_ARCH:
-        /* switch arch */
-        break;
-    case SIGP_SENSE:
-        /* enumerate CPU status */
-        if (cpu_addr) {
-            /* XXX implement when SMP comes */
-            return 3;
-        }
-        env->regs[r1] &= 0xffffffff00000000ULL;
-        cc = 1;
-        break;
-#if !defined(CONFIG_USER_ONLY)
-    case SIGP_RESTART:
-        qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
-        cpu_loop_exit(CPU(s390_env_get_cpu(env)));
-        break;
-    case SIGP_STOP:
-        qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
-        cpu_loop_exit(CPU(s390_env_get_cpu(env)));
-        break;
-#endif
-    default:
-        /* unknown sigp */
-        fprintf(stderr, "XXX unknown sigp: 0x%" PRIx64 "\n", order_code);
-        cc = SIGP_CC_NOT_OPERATIONAL;
-    }
+    /* TODO: needed to inject interrupts  - push further down */
+    qemu_mutex_lock_iothread();
+    cc = handle_sigp(env, order_code & SIGP_ORDER_MASK, r1, r3);
+    qemu_mutex_unlock_iothread();
 
     return cc;
 }