@@ -192,6 +192,29 @@ static void cpu_reset_all(void)
}
}
+static void cpu_full_reset_all(void)
+{
+ CPUState *cpu;
+
+ CPU_FOREACH(cpu) {
+ cpu_reset(cpu);
+ }
+}
+
+static int modified_clear_reset(S390CPU *cpu)
+{
+ S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
+
+ pause_all_vcpus();
+ cpu_synchronize_all_states();
+ cpu_full_reset_all();
+ io_subsystem_reset();
+ scc->load_normal(CPU(cpu));
+ cpu_synchronize_all_post_reset();
+ resume_all_vcpus();
+ return 0;
+}
+
static int load_normal_reset(S390CPU *cpu)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
@@ -225,6 +248,9 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3)
}
switch (subcode) {
+ case 0:
+ modified_clear_reset(s390_env_get_cpu(env));
+ break;
case 1:
load_normal_reset(s390_env_get_cpu(env));
break;
This patch implements subcode 0 of diag 308. This is necessary for kexec (without kdump). The main difference to subcode 1 is that all CPUs get a full reset, instead of the architectured CPU reset (which leaves all registers untouched). Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> --- target-s390x/misc_helper.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)