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s390x: Move reset normal to shared reset handler 

Let's start moving the cpu reset functions into a single function with
a switch/case, so we can later use fallthroughs and share more code
between resets.

This patch introduces the reset function by renaming cpu_reset().

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20191127175046.4911-3-frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Janosch Frank 2019-11-27 12:50:42 -05:00 committed by Cornelia Huck
parent ec9227339f
commit eac4f82791
4 changed files with 20 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
target/s390x/cpu-qom.h
View File

@ -34,6 +34,10 @@
typedef struct S390CPUModel S390CPUModel;
typedef struct S390CPUDef S390CPUDef;
typedef enum cpu_reset_type {
S390_CPU_RESET_NORMAL,
} cpu_reset_type;
/**
* S390CPUClass:
* @parent_realize: The parent class' realize handler.
@ -57,7 +61,7 @@ typedef struct S390CPUClass {
DeviceRealize parent_realize;
void (*parent_reset)(CPUState *cpu);
void (*load_normal)(CPUState *cpu);
void (*cpu_reset)(CPUState *cpu);
void (*reset)(CPUState *cpu, cpu_reset_type type);
void (*initial_cpu_reset)(CPUState *cpu);
} S390CPUClass;

19
target/s390x/cpu.c
View File

@ -82,18 +82,25 @@ static void s390_cpu_load_normal(CPUState *s)
}
#endif
/* S390CPUClass::cpu_reset() */
static void s390_cpu_reset(CPUState *s)
/* S390CPUClass::reset() */
static void s390_cpu_reset(CPUState *s, cpu_reset_type type)
{
S390CPU *cpu = S390_CPU(s);
S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
CPUS390XState *env = &cpu->env;
env->pfault_token = -1UL;
env->bpbc = false;
scc->parent_reset(s);
cpu->env.sigp_order = 0;
s390_cpu_set_state(S390_CPU_STATE_STOPPED, cpu);
switch (type) {
case S390_CPU_RESET_NORMAL:
env->pfault_token = -1UL;
env->bpbc = false;
break;
default:
g_assert_not_reached();
}
}
/* S390CPUClass::initial_reset() */
@ -102,7 +109,7 @@ static void s390_cpu_initial_reset(CPUState *s)
S390CPU *cpu = S390_CPU(s);
CPUS390XState *env = &cpu->env;
s390_cpu_reset(s);
s390_cpu_reset(s, S390_CPU_RESET_NORMAL);
/* initial reset does not clear everything! */
memset(&env->start_initial_reset_fields, 0,
offsetof(CPUS390XState, end_reset_fields) -
@ -473,7 +480,7 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data)
#if !defined(CONFIG_USER_ONLY)
scc->load_normal = s390_cpu_load_normal;
#endif
scc->cpu_reset = s390_cpu_reset;
scc->reset = s390_cpu_reset;
scc->initial_cpu_reset = s390_cpu_initial_reset;
cc->reset = s390_cpu_full_reset;
cc->class_by_name = s390_cpu_class_by_name,

2
target/s390x/cpu.h
View File

@ -741,7 +741,7 @@ static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->cpu_reset(cs);
scc->reset(cs, S390_CPU_RESET_NORMAL);
}
static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg)

2
target/s390x/sigp.c
View File

@ -266,7 +266,7 @@ static void sigp_cpu_reset(CPUState *cs, run_on_cpu_data arg)
SigpInfo *si = arg.host_ptr;
cpu_synchronize_state(cs);
scc->cpu_reset(cs);
scc->reset(cs, S390_CPU_RESET_NORMAL);
cpu_synchronize_post_reset(cs);
si->cc = SIGP_CC_ORDER_CODE_ACCEPTED;
}