s390: Add channel I/O instructions.

Provide handlers for (most) channel I/O instructions.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

target-s390x/cpu.h

@@ -147,6 +147,9 @@ static inline void cpu_clone_regs(CPUS390XState *env, target_ulong newsp)
 }
 #endif
 
+/* distinguish between 24 bit and 31 bit addressing */
+#define HIGH_ORDER_BIT 0x80000000
+
 /* Interrupt Codes */
 /* Program Interrupts */
 #define PGM_OPERATION                   0x0001
@@ -331,6 +334,20 @@ void *s390_cpu_physical_memory_map(CPUS390XState *env, hwaddr addr, hwaddr *len,
                                    int is_write);
 void s390_cpu_physical_memory_unmap(CPUS390XState *env, void *addr, hwaddr len,
                                     int is_write);
+static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb)
+{
+    hwaddr addr = 0;
+    uint8_t reg;
+
+    reg = ipb >> 28;
+    if (reg > 0) {
+        addr = env->regs[reg];
+    }
+    addr += (ipb >> 16) & 0xfff;
+
+    return addr;
+}
+
 void s390x_tod_timer(void *opaque);
 void s390x_cpu_timer(void *opaque);
 
@@ -380,6 +397,89 @@ static inline unsigned s390_del_running_cpu(CPUS390XState *env)
 void cpu_lock(void);
 void cpu_unlock(void);
 
+typedef struct SubchDev SubchDev;
+
+static inline SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
+                                       uint16_t schid)
+{
+    return NULL;
+}
+static inline bool css_subch_visible(SubchDev *sch)
+{
+    return false;
+}
+static inline void css_conditional_io_interrupt(SubchDev *sch)
+{
+}
+static inline int css_do_stsch(SubchDev *sch, SCHIB *schib)
+{
+    return -ENODEV;
+}
+static inline bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid)
+{
+    return true;
+}
+static inline int css_do_msch(SubchDev *sch, SCHIB *schib)
+{
+    return -ENODEV;
+}
+static inline int css_do_xsch(SubchDev *sch)
+{
+    return -ENODEV;
+}
+static inline int css_do_csch(SubchDev *sch)
+{
+    return -ENODEV;
+}
+static inline int css_do_hsch(SubchDev *sch)
+{
+    return -ENODEV;
+}
+static inline int css_do_ssch(SubchDev *sch, ORB *orb)
+{
+    return -ENODEV;
+}
+static inline int css_do_tsch(SubchDev *sch, IRB *irb)
+{
+    return -ENODEV;
+}
+static inline int css_do_stcrw(CRW *crw)
+{
+    return 1;
+}
+static inline int css_do_tpi(uint64_t addr, int lowcore)
+{
+    return 0;
+}
+static inline int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid,
+                                       int rfmt, uint8_t l_chpid, void *buf)
+{
+    return 0;
+}
+static inline void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo)
+{
+}
+static inline int css_enable_mss(void)
+{
+    return -EINVAL;
+}
+static inline int css_enable_mcsse(void)
+{
+    return -EINVAL;
+}
+static inline int css_do_rsch(SubchDev *sch)
+{
+    return -ENODEV;
+}
+static inline int css_do_rchp(uint8_t cssid, uint8_t chpid)
+{
+    return -ENODEV;
+}
+static inline bool css_present(uint8_t cssid)
+{
+    return false;
+}
+
 static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
 {
     env->aregs[0] = newtls >> 32;

target-s390x/ioinst.h

@@ -204,4 +204,20 @@ typedef struct CRW {
 
 int ioinst_disassemble_sch_ident(uint32_t value, int *m, int *cssid, int *ssid,
                                  int *schid);
+int ioinst_handle_xsch(CPUS390XState *env, uint64_t reg1);
+int ioinst_handle_csch(CPUS390XState *env, uint64_t reg1);
+int ioinst_handle_hsch(CPUS390XState *env, uint64_t reg1);
+int ioinst_handle_msch(CPUS390XState *env, uint64_t reg1, uint32_t ipb);
+int ioinst_handle_ssch(CPUS390XState *env, uint64_t reg1, uint32_t ipb);
+int ioinst_handle_stcrw(CPUS390XState *env, uint32_t ipb);
+int ioinst_handle_stsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb);
+int ioinst_handle_tsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb);
+int ioinst_handle_chsc(CPUS390XState *env, uint32_t ipb);
+int ioinst_handle_tpi(CPUS390XState *env, uint32_t ipb);
+int ioinst_handle_schm(CPUS390XState *env, uint64_t reg1, uint64_t reg2,
+                       uint32_t ipb);
+int ioinst_handle_rsch(CPUS390XState *env, uint64_t reg1);
+int ioinst_handle_rchp(CPUS390XState *env, uint64_t reg1);
+int ioinst_handle_sal(CPUS390XState *env, uint64_t reg1);
+
 #endif

trace-events

@@ -1072,3 +1072,9 @@ xics_ics_eoi(int nr) "ics_eoi: irq %#x"
 hbitmap_iter_skip_words(const void *hb, void *hbi, uint64_t pos, unsigned long cur) "hb %p hbi %p pos %"PRId64" cur 0x%lx"
 hbitmap_reset(void *hb, uint64_t start, uint64_t count, uint64_t sbit, uint64_t ebit) "hb %p items %"PRIu64",%"PRIu64" bits %"PRIu64"..%"PRIu64
 hbitmap_set(void *hb, uint64_t start, uint64_t count, uint64_t sbit, uint64_t ebit) "hb %p items %"PRIu64",%"PRIu64" bits %"PRIu64"..%"PRIu64
+
+# target-s390x/ioinst.c
+ioinst(const char *insn) "IOINST: %s"
+ioinst_sch_id(const char *insn, int cssid, int ssid, int schid) "IOINST: %s (%x.%x.%04x)"
+ioinst_chp_id(const char *insn, int cssid, int chpid) "IOINST: %s (%x.%02x)"
+ioinst_chsc_cmd(uint16_t cmd, uint16_t len) "IOINST: chsc command %04x, len %04x"