Merge remote-tracking branch 'remotes/mcayland/tags/qemu-sparc-20210505' into staging

qemu-sparc queue

# gpg: Signature made Wed 05 May 2021 08:29:13 BST
# gpg:                using RSA key CC621AB98E82200D915CC9C45BC2C56FAE0F321F
# gpg:                issuer "mark.cave-ayland@ilande.co.uk"
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" [full]
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* remotes/mcayland/tags/qemu-sparc-20210505:
  hw/sparc*: Move cpu_check_irqs() to target/sparc/
  hw/sparc64: Fix code style for checkpatch.pl
  hw/sparc64: Remove unused "hw/char/serial.h" header
  hw/sparc: Allow building without the leon3 machine
  hw/sparc/sun4m: Move each sun4m_hwdef definition in its class_init
  hw/sparc/sun4m: Fix code style for checkpatch.pl
  hw/sparc/sun4m: Register machine types in sun4m_machine_types[]
  hw/sparc/sun4m: Factor out sun4m_machine_class_init()
  hw/sparc/sun4m: Introduce Sun4mMachineClass
  hw/sparc/sun4m: Have sun4m machines inherit new TYPE_SUN4M_MACHINE

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

5 files changed, 224 insertions, 375 deletions

diff --git a/hw/sparc/leon3.c b/hw/sparc/leon3.c
index eb5d2a6792..7b4dec1721 100644
--- a/hw/sparc/leon3.c
+++ b/hw/sparc/leon3.c
@@ -136,7 +136,36 @@ static void main_cpu_reset(void *opaque)
     env->regbase[6] = s->sp;
 }
 
-void leon3_irq_ack(void *irq_manager, int intno)
+static void leon3_cache_control_int(CPUSPARCState *env)
+{
+    uint32_t state = 0;
+
+    if (env->cache_control & CACHE_CTRL_IF) {
+        /* Instruction cache state */
+        state = env->cache_control & CACHE_STATE_MASK;
+        if (state == CACHE_ENABLED) {
+            state = CACHE_FROZEN;
+            trace_int_helper_icache_freeze();
+        }
+
+        env->cache_control &= ~CACHE_STATE_MASK;
+        env->cache_control |= state;
+    }
+
+    if (env->cache_control & CACHE_CTRL_DF) {
+        /* Data cache state */
+        state = (env->cache_control >> 2) & CACHE_STATE_MASK;
+        if (state == CACHE_ENABLED) {
+            state = CACHE_FROZEN;
+            trace_int_helper_dcache_freeze();
+        }
+
+        env->cache_control &= ~(CACHE_STATE_MASK << 2);
+        env->cache_control |= (state << 2);
+    }
+}
+
+static void leon3_irq_ack(void *irq_manager, int intno)
 {
     grlib_irqmp_ack((DeviceState *)irq_manager, intno);
 }
@@ -180,6 +209,12 @@ static void leon3_set_pil_in(void *opaque, int n, int level)
     }
 }
 
+static void leon3_irq_manager(CPUSPARCState *env, void *irq_manager, int intno)
+{
+    leon3_irq_ack(irq_manager, intno);
+    leon3_cache_control_int(env);
+}
+
 static void leon3_generic_hw_init(MachineState *machine)
 {
     ram_addr_t ram_size = machine->ram_size;
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index 1a00816d9a..42e139849e 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -107,6 +107,17 @@ struct sun4m_hwdef {
     uint8_t nvram_machine_id;
 };
 
+struct Sun4mMachineClass {
+    /*< private >*/
+    MachineClass parent_obj;
+    /*< public >*/
+    const struct sun4m_hwdef *hwdef;
+};
+typedef struct Sun4mMachineClass Sun4mMachineClass;
+
+#define TYPE_SUN4M_MACHINE MACHINE_TYPE_NAME("sun4m-common")
+DECLARE_CLASS_CHECKERS(Sun4mMachineClass, SUN4M_MACHINE, TYPE_SUN4M_MACHINE)
+
 const char *fw_cfg_arch_key_name(uint16_t key)
 {
     static const struct {
@@ -159,38 +170,6 @@ static void nvram_init(Nvram *nvram, uint8_t *macaddr,
     }
 }
 
-void cpu_check_irqs(CPUSPARCState *env)
-{
-    CPUState *cs;
-
-    /* We should be holding the BQL before we mess with IRQs */
-    g_assert(qemu_mutex_iothread_locked());
-
-    if (env->pil_in && (env->interrupt_index == 0 ||
-                        (env->interrupt_index & ~15) == TT_EXTINT)) {
-        unsigned int i;
-
-        for (i = 15; i > 0; i--) {
-            if (env->pil_in & (1 << i)) {
-                int old_interrupt = env->interrupt_index;
-
-                env->interrupt_index = TT_EXTINT | i;
-                if (old_interrupt != env->interrupt_index) {
-                    cs = env_cpu(env);
-                    trace_sun4m_cpu_interrupt(i);
-                    cpu_interrupt(cs, CPU_INTERRUPT_HARD);
-                }
-                break;
-            }
-        }
-    } else if (!env->pil_in && (env->interrupt_index & ~15) == TT_EXTINT) {
-        cs = env_cpu(env);
-        trace_sun4m_cpu_reset_interrupt(env->interrupt_index & 15);
-        env->interrupt_index = 0;
-        cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
-    }
-}
-
 static void cpu_kick_irq(SPARCCPU *cpu)
 {
     CPUSPARCState *env = &cpu->env;
@@ -837,9 +816,9 @@ static void dummy_fdc_tc(void *opaque, int irq, int level)
 {
 }
 
-static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
-                          MachineState *machine)
+static void sun4m_hw_init(MachineState *machine)
 {
+    const struct sun4m_hwdef *hwdef = SUN4M_MACHINE_GET_CLASS(machine)->hwdef;
     DeviceState *slavio_intctl;
     unsigned int i;
     Nvram *nvram;
@@ -1127,9 +1106,22 @@ enum {
     ss600mp_id,
 };
 
-static const struct sun4m_hwdef sun4m_hwdefs[] = {
-    /* SS-5 */
-    {
+static void sun4m_machine_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->init = sun4m_hw_init;
+    mc->block_default_type = IF_SCSI;
+    mc->default_boot_order = "c";
+    mc->default_display = "tcx";
+    mc->default_ram_id = "sun4m.ram";
+}
+
+static void ss5_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef ss5_hwdef = {
         .iommu_base   = 0x10000000,
         .iommu_pad_base = 0x10004000,
         .iommu_pad_len  = 0x0fffb000,
@@ -1154,9 +1146,19 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .machine_id = ss5_id,
         .iommu_version = 0x05000000,
         .max_mem = 0x10000000,
-    },
-    /* SS-10 */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCstation 5";
+    mc->is_default = true;
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
+    smc->hwdef = &ss5_hwdef;
+}
+
+static void ss10_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef ss10_hwdef = {
         .iommu_base   = 0xfe0000000ULL,
         .tcx_base     = 0xe20000000ULL,
         .slavio_base  = 0xff0000000ULL,
@@ -1170,18 +1172,28 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .dma_base     = 0xef0400000ULL,
         .esp_base     = 0xef0800000ULL,
         .le_base      = 0xef0c00000ULL,
-        .apc_base     = 0xefa000000ULL, // XXX should not exist
+        .apc_base     = 0xefa000000ULL, /* XXX should not exist */
         .aux1_base    = 0xff1800000ULL,
         .aux2_base    = 0xff1a01000ULL,
         .ecc_base     = 0xf00000000ULL,
-        .ecc_version  = 0x10000000, // version 0, implementation 1
+        .ecc_version  = 0x10000000, /* version 0, implementation 1 */
         .nvram_machine_id = 0x72,
         .machine_id = ss10_id,
         .iommu_version = 0x03000000,
         .max_mem = 0xf00000000ULL,
-    },
-    /* SS-600MP */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCstation 10";
+    mc->max_cpus = 4;
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-SuperSparc-II");
+    smc->hwdef = &ss10_hwdef;
+}
+
+static void ss600mp_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef ss600mp_hwdef = {
         .iommu_base   = 0xfe0000000ULL,
         .tcx_base     = 0xe20000000ULL,
         .slavio_base  = 0xff0000000ULL,
@@ -1193,18 +1205,28 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .dma_base     = 0xef0081000ULL,
         .esp_base     = 0xef0080000ULL,
         .le_base      = 0xef0060000ULL,
-        .apc_base     = 0xefa000000ULL, // XXX should not exist
+        .apc_base     = 0xefa000000ULL, /* XXX should not exist */
         .aux1_base    = 0xff1800000ULL,
-        .aux2_base    = 0xff1a01000ULL, // XXX should not exist
+        .aux2_base    = 0xff1a01000ULL, /* XXX should not exist */
         .ecc_base     = 0xf00000000ULL,
-        .ecc_version  = 0x00000000, // version 0, implementation 0
+        .ecc_version  = 0x00000000, /* version 0, implementation 0 */
         .nvram_machine_id = 0x71,
         .machine_id = ss600mp_id,
         .iommu_version = 0x01000000,
         .max_mem = 0xf00000000ULL,
-    },
-    /* SS-20 */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCserver 600MP";
+    mc->max_cpus = 4;
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-SuperSparc-II");
+    smc->hwdef = &ss600mp_hwdef;
+}
+
+static void ss20_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef ss20_hwdef = {
         .iommu_base   = 0xfe0000000ULL,
         .tcx_base     = 0xe20000000ULL,
         .slavio_base  = 0xff0000000ULL,
@@ -1219,7 +1241,7 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .esp_base     = 0xef0800000ULL,
         .le_base      = 0xef0c00000ULL,
         .bpp_base     = 0xef4800000ULL,
-        .apc_base     = 0xefa000000ULL, // XXX should not exist
+        .apc_base     = 0xefa000000ULL, /* XXX should not exist */
         .aux1_base    = 0xff1800000ULL,
         .aux2_base    = 0xff1a01000ULL,
         .dbri_base    = 0xee0000000ULL,
@@ -1238,14 +1260,24 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
             }
         },
         .ecc_base     = 0xf00000000ULL,
-        .ecc_version  = 0x20000000, // version 0, implementation 2
+        .ecc_version  = 0x20000000, /* version 0, implementation 2 */
         .nvram_machine_id = 0x72,
         .machine_id = ss20_id,
         .iommu_version = 0x13000000,
         .max_mem = 0xf00000000ULL,
-    },
-    /* Voyager */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCstation 20";
+    mc->max_cpus = 4;
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-SuperSparc-II");
+    smc->hwdef = &ss20_hwdef;
+}
+
+static void voyager_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef voyager_hwdef = {
         .iommu_base   = 0x10000000,
         .tcx_base     = 0x50000000,
         .slavio_base  = 0x70000000,
@@ -1259,16 +1291,25 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .dma_base     = 0x78400000,
         .esp_base     = 0x78800000,
         .le_base      = 0x78c00000,
-        .apc_base     = 0x71300000, // pmc
+        .apc_base     = 0x71300000, /* pmc */
         .aux1_base    = 0x71900000,
         .aux2_base    = 0x71910000,
         .nvram_machine_id = 0x80,
         .machine_id = vger_id,
         .iommu_version = 0x05000000,
         .max_mem = 0x10000000,
-    },
-    /* LX */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCstation Voyager";
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
+    smc->hwdef = &voyager_hwdef;
+}
+
+static void ss_lx_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef ss_lx_hwdef = {
         .iommu_base   = 0x10000000,
         .iommu_pad_base = 0x10004000,
         .iommu_pad_len  = 0x0fffb000,
@@ -1290,9 +1331,18 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .machine_id = lx_id,
         .iommu_version = 0x04000000,
         .max_mem = 0x10000000,
-    },
-    /* SS-4 */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCstation LX";
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-MicroSparc-I");
+    smc->hwdef = &ss_lx_hwdef;
+}
+
+static void ss4_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef ss4_hwdef = {
         .iommu_base   = 0x10000000,
         .tcx_base     = 0x50000000,
         .cs_base      = 0x6c000000,
@@ -1314,9 +1364,18 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .machine_id = ss4_id,
         .iommu_version = 0x05000000,
         .max_mem = 0x10000000,
-    },
-    /* SPARCClassic */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCstation 4";
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
+    smc->hwdef = &ss4_hwdef;
+}
+
+static void scls_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef scls_hwdef = {
         .iommu_base   = 0x10000000,
         .tcx_base     = 0x50000000,
         .slavio_base  = 0x70000000,
@@ -1337,11 +1396,20 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .machine_id = scls_id,
         .iommu_version = 0x05000000,
         .max_mem = 0x10000000,
-    },
-    /* SPARCbook */
-    {
+    };
+
+    mc->desc = "Sun4m platform, SPARCClassic";
+    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-MicroSparc-I");
+    smc->hwdef = &scls_hwdef;
+}
+
+static void sbook_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    Sun4mMachineClass *smc = SUN4M_MACHINE_CLASS(mc);
+    static const struct sun4m_hwdef sbook_hwdef = {
         .iommu_base   = 0x10000000,
-        .tcx_base     = 0x50000000, // XXX
+        .tcx_base     = 0x50000000, /* XXX */
         .slavio_base  = 0x70000000,
         .ms_kb_base   = 0x71000000,
         .serial_base  = 0x71100000,
@@ -1360,254 +1428,67 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
         .machine_id = sbook_id,
         .iommu_version = 0x05000000,
         .max_mem = 0x10000000,
-    },
-};
-
-/* SPARCstation 5 hardware initialisation */
-static void ss5_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[0], machine);
-}
-
-/* SPARCstation 10 hardware initialisation */
-static void ss10_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[1], machine);
-}
-
-/* SPARCserver 600MP hardware initialisation */
-static void ss600mp_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[2], machine);
-}
-
-/* SPARCstation 20 hardware initialisation */
-static void ss20_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[3], machine);
-}
-
-/* SPARCstation Voyager hardware initialisation */
-static void vger_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[4], machine);
-}
-
-/* SPARCstation LX hardware initialisation */
-static void ss_lx_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[5], machine);
-}
-
-/* SPARCstation 4 hardware initialisation */
-static void ss4_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[6], machine);
-}
-
-/* SPARCClassic hardware initialisation */
-static void scls_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[7], machine);
-}
-
-/* SPARCbook hardware initialisation */
-static void sbook_init(MachineState *machine)
-{
-    sun4m_hw_init(&sun4m_hwdefs[8], machine);
-}
-
-static void ss5_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCstation 5";
-    mc->init = ss5_init;
-    mc->block_default_type = IF_SCSI;
-    mc->is_default = true;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo ss5_type = {
-    .name = MACHINE_TYPE_NAME("SS-5"),
-    .parent = TYPE_MACHINE,
-    .class_init = ss5_class_init,
-};
-
-static void ss10_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCstation 10";
-    mc->init = ss10_init;
-    mc->block_default_type = IF_SCSI;
-    mc->max_cpus = 4;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-SuperSparc-II");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo ss10_type = {
-    .name = MACHINE_TYPE_NAME("SS-10"),
-    .parent = TYPE_MACHINE,
-    .class_init = ss10_class_init,
-};
-
-static void ss600mp_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCserver 600MP";
-    mc->init = ss600mp_init;
-    mc->block_default_type = IF_SCSI;
-    mc->max_cpus = 4;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-SuperSparc-II");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo ss600mp_type = {
-    .name = MACHINE_TYPE_NAME("SS-600MP"),
-    .parent = TYPE_MACHINE,
-    .class_init = ss600mp_class_init,
-};
-
-static void ss20_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCstation 20";
-    mc->init = ss20_init;
-    mc->block_default_type = IF_SCSI;
-    mc->max_cpus = 4;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-SuperSparc-II");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo ss20_type = {
-    .name = MACHINE_TYPE_NAME("SS-20"),
-    .parent = TYPE_MACHINE,
-    .class_init = ss20_class_init,
-};
-
-static void voyager_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCstation Voyager";
-    mc->init = vger_init;
-    mc->block_default_type = IF_SCSI;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo voyager_type = {
-    .name = MACHINE_TYPE_NAME("Voyager"),
-    .parent = TYPE_MACHINE,
-    .class_init = voyager_class_init,
-};
-
-static void ss_lx_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCstation LX";
-    mc->init = ss_lx_init;
-    mc->block_default_type = IF_SCSI;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-MicroSparc-I");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo ss_lx_type = {
-    .name = MACHINE_TYPE_NAME("LX"),
-    .parent = TYPE_MACHINE,
-    .class_init = ss_lx_class_init,
-};
-
-static void ss4_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCstation 4";
-    mc->init = ss4_init;
-    mc->block_default_type = IF_SCSI;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo ss4_type = {
-    .name = MACHINE_TYPE_NAME("SS-4"),
-    .parent = TYPE_MACHINE,
-    .class_init = ss4_class_init,
-};
-
-static void scls_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Sun4m platform, SPARCClassic";
-    mc->init = scls_init;
-    mc->block_default_type = IF_SCSI;
-    mc->default_boot_order = "c";
-    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-MicroSparc-I");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
-}
-
-static const TypeInfo scls_type = {
-    .name = MACHINE_TYPE_NAME("SPARCClassic"),
-    .parent = TYPE_MACHINE,
-    .class_init = scls_class_init,
-};
-
-static void sbook_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
+    };
 
     mc->desc = "Sun4m platform, SPARCbook";
-    mc->init = sbook_init;
-    mc->block_default_type = IF_SCSI;
-    mc->default_boot_order = "c";
     mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-MicroSparc-I");
-    mc->default_display = "tcx";
-    mc->default_ram_id = "sun4m.ram";
+    smc->hwdef = &sbook_hwdef;
 }
 
-static const TypeInfo sbook_type = {
-    .name = MACHINE_TYPE_NAME("SPARCbook"),
-    .parent = TYPE_MACHINE,
-    .class_init = sbook_class_init,
+static const TypeInfo sun4m_machine_types[] = {
+    {
+        .name           = MACHINE_TYPE_NAME("SS-5"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = ss5_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("SS-10"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = ss10_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("SS-600MP"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = ss600mp_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("SS-20"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = ss20_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("Voyager"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = voyager_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("LX"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = ss_lx_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("SS-4"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = ss4_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("SPARCClassic"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = scls_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("SPARCbook"),
+        .parent         = TYPE_SUN4M_MACHINE,
+        .class_init     = sbook_class_init,
+    }, {
+        .name           = TYPE_SUN4M_MACHINE,
+        .parent         = TYPE_MACHINE,
+        .class_size     = sizeof(Sun4mMachineClass),
+        .class_init     = sun4m_machine_class_init,
+        .abstract       = true,
+    }
 };
 
+DEFINE_TYPES(sun4m_machine_types)
+
 static void sun4m_register_types(void)
 {
     type_register_static(&idreg_info);
     type_register_static(&afx_info);
     type_register_static(&prom_info);
     type_register_static(&ram_info);
-
-    type_register_static(&ss5_type);
-    type_register_static(&ss10_type);
-    type_register_static(&ss600mp_type);
-    type_register_static(&ss20_type);
-    type_register_static(&voyager_type);
-    type_register_static(&ss_lx_type);
-    type_register_static(&ss4_type);
-    type_register_static(&scls_type);
-    type_register_static(&sbook_type);
 }
 
 type_init(sun4m_register_types)
diff --git a/hw/sparc/trace-events b/hw/sparc/trace-events
index 355b07ae05..d3a30a816a 100644
--- a/hw/sparc/trace-events
+++ b/hw/sparc/trace-events
@@ -1,8 +1,6 @@
 # See docs/devel/tracing.txt for syntax documentation.
 
 # sun4m.c
-sun4m_cpu_interrupt(unsigned int level) "Set CPU IRQ %d"
-sun4m_cpu_reset_interrupt(unsigned int level) "Reset CPU IRQ %d"
 sun4m_cpu_set_irq_raise(int level) "Raise CPU IRQ %d"
 sun4m_cpu_set_irq_lower(int level) "Lower CPU IRQ %d"
 
@@ -19,3 +17,5 @@ sun4m_iommu_bad_addr(uint64_t addr) "bad addr 0x%"PRIx64
 # leon3.c
 leon3_set_irq(int intno) "Set CPU IRQ %d"
 leon3_reset_irq(int intno) "Reset CPU IRQ %d"
+int_helper_icache_freeze(void) "Instruction cache: freeze"
+int_helper_dcache_freeze(void) "Data cache: freeze"
diff --git a/hw/sparc64/sparc64.c b/hw/sparc64/sparc64.c
index e3f9219a10..8654e955eb 100644
--- a/hw/sparc64/sparc64.c
+++ b/hw/sparc64/sparc64.c
@@ -26,7 +26,6 @@
 #include "qemu/osdep.h"
 #include "cpu.h"
 #include "hw/boards.h"
-#include "hw/char/serial.h"
 #include "hw/sparc/sparc64.h"
 #include "qemu/timer.h"
 #include "sysemu/reset.h"
@@ -35,68 +34,6 @@
 
 #define TICK_MAX             0x7fffffffffffffffULL
 
-void cpu_check_irqs(CPUSPARCState *env)
-{
-    CPUState *cs;
-    uint32_t pil = env->pil_in |
-                  (env->softint & ~(SOFTINT_TIMER | SOFTINT_STIMER));
-
-    /* We should be holding the BQL before we mess with IRQs */
-    g_assert(qemu_mutex_iothread_locked());
-
-    /* TT_IVEC has a higher priority (16) than TT_EXTINT (31..17) */
-    if (env->ivec_status & 0x20) {
-        return;
-    }
-    cs = env_cpu(env);
-    /* check if TM or SM in SOFTINT are set
-       setting these also causes interrupt 14 */
-    if (env->softint & (SOFTINT_TIMER | SOFTINT_STIMER)) {
-        pil |= 1 << 14;
-    }
-
-    /* The bit corresponding to psrpil is (1<< psrpil), the next bit
-       is (2 << psrpil). */
-    if (pil < (2 << env->psrpil)) {
-        if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
-            trace_sparc64_cpu_check_irqs_reset_irq(env->interrupt_index);
-            env->interrupt_index = 0;
-            cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
-        }
-        return;
-    }
-
-    if (cpu_interrupts_enabled(env)) {
-
-        unsigned int i;
-
-        for (i = 15; i > env->psrpil; i--) {
-            if (pil & (1 << i)) {
-                int old_interrupt = env->interrupt_index;
-                int new_interrupt = TT_EXTINT | i;
-
-                if (unlikely(env->tl > 0 && cpu_tsptr(env)->tt > new_interrupt
-                  && ((cpu_tsptr(env)->tt & 0x1f0) == TT_EXTINT))) {
-                    trace_sparc64_cpu_check_irqs_noset_irq(env->tl,
-                                                      cpu_tsptr(env)->tt,
-                                                      new_interrupt);
-                } else if (old_interrupt != new_interrupt) {
-                    env->interrupt_index = new_interrupt;
-                    trace_sparc64_cpu_check_irqs_set_irq(i, old_interrupt,
-                                                         new_interrupt);
-                    cpu_interrupt(cs, CPU_INTERRUPT_HARD);
-                }
-                break;
-            }
-        }
-    } else if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
-        trace_sparc64_cpu_check_irqs_disabled(pil, env->pil_in, env->softint,
-                                              env->interrupt_index);
-        env->interrupt_index = 0;
-        cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
-    }
-}
-
 static void cpu_kick_irq(SPARCCPU *cpu)
 {
     CPUState *cs = CPU(cpu);
diff --git a/hw/sparc64/trace-events b/hw/sparc64/trace-events
index a0b29987d2..b85d14c30c 100644
--- a/hw/sparc64/trace-events
+++ b/hw/sparc64/trace-events
@@ -9,10 +9,6 @@ sun4u_iommu_mem_write(uint64_t addr, uint64_t val, int size) "addr: 0x%"PRIx64"
 sun4u_iommu_translate(uint64_t addr, uint64_t trans_addr, uint64_t tte) "xlate 0x%"PRIx64" => pa 0x%"PRIx64" tte: 0x%"PRIx64
 
 # sparc64.c
-sparc64_cpu_check_irqs_reset_irq(int intno) "Reset CPU IRQ (current interrupt 0x%x)"
-sparc64_cpu_check_irqs_noset_irq(uint32_t tl, uint32_t tt, int intno) "Not setting CPU IRQ: TL=%d current 0x%x >= pending 0x%x"
-sparc64_cpu_check_irqs_set_irq(unsigned int i, int old, int new) "Set CPU IRQ %d old=0x%x new=0x%x"
-sparc64_cpu_check_irqs_disabled(uint32_t pil, uint32_t pil_in, uint32_t softint, int intno) "Interrupts disabled, pil=0x%08x pil_in=0x%08x softint=0x%08x current interrupt 0x%x"
 sparc64_cpu_ivec_raise_irq(int irq) "Raise IVEC IRQ %d"
 sparc64_cpu_ivec_lower_irq(int irq) "Lower IVEC IRQ %d"
 sparc64_cpu_tick_irq_disabled(void) "tick_irq: softint disabled"