1 files changed, 182 insertions, 279 deletions

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index 095c16a300..ffc0747c7f 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -49,40 +49,41 @@ int xics_get_cpu_index_by_dt_id(int cpu_dt_id)
     return -1;
 }
 
-void xics_cpu_destroy(XICSState *xics, PowerPCCPU *cpu)
+void xics_cpu_destroy(XICSFabric *xi, PowerPCCPU *cpu)
 {
     CPUState *cs = CPU(cpu);
-    ICPState *ss = &xics->ss[cs->cpu_index];
+    ICPState *icp = xics_icp_get(xi, cs->cpu_index);
 
-    assert(cs->cpu_index < xics->nr_servers);
-    assert(cs == ss->cs);
+    assert(icp);
+    assert(cs == icp->cs);
 
-    ss->output = NULL;
-    ss->cs = NULL;
+    icp->output = NULL;
+    icp->cs = NULL;
 }
 
-void xics_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
+void xics_cpu_setup(XICSFabric *xi, PowerPCCPU *cpu)
 {
     CPUState *cs = CPU(cpu);
     CPUPPCState *env = &cpu->env;
-    ICPState *ss = &xics->ss[cs->cpu_index];
-    XICSStateClass *info = XICS_COMMON_GET_CLASS(xics);
+    ICPState *icp = xics_icp_get(xi, cs->cpu_index);
+    ICPStateClass *icpc;
 
-    assert(cs->cpu_index < xics->nr_servers);
+    assert(icp);
 
-    ss->cs = cs;
+    icp->cs = cs;
 
-    if (info->cpu_setup) {
-        info->cpu_setup(xics, cpu);
+    icpc = ICP_GET_CLASS(icp);
+    if (icpc->cpu_setup) {
+        icpc->cpu_setup(icp, cpu);
     }
 
     switch (PPC_INPUT(env)) {
     case PPC_FLAGS_INPUT_POWER7:
-        ss->output = env->irq_inputs[POWER7_INPUT_INT];
+        icp->output = env->irq_inputs[POWER7_INPUT_INT];
         break;
 
     case PPC_FLAGS_INPUT_970:
-        ss->output = env->irq_inputs[PPC970_INPUT_INT];
+        icp->output = env->irq_inputs[PPC970_INPUT_INT];
         break;
 
     default:
@@ -92,185 +93,43 @@ void xics_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
     }
 }
 
-static void xics_common_pic_print_info(InterruptStatsProvider *obj,
-                                       Monitor *mon)
+void icp_pic_print_info(ICPState *icp, Monitor *mon)
 {
-    XICSState *xics = XICS_COMMON(obj);
-    ICSState *ics;
-    uint32_t i;
-
-    for (i = 0; i < xics->nr_servers; i++) {
-        ICPState *icp = &xics->ss[i];
-
-        if (!icp->output) {
-            continue;
-        }
-        monitor_printf(mon, "CPU %d XIRR=%08x (%p) PP=%02x MFRR=%02x\n",
-                       i, icp->xirr, icp->xirr_owner,
-                       icp->pending_priority, icp->mfrr);
-    }
-
-    QLIST_FOREACH(ics, &xics->ics, list) {
-        monitor_printf(mon, "ICS %4x..%4x %p\n",
-                       ics->offset, ics->offset + ics->nr_irqs - 1, ics);
-
-        if (!ics->irqs) {
-            continue;
-        }
-
-        for (i = 0; i < ics->nr_irqs; i++) {
-            ICSIRQState *irq = ics->irqs + i;
-
-            if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) {
-                continue;
-            }
-            monitor_printf(mon, "  %4x %s %02x %02x\n",
-                           ics->offset + i,
-                           (irq->flags & XICS_FLAGS_IRQ_LSI) ?
-                           "LSI" : "MSI",
-                           irq->priority, irq->status);
-        }
-    }
-}
-
-/*
- * XICS Common class - parent for emulated XICS and KVM-XICS
- */
-static void xics_common_reset(DeviceState *d)
-{
-    XICSState *xics = XICS_COMMON(d);
-    ICSState *ics;
-    int i;
-
-    for (i = 0; i < xics->nr_servers; i++) {
-        device_reset(DEVICE(&xics->ss[i]));
-    }
-
-    QLIST_FOREACH(ics, &xics->ics, list) {
-        device_reset(DEVICE(ics));
-    }
-}
-
-static void xics_prop_get_nr_irqs(Object *obj, Visitor *v, const char *name,
-                                  void *opaque, Error **errp)
-{
-    XICSState *xics = XICS_COMMON(obj);
-    int64_t value = xics->nr_irqs;
+    int cpu_index = icp->cs ? icp->cs->cpu_index : -1;
 
-    visit_type_int(v, name, &value, errp);
-}
-
-static void xics_prop_set_nr_irqs(Object *obj, Visitor *v, const char *name,
-                                  void *opaque, Error **errp)
-{
-    XICSState *xics = XICS_COMMON(obj);
-    XICSStateClass *info = XICS_COMMON_GET_CLASS(xics);
-    Error *error = NULL;
-    int64_t value;
-
-    visit_type_int(v, name, &value, &error);
-    if (error) {
-        error_propagate(errp, error);
+    if (!icp->output) {
         return;
     }
-    if (xics->nr_irqs) {
-        error_setg(errp, "Number of interrupts is already set to %u",
-                   xics->nr_irqs);
-        return;
-    }
-
-    assert(info->set_nr_irqs);
-    info->set_nr_irqs(xics, value, errp);
-}
-
-void xics_set_nr_servers(XICSState *xics, uint32_t nr_servers,
-                         const char *typename, Error **errp)
-{
-    int i;
-
-    xics->nr_servers = nr_servers;
-
-    xics->ss = g_malloc0(xics->nr_servers * sizeof(ICPState));
-    for (i = 0; i < xics->nr_servers; i++) {
-        char name[32];
-        ICPState *icp = &xics->ss[i];
-
-        object_initialize(icp, sizeof(*icp), typename);
-        snprintf(name, sizeof(name), "icp[%d]", i);
-        object_property_add_child(OBJECT(xics), name, OBJECT(icp), errp);
-        icp->xics = xics;
-    }
+    monitor_printf(mon, "CPU %d XIRR=%08x (%p) PP=%02x MFRR=%02x\n",
+                   cpu_index, icp->xirr, icp->xirr_owner,
+                   icp->pending_priority, icp->mfrr);
 }
 
-static void xics_prop_get_nr_servers(Object *obj, Visitor *v,
-                                     const char *name, void *opaque,
-                                     Error **errp)
+void ics_pic_print_info(ICSState *ics, Monitor *mon)
 {
-    XICSState *xics = XICS_COMMON(obj);
-    int64_t value = xics->nr_servers;
-
-    visit_type_int(v, name, &value, errp);
-}
+    uint32_t i;
 
-static void xics_prop_set_nr_servers(Object *obj, Visitor *v,
-                                     const char *name, void *opaque,
-                                     Error **errp)
-{
-    XICSState *xics = XICS_COMMON(obj);
-    XICSStateClass *xsc = XICS_COMMON_GET_CLASS(xics);
-    Error *error = NULL;
-    int64_t value;
+    monitor_printf(mon, "ICS %4x..%4x %p\n",
+                   ics->offset, ics->offset + ics->nr_irqs - 1, ics);
 
-    visit_type_int(v, name, &value, &error);
-    if (error) {
-        error_propagate(errp, error);
+    if (!ics->irqs) {
         return;
     }
-    if (xics->nr_servers) {
-        error_setg(errp, "Number of servers is already set to %u",
-                   xics->nr_servers);
-        return;
-    }
-
-    assert(xsc->set_nr_servers);
-    xsc->set_nr_servers(xics, value, errp);
-}
-
-static void xics_common_initfn(Object *obj)
-{
-    XICSState *xics = XICS_COMMON(obj);
 
-    QLIST_INIT(&xics->ics);
-    object_property_add(obj, "nr_irqs", "int",
-                        xics_prop_get_nr_irqs, xics_prop_set_nr_irqs,
-                        NULL, NULL, NULL);
-    object_property_add(obj, "nr_servers", "int",
-                        xics_prop_get_nr_servers, xics_prop_set_nr_servers,
-                        NULL, NULL, NULL);
-}
-
-static void xics_common_class_init(ObjectClass *oc, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(oc);
-    InterruptStatsProviderClass *ic = INTERRUPT_STATS_PROVIDER_CLASS(oc);
+    for (i = 0; i < ics->nr_irqs; i++) {
+        ICSIRQState *irq = ics->irqs + i;
 
-    dc->reset = xics_common_reset;
-    ic->print_info = xics_common_pic_print_info;
+        if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) {
+            continue;
+        }
+        monitor_printf(mon, "  %4x %s %02x %02x\n",
+                       ics->offset + i,
+                       (irq->flags & XICS_FLAGS_IRQ_LSI) ?
+                       "LSI" : "MSI",
+                       irq->priority, irq->status);
+    }
 }
 
-static const TypeInfo xics_common_info = {
-    .name          = TYPE_XICS_COMMON,
-    .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(XICSState),
-    .class_size    = sizeof(XICSStateClass),
-    .instance_init = xics_common_initfn,
-    .class_init    = xics_common_class_init,
-    .interfaces = (InterfaceInfo[]) {
-        { TYPE_INTERRUPT_STATS_PROVIDER },
-        { }
-    },
-};
-
 /*
  * ICP: Presentation layer
  */
@@ -278,8 +137,8 @@ static const TypeInfo xics_common_info = {
 #define XISR_MASK  0x00ffffff
 #define CPPR_MASK  0xff000000
 
-#define XISR(ss)   (((ss)->xirr) & XISR_MASK)
-#define CPPR(ss)   (((ss)->xirr) >> 24)
+#define XISR(icp)   (((icp)->xirr) & XISR_MASK)
+#define CPPR(icp)   (((icp)->xirr) >> 24)
 
 static void ics_reject(ICSState *ics, uint32_t nr)
 {
@@ -290,7 +149,7 @@ static void ics_reject(ICSState *ics, uint32_t nr)
     }
 }
 
-static void ics_resend(ICSState *ics)
+void ics_resend(ICSState *ics)
 {
     ICSStateClass *k = ICS_BASE_GET_CLASS(ics);
 
@@ -308,151 +167,152 @@ static void ics_eoi(ICSState *ics, int nr)
     }
 }
 
-static void icp_check_ipi(ICPState *ss)
+static void icp_check_ipi(ICPState *icp)
 {
-    if (XISR(ss) && (ss->pending_priority <= ss->mfrr)) {
+    if (XISR(icp) && (icp->pending_priority <= icp->mfrr)) {
         return;
     }
 
-    trace_xics_icp_check_ipi(ss->cs->cpu_index, ss->mfrr);
+    trace_xics_icp_check_ipi(icp->cs->cpu_index, icp->mfrr);
 
-    if (XISR(ss) && ss->xirr_owner) {
-        ics_reject(ss->xirr_owner, XISR(ss));
+    if (XISR(icp) && icp->xirr_owner) {
+        ics_reject(icp->xirr_owner, XISR(icp));
     }
 
-    ss->xirr = (ss->xirr & ~XISR_MASK) | XICS_IPI;
-    ss->pending_priority = ss->mfrr;
-    ss->xirr_owner = NULL;
-    qemu_irq_raise(ss->output);
+    icp->xirr = (icp->xirr & ~XISR_MASK) | XICS_IPI;
+    icp->pending_priority = icp->mfrr;
+    icp->xirr_owner = NULL;
+    qemu_irq_raise(icp->output);
 }
 
-static void icp_resend(ICPState *ss)
+void icp_resend(ICPState *icp)
 {
-    ICSState *ics;
+    XICSFabric *xi = icp->xics;
+    XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi);
 
-    if (ss->mfrr < CPPR(ss)) {
-        icp_check_ipi(ss);
-    }
-    QLIST_FOREACH(ics, &ss->xics->ics, list) {
-        ics_resend(ics);
+    if (icp->mfrr < CPPR(icp)) {
+        icp_check_ipi(icp);
     }
+
+    xic->ics_resend(xi);
 }
 
-void icp_set_cppr(ICPState *ss, uint8_t cppr)
+void icp_set_cppr(ICPState *icp, uint8_t cppr)
 {
     uint8_t old_cppr;
     uint32_t old_xisr;
 
-    old_cppr = CPPR(ss);
-    ss->xirr = (ss->xirr & ~CPPR_MASK) | (cppr << 24);
+    old_cppr = CPPR(icp);
+    icp->xirr = (icp->xirr & ~CPPR_MASK) | (cppr << 24);
 
     if (cppr < old_cppr) {
-        if (XISR(ss) && (cppr <= ss->pending_priority)) {
-            old_xisr = XISR(ss);
-            ss->xirr &= ~XISR_MASK; /* Clear XISR */
-            ss->pending_priority = 0xff;
-            qemu_irq_lower(ss->output);
-            if (ss->xirr_owner) {
-                ics_reject(ss->xirr_owner, old_xisr);
-                ss->xirr_owner = NULL;
+        if (XISR(icp) && (cppr <= icp->pending_priority)) {
+            old_xisr = XISR(icp);
+            icp->xirr &= ~XISR_MASK; /* Clear XISR */
+            icp->pending_priority = 0xff;
+            qemu_irq_lower(icp->output);
+            if (icp->xirr_owner) {
+                ics_reject(icp->xirr_owner, old_xisr);
+                icp->xirr_owner = NULL;
             }
         }
     } else {
-        if (!XISR(ss)) {
-            icp_resend(ss);
+        if (!XISR(icp)) {
+            icp_resend(icp);
         }
     }
 }
 
-void icp_set_mfrr(ICPState *ss, uint8_t mfrr)
+void icp_set_mfrr(ICPState *icp, uint8_t mfrr)
 {
-    ss->mfrr = mfrr;
-    if (mfrr < CPPR(ss)) {
-        icp_check_ipi(ss);
+    icp->mfrr = mfrr;
+    if (mfrr < CPPR(icp)) {
+        icp_check_ipi(icp);
     }
 }
 
-uint32_t icp_accept(ICPState *ss)
+uint32_t icp_accept(ICPState *icp)
 {
-    uint32_t xirr = ss->xirr;
+    uint32_t xirr = icp->xirr;
 
-    qemu_irq_lower(ss->output);
-    ss->xirr = ss->pending_priority << 24;
-    ss->pending_priority = 0xff;
-    ss->xirr_owner = NULL;
+    qemu_irq_lower(icp->output);
+    icp->xirr = icp->pending_priority << 24;
+    icp->pending_priority = 0xff;
+    icp->xirr_owner = NULL;
 
-    trace_xics_icp_accept(xirr, ss->xirr);
+    trace_xics_icp_accept(xirr, icp->xirr);
 
     return xirr;
 }
 
-uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr)
+uint32_t icp_ipoll(ICPState *icp, uint32_t *mfrr)
 {
     if (mfrr) {
-        *mfrr = ss->mfrr;
+        *mfrr = icp->mfrr;
     }
-    return ss->xirr;
+    return icp->xirr;
 }
 
-void icp_eoi(ICPState *ss, uint32_t xirr)
+void icp_eoi(ICPState *icp, uint32_t xirr)
 {
+    XICSFabric *xi = icp->xics;
+    XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi);
     ICSState *ics;
     uint32_t irq;
 
     /* Send EOI -> ICS */
-    ss->xirr = (ss->xirr & ~CPPR_MASK) | (xirr & CPPR_MASK);
-    trace_xics_icp_eoi(ss->cs->cpu_index, xirr, ss->xirr);
+    icp->xirr = (icp->xirr & ~CPPR_MASK) | (xirr & CPPR_MASK);
+    trace_xics_icp_eoi(icp->cs->cpu_index, xirr, icp->xirr);
     irq = xirr & XISR_MASK;
-    QLIST_FOREACH(ics, &ss->xics->ics, list) {
-        if (ics_valid_irq(ics, irq)) {
-            ics_eoi(ics, irq);
-        }
+
+    ics = xic->ics_get(xi, irq);
+    if (ics) {
+        ics_eoi(ics, irq);
     }
-    if (!XISR(ss)) {
-        icp_resend(ss);
+    if (!XISR(icp)) {
+        icp_resend(icp);
     }
 }
 
 static void icp_irq(ICSState *ics, int server, int nr, uint8_t priority)
 {
-    XICSState *xics = ics->xics;
-    ICPState *ss = xics->ss + server;
+    ICPState *icp = xics_icp_get(ics->xics, server);
 
     trace_xics_icp_irq(server, nr, priority);
 
-    if ((priority >= CPPR(ss))
-        || (XISR(ss) && (ss->pending_priority <= priority))) {
+    if ((priority >= CPPR(icp))
+        || (XISR(icp) && (icp->pending_priority <= priority))) {
         ics_reject(ics, nr);
     } else {
-        if (XISR(ss) && ss->xirr_owner) {
-            ics_reject(ss->xirr_owner, XISR(ss));
-            ss->xirr_owner = NULL;
+        if (XISR(icp) && icp->xirr_owner) {
+            ics_reject(icp->xirr_owner, XISR(icp));
+            icp->xirr_owner = NULL;
         }
-        ss->xirr = (ss->xirr & ~XISR_MASK) | (nr & XISR_MASK);
-        ss->xirr_owner = ics;
-        ss->pending_priority = priority;
-        trace_xics_icp_raise(ss->xirr, ss->pending_priority);
-        qemu_irq_raise(ss->output);
+        icp->xirr = (icp->xirr & ~XISR_MASK) | (nr & XISR_MASK);
+        icp->xirr_owner = ics;
+        icp->pending_priority = priority;
+        trace_xics_icp_raise(icp->xirr, icp->pending_priority);
+        qemu_irq_raise(icp->output);
     }
 }
 
 static void icp_dispatch_pre_save(void *opaque)
 {
-    ICPState *ss = opaque;
-    ICPStateClass *info = ICP_GET_CLASS(ss);
+    ICPState *icp = opaque;
+    ICPStateClass *info = ICP_GET_CLASS(icp);
 
     if (info->pre_save) {
-        info->pre_save(ss);
+        info->pre_save(icp);
     }
 }
 
 static int icp_dispatch_post_load(void *opaque, int version_id)
 {
-    ICPState *ss = opaque;
-    ICPStateClass *info = ICP_GET_CLASS(ss);
+    ICPState *icp = opaque;
+    ICPStateClass *info = ICP_GET_CLASS(icp);
 
     if (info->post_load) {
-        return info->post_load(ss, version_id);
+        return info->post_load(icp, version_id);
     }
 
     return 0;
@@ -485,12 +345,30 @@ static void icp_reset(DeviceState *dev)
     qemu_set_irq(icp->output, 0);
 }
 
+static void icp_realize(DeviceState *dev, Error **errp)
+{
+    ICPState *icp = ICP(dev);
+    Object *obj;
+    Error *err = NULL;
+
+    obj = object_property_get_link(OBJECT(dev), "xics", &err);
+    if (!obj) {
+        error_setg(errp, "%s: required link 'xics' not found: %s",
+                   __func__, error_get_pretty(err));
+        return;
+    }
+
+    icp->xics = XICS_FABRIC(obj);
+}
+
+
 static void icp_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->reset = icp_reset;
     dc->vmsd = &vmstate_icp_server;
+    dc->realize = icp_realize;
 }
 
 static const TypeInfo icp_info = {
@@ -663,17 +541,6 @@ static void ics_simple_reset(DeviceState *dev)
     }
 }
 
-static int ics_simple_post_load(ICSState *ics, int version_id)
-{
-    int i;
-
-    for (i = 0; i < ics->xics->nr_servers; i++) {
-        icp_resend(&ics->xics->ss[i]);
-    }
-
-    return 0;
-}
-
 static void ics_simple_dispatch_pre_save(void *opaque)
 {
     ICSState *ics = opaque;
@@ -746,15 +613,20 @@ static void ics_simple_realize(DeviceState *dev, Error **errp)
     ics->qirqs = qemu_allocate_irqs(ics_simple_set_irq, ics, ics->nr_irqs);
 }
 
+static Property ics_simple_properties[] = {
+    DEFINE_PROP_UINT32("nr-irqs", ICSState, nr_irqs, 0),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void ics_simple_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     ICSStateClass *isc = ICS_BASE_CLASS(klass);
 
-    dc->realize = ics_simple_realize;
+    isc->realize = ics_simple_realize;
+    dc->props = ics_simple_properties;
     dc->vmsd = &vmstate_ics_simple;
     dc->reset = ics_simple_reset;
-    isc->post_load = ics_simple_post_load;
     isc->reject = ics_simple_reject;
     isc->resend = ics_simple_resend;
     isc->eoi = ics_simple_eoi;
@@ -769,38 +641,69 @@ static const TypeInfo ics_simple_info = {
     .instance_init = ics_simple_initfn,
 };
 
+static void ics_base_realize(DeviceState *dev, Error **errp)
+{
+    ICSStateClass *icsc = ICS_BASE_GET_CLASS(dev);
+    ICSState *ics = ICS_BASE(dev);
+    Object *obj;
+    Error *err = NULL;
+
+    obj = object_property_get_link(OBJECT(dev), "xics", &err);
+    if (!obj) {
+        error_setg(errp, "%s: required link 'xics' not found: %s",
+                   __func__, error_get_pretty(err));
+        return;
+    }
+    ics->xics = XICS_FABRIC(obj);
+
+
+    if (icsc->realize) {
+        icsc->realize(dev, errp);
+    }
+}
+
+static void ics_base_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->realize = ics_base_realize;
+}
+
 static const TypeInfo ics_base_info = {
     .name = TYPE_ICS_BASE,
     .parent = TYPE_DEVICE,
     .abstract = true,
     .instance_size = sizeof(ICSState),
+    .class_init = ics_base_class_init,
     .class_size = sizeof(ICSStateClass),
 };
 
+static const TypeInfo xics_fabric_info = {
+    .name = TYPE_XICS_FABRIC,
+    .parent = TYPE_INTERFACE,
+    .class_size = sizeof(XICSFabricClass),
+};
+
 /*
  * Exported functions
  */
-ICSState *xics_find_source(XICSState *xics, int irq)
+qemu_irq xics_get_qirq(XICSFabric *xi, int irq)
 {
-    ICSState *ics;
+    XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi);
+    ICSState *ics = xic->ics_get(xi, irq);
 
-    QLIST_FOREACH(ics, &xics->ics, list) {
-        if (ics_valid_irq(ics, irq)) {
-            return ics;
-        }
+    if (ics) {
+        return ics->qirqs[irq - ics->offset];
     }
+
     return NULL;
 }
 
-qemu_irq xics_get_qirq(XICSState *xics, int irq)
+ICPState *xics_icp_get(XICSFabric *xi, int server)
 {
-    ICSState *ics = xics_find_source(xics, irq);
+    XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi);
 
-    if (ics) {
-        return ics->qirqs[irq - ics->offset];
-    }
-
-    return NULL;
+    return xic->icp_get(xi, server);
 }
 
 void ics_set_irq_type(ICSState *ics, int srcno, bool lsi)
@@ -813,10 +716,10 @@ void ics_set_irq_type(ICSState *ics, int srcno, bool lsi)
 
 static void xics_register_types(void)
 {
-    type_register_static(&xics_common_info);
     type_register_static(&ics_simple_info);
     type_register_static(&ics_base_info);
     type_register_static(&icp_info);
+    type_register_static(&xics_fabric_info);
 }
 
 type_init(xics_register_types)