spapr, xics, xive: Move cpu_intc_create from SpaprIrq to SpaprInterruptController

This method essentially represents code which belongs to the interrupt
controller, but needs to be called on all possible intcs, rather than
just the currently active one.  The "dual" version therefore calls
into the xics and xive versions confusingly.

Handle this more directly, by making it instead a method on the intc
backend, and always calling it on every backend that exists.

While we're there, streamline the error reporting a bit.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>

diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index b67e9c324516c8b450ea161591e6c0702f4b5fb3..9338daba3dc45417134f0357b2029facd1872251 100644 (file)
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -495,10 +495,33 @@ static Property spapr_xive_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
+static int spapr_xive_cpu_intc_create(SpaprInterruptController *intc,
+                                      PowerPCCPU *cpu, Error **errp)
+{
+    SpaprXive *xive = SPAPR_XIVE(intc);
+    Object *obj;
+    SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu);
+
+    obj = xive_tctx_create(OBJECT(cpu), XIVE_ROUTER(xive), errp);
+    if (!obj) {
+        return -1;
+    }
+
+    spapr_cpu->tctx = XIVE_TCTX(obj);
+
+    /*
+     * (TCG) Early setting the OS CAM line for hotplugged CPUs as they
+     * don't beneficiate from the reset of the XIVE IRQ backend
+     */
+    spapr_xive_set_tctx_os_cam(spapr_cpu->tctx);
+    return 0;
+}
+
 static void spapr_xive_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     XiveRouterClass *xrc = XIVE_ROUTER_CLASS(klass);
+    SpaprInterruptControllerClass *sicc = SPAPR_INTC_CLASS(klass);
 
     dc->desc    = "sPAPR XIVE Interrupt Controller";
     dc->props   = spapr_xive_properties;
@@ -511,6 +534,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
     xrc->get_nvt = spapr_xive_get_nvt;
     xrc->write_nvt = spapr_xive_write_nvt;
     xrc->get_tctx = spapr_xive_get_tctx;
+
+    sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
 }
 
 static const TypeInfo spapr_xive_info = {

diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
index 4874e6be55db19c163fabfc5061066cc5d59afb0..946311b858c883ea2a3e090fd987206575f33d2f 100644 (file)
--- a/hw/intc/xics_spapr.c
+++ b/hw/intc/xics_spapr.c
@@ -330,13 +330,31 @@ void spapr_dt_xics(SpaprMachineState *spapr, uint32_t nr_servers, void *fdt,
     _FDT(fdt_setprop_cell(fdt, node, "phandle", phandle));
 }
 
+static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
+                                       PowerPCCPU *cpu, Error **errp)
+{
+    ICSState *ics = ICS_SPAPR(intc);
+    Object *obj;
+    SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu);
+
+    obj = icp_create(OBJECT(cpu), TYPE_ICP, ics->xics, errp);
+    if (!obj) {
+        return -1;
+    }
+
+    spapr_cpu->icp = ICP(obj);
+    return 0;
+}
+
 static void ics_spapr_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     ICSStateClass *isc = ICS_CLASS(klass);
+    SpaprInterruptControllerClass *sicc = SPAPR_INTC_CLASS(klass);
 
     device_class_set_parent_realize(dc, ics_spapr_realize,
                                     &isc->parent_realize);
+    sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
 }
 
 static const TypeInfo ics_spapr_info = {

diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 1d93de8161f380bc26f7f5d2322eb11a1404cb7e..3e4302c7d5964203ad89f5369d987a4bab5dc471 100644 (file)
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -237,8 +237,7 @@ static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
     qemu_register_reset(spapr_cpu_reset, cpu);
     spapr_cpu_reset(cpu);
 
-    spapr->irq->cpu_intc_create(spapr, cpu, &local_err);
-    if (local_err) {
+    if (spapr_irq_cpu_intc_create(spapr, cpu, &local_err) < 0) {
         goto error_unregister;
     }
 

diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index 8791dec1ba329e5654356faafd1e67294c070d44..9cb2fc71ca9dbe21073c101ed82e3b360f0f68ce 100644 (file)
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -138,23 +138,6 @@ static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
     ics_pic_print_info(spapr->ics, mon);
 }
 
-static void spapr_irq_cpu_intc_create_xics(SpaprMachineState *spapr,
-                                           PowerPCCPU *cpu, Error **errp)
-{
-    Error *local_err = NULL;
-    Object *obj;
-    SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu);
-
-    obj = icp_create(OBJECT(cpu), TYPE_ICP, XICS_FABRIC(spapr),
-                     &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-
-    spapr_cpu->icp = ICP(obj);
-}
-
 static int spapr_irq_post_load_xics(SpaprMachineState *spapr, int version_id)
 {
     if (!kvm_irqchip_in_kernel()) {
@@ -203,7 +186,6 @@ SpaprIrq spapr_irq_xics = {
     .free        = spapr_irq_free_xics,
     .print_info  = spapr_irq_print_info_xics,
     .dt_populate = spapr_dt_xics,
-    .cpu_intc_create = spapr_irq_cpu_intc_create_xics,
     .post_load   = spapr_irq_post_load_xics,
     .reset       = spapr_irq_reset_xics,
     .set_irq     = spapr_irq_set_irq_xics,
@@ -239,28 +221,6 @@ static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
     spapr_xive_pic_print_info(spapr->xive, mon);
 }
 
-static void spapr_irq_cpu_intc_create_xive(SpaprMachineState *spapr,
-                                           PowerPCCPU *cpu, Error **errp)
-{
-    Error *local_err = NULL;
-    Object *obj;
-    SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu);
-
-    obj = xive_tctx_create(OBJECT(cpu), XIVE_ROUTER(spapr->xive), &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-
-    spapr_cpu->tctx = XIVE_TCTX(obj);
-
-    /*
-     * (TCG) Early setting the OS CAM line for hotplugged CPUs as they
-     * don't beneficiate from the reset of the XIVE IRQ backend
-     */
-    spapr_xive_set_tctx_os_cam(spapr_cpu->tctx);
-}
-
 static int spapr_irq_post_load_xive(SpaprMachineState *spapr, int version_id)
 {
     return spapr_xive_post_load(spapr->xive, version_id);
@@ -316,7 +276,6 @@ SpaprIrq spapr_irq_xive = {
     .free        = spapr_irq_free_xive,
     .print_info  = spapr_irq_print_info_xive,
     .dt_populate = spapr_dt_xive,
-    .cpu_intc_create = spapr_irq_cpu_intc_create_xive,
     .post_load   = spapr_irq_post_load_xive,
     .reset       = spapr_irq_reset_xive,
     .set_irq     = spapr_irq_set_irq_xive,
@@ -381,20 +340,6 @@ static void spapr_irq_dt_populate_dual(SpaprMachineState *spapr,
     spapr_irq_current(spapr)->dt_populate(spapr, nr_servers, fdt, phandle);
 }
 
-static void spapr_irq_cpu_intc_create_dual(SpaprMachineState *spapr,
-                                           PowerPCCPU *cpu, Error **errp)
-{
-    Error *local_err = NULL;
-
-    spapr_irq_xive.cpu_intc_create(spapr, cpu, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-
-    spapr_irq_xics.cpu_intc_create(spapr, cpu, errp);
-}
-
 static int spapr_irq_post_load_dual(SpaprMachineState *spapr, int version_id)
 {
     /*
@@ -460,7 +405,6 @@ SpaprIrq spapr_irq_dual = {
     .free        = spapr_irq_free_dual,
     .print_info  = spapr_irq_print_info_dual,
     .dt_populate = spapr_irq_dt_populate_dual,
-    .cpu_intc_create = spapr_irq_cpu_intc_create_dual,
     .post_load   = spapr_irq_post_load_dual,
     .reset       = spapr_irq_reset_dual,
     .set_irq     = spapr_irq_set_irq_dual,
@@ -527,6 +471,30 @@ static int spapr_irq_check(SpaprMachineState *spapr, Error **errp)
 /*
  * sPAPR IRQ frontend routines for devices
  */
+#define ALL_INTCS(spapr_) \
+    { SPAPR_INTC((spapr_)->ics), SPAPR_INTC((spapr_)->xive), }
+
+int spapr_irq_cpu_intc_create(SpaprMachineState *spapr,
+                              PowerPCCPU *cpu, Error **errp)
+{
+    SpaprInterruptController *intcs[] = ALL_INTCS(spapr);
+    int i;
+    int rc;
+
+    for (i = 0; i < ARRAY_SIZE(intcs); i++) {
+        SpaprInterruptController *intc = intcs[i];
+        if (intc) {
+            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
+            rc = sicc->cpu_intc_create(intc, cpu, errp);
+            if (rc < 0) {
+                return rc;
+            }
+        }
+    }
+
+    return 0;
+}
+
 void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
 {
     MachineState *machine = MACHINE(spapr);
@@ -762,7 +730,6 @@ SpaprIrq spapr_irq_xics_legacy = {
     .free        = spapr_irq_free_xics,
     .print_info  = spapr_irq_print_info_xics,
     .dt_populate = spapr_dt_xics,
-    .cpu_intc_create = spapr_irq_cpu_intc_create_xics,
     .post_load   = spapr_irq_post_load_xics,
     .reset       = spapr_irq_reset_xics,
     .set_irq     = spapr_irq_set_irq_xics,

diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
index b9398e0be3312c8c2f0b52a5b44d38fc257983d3..5e641e23c1d224e549c1f268b80feca2fd01328e 100644 (file)
--- a/include/hw/ppc/spapr_irq.h
+++ b/include/hw/ppc/spapr_irq.h
@@ -43,8 +43,19 @@ typedef struct SpaprInterruptController SpaprInterruptController;
 
 typedef struct SpaprInterruptControllerClass {
     InterfaceClass parent;
+
+    /*
+     * These methods will typically be called on all intcs, active and
+     * inactive
+     */
+    int (*cpu_intc_create)(SpaprInterruptController *intc,
+                            PowerPCCPU *cpu, Error **errp);
 } SpaprInterruptControllerClass;
 
+int spapr_irq_cpu_intc_create(SpaprMachineState *spapr,
+                              PowerPCCPU *cpu, Error **errp);
+
+
 void spapr_irq_msi_init(SpaprMachineState *spapr, uint32_t nr_msis);
 int spapr_irq_msi_alloc(SpaprMachineState *spapr, uint32_t num, bool align,
                         Error **errp);
@@ -61,8 +72,6 @@ typedef struct SpaprIrq {
     void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
     void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
                         void *fdt, uint32_t phandle);
-    void (*cpu_intc_create)(SpaprMachineState *spapr, PowerPCCPU *cpu,
-                            Error **errp);
     int (*post_load)(SpaprMachineState *spapr, int version_id);
     void (*reset)(SpaprMachineState *spapr, Error **errp);
     void (*set_irq)(void *opaque, int srcno, int val);