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ppc/xics: remove set_nr_servers() handler from XICSStateClass 

Today, the ICP (Interrupt Controller Presenter) objects are created by
the 'nr_servers' property handler of the XICS object and a class
handler. They are realized in the XICS object realize routine.

Let's simplify the process by creating the ICP objects along with the
XICS object at the machine level.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2017-02-27 15:29:11 +01:00 committed by David Gibson
parent 4e4169f7a2
commit 817bb6a446
5 changed files with 42 additions and 112 deletions
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74
hw/intc/xics.c
View File

@ -151,67 +151,11 @@ static void xics_common_reset(DeviceState *d)
}
}
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;
}
}
static void xics_prop_get_nr_servers(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
XICSState *xics = XICS_COMMON(obj);
int64_t value = xics->nr_servers;
visit_type_int(v, name, &value, errp);
}
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;
visit_type_int(v, name, &value, &error);
if (error) {
error_propagate(errp, error);
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_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)
@ -450,12 +394,30 @@ 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_COMMON(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 = {

21
hw/intc/xics_kvm.c
View File

@ -358,12 +358,6 @@ static void xics_kvm_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
ss->cap_irq_xics_enabled = true;
}
static void xics_kvm_set_nr_servers(XICSState *xics, uint32_t nr_servers,
Error **errp)
{
xics_set_nr_servers(xics, nr_servers, TYPE_KVM_ICP, errp);
}
static void rtas_dummy(PowerPCCPU *cpu, sPAPRMachineState *spapr,
uint32_t token,
uint32_t nargs, target_ulong args,
@ -376,9 +370,7 @@ static void rtas_dummy(PowerPCCPU *cpu, sPAPRMachineState *spapr,
static void xics_kvm_realize(DeviceState *dev, Error **errp)
{
KVMXICSState *xicskvm = XICS_SPAPR_KVM(dev);
XICSState *xics = XICS_COMMON(dev);
int i, rc;
Error *error = NULL;
int rc;
struct kvm_create_device xics_create_device = {
.type = KVM_DEV_TYPE_XICS,
.flags = 0,
@ -428,16 +420,6 @@ static void xics_kvm_realize(DeviceState *dev, Error **errp)
xicskvm->kernel_xics_fd = xics_create_device.fd;
assert(xics->nr_servers);
for (i = 0; i < xics->nr_servers; i++) {
object_property_set_bool(OBJECT(&xics->ss[i]), true, "realized",
&error);
if (error) {
error_propagate(errp, error);
goto fail;
}
}
kvm_kernel_irqchip = true;
kvm_msi_via_irqfd_allowed = true;
kvm_gsi_direct_mapping = true;
@ -458,7 +440,6 @@ static void xics_kvm_class_init(ObjectClass *oc, void *data)
dc->realize = xics_kvm_realize;
xsc->cpu_setup = xics_kvm_cpu_setup;
xsc->set_nr_servers = xics_kvm_set_nr_servers;
}
static const TypeInfo xics_spapr_kvm_info = {

26
hw/intc/xics_spapr.c
View File

@ -239,23 +239,8 @@ static void rtas_int_on(PowerPCCPU *cpu, sPAPRMachineState *spapr,
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
static void xics_spapr_set_nr_servers(XICSState *xics, uint32_t nr_servers,
Error **errp)
{
xics_set_nr_servers(xics, nr_servers, TYPE_ICP, errp);
}
static void xics_spapr_realize(DeviceState *dev, Error **errp)
{
XICSState *xics = XICS_SPAPR(dev);
Error *error = NULL;
int i;
if (!xics->nr_servers) {
error_setg(errp, "Number of servers needs to be greater 0");
return;
}
/* Registration of global state belongs into realize */
spapr_rtas_register(RTAS_IBM_SET_XIVE, "ibm,set-xive", rtas_set_xive);
spapr_rtas_register(RTAS_IBM_GET_XIVE, "ibm,get-xive", rtas_get_xive);
@ -268,24 +253,13 @@ static void xics_spapr_realize(DeviceState *dev, Error **errp)
spapr_register_hypercall(H_XIRR_X, h_xirr_x);
spapr_register_hypercall(H_EOI, h_eoi);
spapr_register_hypercall(H_IPOLL, h_ipoll);
for (i = 0; i < xics->nr_servers; i++) {
object_property_set_bool(OBJECT(&xics->ss[i]), true, "realized",
&error);
if (error) {
error_propagate(errp, error);
return;
}
}
}
static void xics_spapr_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
XICSStateClass *xsc = XICS_SPAPR_CLASS(oc);
dc->realize = xics_spapr_realize;
xsc->set_nr_servers = xics_spapr_set_nr_servers;
}
static const TypeInfo xics_spapr_info = {

30
hw/ppc/spapr.c
View File

@ -96,17 +96,17 @@
#define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift))
static XICSState *try_create_xics(const char *type, const char *type_ics,
int nr_servers, int nr_irqs, Error **errp)
const char *type_icp, int nr_servers,
int nr_irqs, Error **errp)
{
Error *err = NULL, *local_err = NULL;
XICSState *xics;
ICSState *ics = NULL;
int i;
xics = XICS_COMMON(object_new(type));
qdev_set_parent_bus(DEVICE(xics), sysbus_get_default());
object_property_set_int(OBJECT(xics), nr_servers, "nr_servers", &err);
object_property_set_bool(OBJECT(xics), true, "realized", &local_err);
error_propagate(&err, local_err);
object_property_set_bool(OBJECT(xics), true, "realized", &err);
if (err) {
goto error;
}
@ -122,6 +122,22 @@ static XICSState *try_create_xics(const char *type, const char *type_ics,
}
QLIST_INSERT_HEAD(&xics->ics, ics, list);
xics->ss = g_malloc0(nr_servers * sizeof(ICPState));
xics->nr_servers = nr_servers;
for (i = 0; i < nr_servers; i++) {
ICPState *icp = &xics->ss[i];
object_initialize(icp, sizeof(*icp), type_icp);
object_property_add_child(OBJECT(xics), "icp[*]", OBJECT(icp), NULL);
object_property_add_const_link(OBJECT(icp), "xics", OBJECT(xics), NULL);
object_property_set_bool(OBJECT(icp), true, "realized", &err);
if (err) {
goto error;
}
object_unref(OBJECT(icp));
}
return xics;
error:
@ -143,7 +159,7 @@ static XICSState *xics_system_init(MachineState *machine,
if (machine_kernel_irqchip_allowed(machine)) {
xics = try_create_xics(TYPE_XICS_SPAPR_KVM, TYPE_ICS_KVM,
nr_servers, nr_irqs, &err);
TYPE_KVM_ICP, nr_servers, nr_irqs, &err);
}
if (machine_kernel_irqchip_required(machine) && !xics) {
error_reportf_err(err,
@ -154,8 +170,8 @@ static XICSState *xics_system_init(MachineState *machine,
}
if (!xics) {
xics = try_create_xics(TYPE_XICS_SPAPR, TYPE_ICS_SIMPLE, nr_servers,
nr_irqs, errp);
xics = try_create_xics(TYPE_XICS_SPAPR, TYPE_ICS_SIMPLE, TYPE_ICP,
nr_servers, nr_irqs, errp);
}
return xics;

3
include/hw/ppc/xics.h
View File

@ -74,7 +74,6 @@ struct XICSStateClass {
DeviceClass parent_class;
void (*cpu_setup)(XICSState *icp, PowerPCCPU *cpu);
void (*set_nr_servers)(XICSState *icp, uint32_t nr_servers, Error **errp);
};
struct XICSState {
@ -190,8 +189,6 @@ void spapr_dt_xics(XICSState *xics, void *fdt, uint32_t phandle);
void xics_cpu_setup(XICSState *icp, PowerPCCPU *cpu);
void xics_cpu_destroy(XICSState *icp, PowerPCCPU *cpu);
void xics_set_nr_servers(XICSState *xics, uint32_t nr_servers,
const char *typename, Error **errp);
/* Internal XICS interfaces */
int xics_get_cpu_index_by_dt_id(int cpu_dt_id);