On Thu, Dec 06, 2018 at 12:22:17AM +0100, Cédric Le Goater wrote:
> The XiveNotifier offers a simple interface, between the XiveSource
> object and the main interrupt controller of the machine. It will
> forward event notifications to the XIVE Interrupt Virtualization
> Routing Engine (IVRE).
>
> Signed-off-by: Cédric Le Goater <c...@kaod.org>
> ---
> include/hw/ppc/xive.h | 23 +++++++++++++++++++++++
> hw/intc/xive.c | 25 +++++++++++++++++++++++++
> 2 files changed, 48 insertions(+)
>
> diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
> index 7cebc32eba4c..6770cffec67d 100644
> --- a/include/hw/ppc/xive.h
> +++ b/include/hw/ppc/xive.h
> @@ -142,6 +142,27 @@
>
> #include "hw/qdev-core.h"
>
> +/*
> + * XIVE Fabric (Interface between Source and Router)
> + */
> +
> +typedef struct XiveNotifier {
> + Object parent;
> +} XiveNotifier;
> +
> +#define TYPE_XIVE_NOTIFIER "xive-fabric"
I'm applying this, but changing the string here from "xive-fabric" to
"xive-notifier".
> +#define XIVE_NOTIFIER(obj) \
> + OBJECT_CHECK(XiveNotifier, (obj), TYPE_XIVE_NOTIFIER)
> +#define XIVE_NOTIFIER_CLASS(klass) \
> + OBJECT_CLASS_CHECK(XiveNotifierClass, (klass), TYPE_XIVE_NOTIFIER)
> +#define XIVE_NOTIFIER_GET_CLASS(obj) \
> + OBJECT_GET_CLASS(XiveNotifierClass, (obj), TYPE_XIVE_NOTIFIER)
> +
> +typedef struct XiveNotifierClass {
> + InterfaceClass parent;
> + void (*notify)(XiveNotifier *xn, uint32_t lisn);
> +} XiveNotifierClass;
> +
> /*
> * XIVE Interrupt Source
> */
> @@ -171,6 +192,8 @@ typedef struct XiveSource {
> uint64_t esb_flags;
> uint32_t esb_shift;
> MemoryRegion esb_mmio;
> +
> + XiveNotifier *xive;
> } XiveSource;
>
> /*
> diff --git a/hw/intc/xive.c b/hw/intc/xive.c
> index 11c7aac962de..79238eb57fae 100644
> --- a/hw/intc/xive.c
> +++ b/hw/intc/xive.c
> @@ -155,7 +155,11 @@ static bool xive_source_esb_eoi(XiveSource *xsrc,
> uint32_t srcno)
> */
> static void xive_source_notify(XiveSource *xsrc, int srcno)
> {
> + XiveNotifierClass *xnc = XIVE_NOTIFIER_GET_CLASS(xsrc->xive);
>
> + if (xnc->notify) {
> + xnc->notify(xsrc->xive, srcno);
> + }
> }
>
> /*
> @@ -362,6 +366,17 @@ static void xive_source_reset(void *dev)
> static void xive_source_realize(DeviceState *dev, Error **errp)
> {
> XiveSource *xsrc = XIVE_SOURCE(dev);
> + Object *obj;
> + Error *local_err = NULL;
> +
> + obj = object_property_get_link(OBJECT(dev), "xive", &local_err);
> + if (!obj) {
> + error_propagate(errp, local_err);
> + error_prepend(errp, "required link 'xive' not found: ");
> + return;
> + }
> +
> + xsrc->xive = XIVE_NOTIFIER(obj);
>
> if (!xsrc->nr_irqs) {
> error_setg(errp, "Number of interrupt needs to be greater than 0");
> @@ -428,9 +443,19 @@ static const TypeInfo xive_source_info = {
> .class_init = xive_source_class_init,
> };
>
> +/*
> + * XIVE Fabric
> + */
> +static const TypeInfo xive_fabric_info = {
> + .name = TYPE_XIVE_NOTIFIER,
> + .parent = TYPE_INTERFACE,
> + .class_size = sizeof(XiveNotifierClass),
> +};
> +
> static void xive_register_types(void)
> {
> type_register_static(&xive_source_info);
> + type_register_static(&xive_fabric_info);
> }
>
> type_init(xive_register_types)
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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