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Re: [PATCH for-5.0 v5 12/23] ppc/xive: Introduce a XiveFabric interface
From: |
Greg Kurz |
Subject: |
Re: [PATCH for-5.0 v5 12/23] ppc/xive: Introduce a XiveFabric interface |
Date: |
Wed, 20 Nov 2019 18:27:49 +0100 |
On Fri, 15 Nov 2019 17:24:25 +0100
Cédric Le Goater <address@hidden> wrote:
> The XiveFabric QOM interface acts as the PowerBUS interface between
> the interrupt controller and the system and should be implemented by
> the QEMU machine. On HW, the XIVE sub-engine is responsible for the
> communication with the other chip is the Common Queue (CQ) bridge
> unit.
>
> This interface offers a 'match_nvt' handler to perform the CAM line
> matching when looking for a XIVE Presenter with a dispatched NVT.
>
> Signed-off-by: Cédric Le Goater <address@hidden>
> ---
Reviewed-by: Greg Kurz <address@hidden>
> include/hw/ppc/xive.h | 22 ++++++++++++++++++++++
> hw/intc/xive.c | 10 ++++++++++
> 2 files changed, 32 insertions(+)
>
> diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
> index f9aa0fa0dac3..b00af988779b 100644
> --- a/include/hw/ppc/xive.h
> +++ b/include/hw/ppc/xive.h
> @@ -399,6 +399,28 @@ int xive_presenter_tctx_match(XivePresenter *xptr,
> XiveTCTX *tctx,
> uint8_t nvt_blk, uint32_t nvt_idx,
> bool cam_ignore, uint32_t logic_serv);
>
> +/*
> + * XIVE Fabric (Interface between Interrupt Controller and Machine)
> + */
> +
> +typedef struct XiveFabric XiveFabric;
> +
> +#define TYPE_XIVE_FABRIC "xive-fabric"
> +#define XIVE_FABRIC(obj) \
> + INTERFACE_CHECK(XiveFabric, (obj), TYPE_XIVE_FABRIC)
> +#define XIVE_FABRIC_CLASS(klass) \
> + OBJECT_CLASS_CHECK(XiveFabricClass, (klass), TYPE_XIVE_FABRIC)
> +#define XIVE_FABRIC_GET_CLASS(obj) \
> + OBJECT_GET_CLASS(XiveFabricClass, (obj), TYPE_XIVE_FABRIC)
> +
> +typedef struct XiveFabricClass {
> + InterfaceClass parent;
> + int (*match_nvt)(XiveFabric *xfb, uint8_t format,
> + uint8_t nvt_blk, uint32_t nvt_idx,
> + bool cam_ignore, uint8_t priority,
> + uint32_t logic_serv, XiveTCTXMatch *match);
> +} XiveFabricClass;
> +
> /*
> * XIVE END ESBs
> */
> diff --git a/hw/intc/xive.c b/hw/intc/xive.c
> index da6196ca958f..1c9e58f8deac 100644
> --- a/hw/intc/xive.c
> +++ b/hw/intc/xive.c
> @@ -1893,8 +1893,18 @@ static const TypeInfo xive_presenter_info = {
> .class_size = sizeof(XivePresenterClass),
> };
>
> +/*
> + * XIVE Fabric
> + */
> +static const TypeInfo xive_fabric_info = {
> + .name = TYPE_XIVE_FABRIC,
> + .parent = TYPE_INTERFACE,
> + .class_size = sizeof(XiveFabricClass),
> +};
> +
> static void xive_register_types(void)
> {
> + type_register_static(&xive_fabric_info);
> type_register_static(&xive_source_info);
> type_register_static(&xive_notifier_info);
> type_register_static(&xive_presenter_info);
- Re: [PATCH for-5.0 v5 08/23] ppc/xive: Introduce a XivePresenter interface, (continued)
- [PATCH for-5.0 v5 09/23] ppc/xive: Implement the XivePresenter interface, Cédric Le Goater, 2019/11/15
- [PATCH for-5.0 v5 10/23] ppc/pnv: Loop on the threads of the chip to find a matching NVT, Cédric Le Goater, 2019/11/15
- [PATCH for-5.0 v5 11/23] ppc/pnv: Introduce a pnv_xive_is_cpu_enabled() helper, Cédric Le Goater, 2019/11/15
- [PATCH for-5.0 v5 12/23] ppc/xive: Introduce a XiveFabric interface, Cédric Le Goater, 2019/11/15
- Re: [PATCH for-5.0 v5 12/23] ppc/xive: Introduce a XiveFabric interface,
Greg Kurz <=
- [PATCH for-5.0 v5 13/23] ppc/pnv: Implement the XiveFabric interface, Cédric Le Goater, 2019/11/15
- [PATCH for-5.0 v5 14/23] ppc/spapr: Implement the XiveFabric interface, Cédric Le Goater, 2019/11/15
[PATCH for-5.0 v5 15/23] ppc/xive: Use the XiveFabric and XivePresenter interfaces, Cédric Le Goater, 2019/11/15