From d3eb47a2a18f850c2ebd20e50d164251ad321128 Mon Sep 17 00:00:00 2001 From: =?utf8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 25 Nov 2019 07:58:08 +0100 Subject: [PATCH] ppc/xive: Introduce a XiveFabric interface MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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. Reviewed-by: Greg Kurz Signed-off-by: Cédric Le Goater Message-Id: <20191125065820.927-9-clg@kaod.org> Signed-off-by: David Gibson --- hw/intc/xive.c | 10 ++++++++++ include/hw/ppc/xive.h | 22 ++++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/hw/intc/xive.c b/hw/intc/xive.c index da6196ca95..1c9e58f8de 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); diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index f9aa0fa0da..b00af98877 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 */ -- 2.42.0