From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/include/hw/vfio/vfio-platform.h | 77 ++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 qemu/include/hw/vfio/vfio-platform.h (limited to 'qemu/include/hw/vfio/vfio-platform.h') diff --git a/qemu/include/hw/vfio/vfio-platform.h b/qemu/include/hw/vfio/vfio-platform.h new file mode 100644 index 000000000..c5cf1d79f --- /dev/null +++ b/qemu/include/hw/vfio/vfio-platform.h @@ -0,0 +1,77 @@ +/* + * vfio based device assignment support - platform devices + * + * Copyright Linaro Limited, 2014 + * + * Authors: + * Kim Phillips + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + * Based on vfio based PCI device assignment support: + * Copyright Red Hat, Inc. 2012 + */ + +#ifndef HW_VFIO_VFIO_PLATFORM_H +#define HW_VFIO_VFIO_PLATFORM_H + +#include "hw/sysbus.h" +#include "hw/vfio/vfio-common.h" +#include "qemu/event_notifier.h" +#include "qemu/queue.h" +#include "hw/irq.h" + +#define TYPE_VFIO_PLATFORM "vfio-platform" + +enum { + VFIO_IRQ_INACTIVE = 0, + VFIO_IRQ_PENDING = 1, + VFIO_IRQ_ACTIVE = 2, + /* VFIO_IRQ_ACTIVE_AND_PENDING cannot happen with VFIO */ +}; + +typedef struct VFIOINTp { + QLIST_ENTRY(VFIOINTp) next; /* entry for IRQ list */ + QSIMPLEQ_ENTRY(VFIOINTp) pqnext; /* entry for pending IRQ queue */ + EventNotifier interrupt; /* eventfd triggered on interrupt */ + EventNotifier unmask; /* eventfd for unmask on QEMU bypass */ + qemu_irq qemuirq; + struct VFIOPlatformDevice *vdev; /* back pointer to device */ + int state; /* inactive, pending, active */ + uint8_t pin; /* index */ + uint32_t flags; /* IRQ info flags */ + bool kvm_accel; /* set when QEMU bypass through KVM enabled */ +} VFIOINTp; + +/* function type for user side eventfd handler */ +typedef void (*eventfd_user_side_handler_t)(VFIOINTp *intp); + +typedef struct VFIOPlatformDevice { + SysBusDevice sbdev; + VFIODevice vbasedev; /* not a QOM object */ + VFIORegion **regions; + QLIST_HEAD(, VFIOINTp) intp_list; /* list of IRQs */ + /* queue of pending IRQs */ + QSIMPLEQ_HEAD(pending_intp_queue, VFIOINTp) pending_intp_queue; + char *compat; /* compatibility string */ + uint32_t mmap_timeout; /* delay to re-enable mmaps after interrupt */ + QEMUTimer *mmap_timer; /* allows fast-path resume after IRQ hit */ + QemuMutex intp_mutex; /* protect the intp_list IRQ state */ + bool irqfd_allowed; /* debug option to force irqfd on/off */ +} VFIOPlatformDevice; + +typedef struct VFIOPlatformDeviceClass { + /*< private >*/ + SysBusDeviceClass parent_class; + /*< public >*/ +} VFIOPlatformDeviceClass; + +#define VFIO_PLATFORM_DEVICE(obj) \ + OBJECT_CHECK(VFIOPlatformDevice, (obj), TYPE_VFIO_PLATFORM) +#define VFIO_PLATFORM_DEVICE_CLASS(klass) \ + OBJECT_CLASS_CHECK(VFIOPlatformDeviceClass, (klass), TYPE_VFIO_PLATFORM) +#define VFIO_PLATFORM_DEVICE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(VFIOPlatformDeviceClass, (obj), TYPE_VFIO_PLATFORM) + +#endif /*HW_VFIO_VFIO_PLATFORM_H*/ -- cgit 1.2.3-korg