diff options
author | Peter Maydell <peter.maydell@linaro.org> | 2015-06-10 15:46:39 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2015-06-10 15:46:39 +0100 |
commit | eed8a8f572e659c85f8711d79c20da95021e06e2 (patch) | |
tree | fef5f196de8dcf835b6e3551cec63d8cbd2cd3f7 /include | |
parent | e015fe008a3a8901913248cdb50c62dba795c588 (diff) | |
parent | 7a8d15d7702444be715b6ae32574659483c0c158 (diff) |
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20150609.0' into staging
Initial VFIO platform device support, v2 (Eric Auger, et al.)
# gpg: Signature made Tue Jun 9 15:25:40 2015 BST using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg: aka "Alex Williamson <alex@shazbot.org>"
# gpg: aka "Alex Williamson <alwillia@redhat.com>"
# gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>"
* remotes/awilliam/tags/vfio-update-20150609.0:
hw/vfio/platform: calxeda xgmac device
hw/vfio/platform: add irq assignment
hw/vfio/platform: vfio-platform skeleton
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
-rw-r--r-- | include/hw/vfio/vfio-calxeda-xgmac.h | 46 | ||||
-rw-r--r-- | include/hw/vfio/vfio-common.h | 1 | ||||
-rw-r--r-- | include/hw/vfio/vfio-platform.h | 75 |
3 files changed, 122 insertions, 0 deletions
diff --git a/include/hw/vfio/vfio-calxeda-xgmac.h b/include/hw/vfio/vfio-calxeda-xgmac.h new file mode 100644 index 0000000000..f994775c09 --- /dev/null +++ b/include/hw/vfio/vfio-calxeda-xgmac.h @@ -0,0 +1,46 @@ +/* + * VFIO calxeda xgmac device + * + * Copyright Linaro Limited, 2014 + * + * Authors: + * Eric Auger <eric.auger@linaro.org> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#ifndef HW_VFIO_VFIO_CALXEDA_XGMAC_H +#define HW_VFIO_VFIO_CALXEDA_XGMAC_H + +#include "hw/vfio/vfio-platform.h" + +#define TYPE_VFIO_CALXEDA_XGMAC "vfio-calxeda-xgmac" + +/** + * This device exposes: + * - a single MMIO region corresponding to its register space + * - 3 IRQS (main and 2 power related IRQs) + */ +typedef struct VFIOCalxedaXgmacDevice { + VFIOPlatformDevice vdev; +} VFIOCalxedaXgmacDevice; + +typedef struct VFIOCalxedaXgmacDeviceClass { + /*< private >*/ + VFIOPlatformDeviceClass parent_class; + /*< public >*/ + DeviceRealize parent_realize; +} VFIOCalxedaXgmacDeviceClass; + +#define VFIO_CALXEDA_XGMAC_DEVICE(obj) \ + OBJECT_CHECK(VFIOCalxedaXgmacDevice, (obj), TYPE_VFIO_CALXEDA_XGMAC) +#define VFIO_CALXEDA_XGMAC_DEVICE_CLASS(klass) \ + OBJECT_CLASS_CHECK(VFIOCalxedaXgmacDeviceClass, (klass), \ + TYPE_VFIO_CALXEDA_XGMAC) +#define VFIO_CALXEDA_XGMAC_DEVICE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(VFIOCalxedaXgmacDeviceClass, (obj), \ + TYPE_VFIO_CALXEDA_XGMAC) + +#endif diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 0d1fb805bb..59a321d479 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -42,6 +42,7 @@ enum { VFIO_DEVICE_TYPE_PCI = 0, + VFIO_DEVICE_TYPE_PLATFORM = 1, }; typedef struct VFIORegion { diff --git a/include/hw/vfio/vfio-platform.h b/include/hw/vfio/vfio-platform.h new file mode 100644 index 0000000000..26b2ad6f4e --- /dev/null +++ b/include/hw/vfio/vfio-platform.h @@ -0,0 +1,75 @@ +/* + * vfio based device assignment support - platform devices + * + * Copyright Linaro Limited, 2014 + * + * Authors: + * Kim Phillips <kim.phillips@linaro.org> + * + * 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 */ +} 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 */ +} 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*/ |