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authorPeter Maydell <peter.maydell@linaro.org>2015-06-10 15:46:39 +0100
committerPeter Maydell <peter.maydell@linaro.org>2015-06-10 15:46:39 +0100
commiteed8a8f572e659c85f8711d79c20da95021e06e2 (patch)
treefef5f196de8dcf835b6e3551cec63d8cbd2cd3f7 /include
parente015fe008a3a8901913248cdb50c62dba795c588 (diff)
parent7a8d15d7702444be715b6ae32574659483c0c158 (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.h46
-rw-r--r--include/hw/vfio/vfio-common.h1
-rw-r--r--include/hw/vfio/vfio-platform.h75
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*/