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hw/vfio/platform: amd-xgbe device 

This patch introduces the amd-xgbe VFIO platform device. It
allows the guest to do passthrough on a device exposing an
"amd,xgbe-seattle-v1a" compat string.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Eric Auger 2016-02-19 09:42:29 -07:00 committed by Alex Williamson
parent 3fc1c182c1
commit 62d9551247
3 changed files with 107 additions and 0 deletions
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1
hw/vfio/Makefile.objs
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@ -3,4 +3,5 @@ obj-$(CONFIG_SOFTMMU) += common.o
obj-$(CONFIG_PCI) += pci.o pci-quirks.o obj-$(CONFIG_PCI) += pci.o pci-quirks.o
obj-$(CONFIG_SOFTMMU) += platform.o obj-$(CONFIG_SOFTMMU) += platform.o
obj-$(CONFIG_SOFTMMU) += calxeda-xgmac.o obj-$(CONFIG_SOFTMMU) += calxeda-xgmac.o
obj-$(CONFIG_SOFTMMU) += amd-xgbe.o
endif endif

55
hw/vfio/amd-xgbe.c Normal file
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@ -0,0 +1,55 @@
/*
* AMD XGBE VFIO device
*
* Copyright Linaro Limited, 2015
*
* 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.
*
*/
#include "hw/vfio/vfio-amd-xgbe.h"
static void amd_xgbe_realize(DeviceState *dev, Error **errp)
{
VFIOPlatformDevice *vdev = VFIO_PLATFORM_DEVICE(dev);
VFIOAmdXgbeDeviceClass *k = VFIO_AMD_XGBE_DEVICE_GET_CLASS(dev);
vdev->compat = g_strdup("amd,xgbe-seattle-v1a");
k->parent_realize(dev, errp);
}
static const VMStateDescription vfio_platform_amd_xgbe_vmstate = {
.name = TYPE_VFIO_AMD_XGBE,
.unmigratable = 1,
};
static void vfio_amd_xgbe_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VFIOAmdXgbeDeviceClass *vcxc =
VFIO_AMD_XGBE_DEVICE_CLASS(klass);
vcxc->parent_realize = dc->realize;
dc->realize = amd_xgbe_realize;
dc->desc = "VFIO AMD XGBE";
dc->vmsd = &vfio_platform_amd_xgbe_vmstate;
}
static const TypeInfo vfio_amd_xgbe_dev_info = {
.name = TYPE_VFIO_AMD_XGBE,
.parent = TYPE_VFIO_PLATFORM,
.instance_size = sizeof(VFIOAmdXgbeDevice),
.class_init = vfio_amd_xgbe_class_init,
.class_size = sizeof(VFIOAmdXgbeDeviceClass),
};
static void register_amd_xgbe_dev_type(void)
{
type_register_static(&vfio_amd_xgbe_dev_info);
}
type_init(register_amd_xgbe_dev_type)

51
include/hw/vfio/vfio-amd-xgbe.h Normal file
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@ -0,0 +1,51 @@
/*
* VFIO AMD XGBE device
*
* Copyright Linaro Limited, 2015
*
* 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_AMD_XGBE_H
#define HW_VFIO_VFIO_AMD_XGBE_H
#include "hw/vfio/vfio-platform.h"
#define TYPE_VFIO_AMD_XGBE "vfio-amd-xgbe"
/**
* This device exposes:
* - 5 MMIO regions: MAC, PCS, SerDes Rx/Tx regs,
SerDes Integration Registers 1/2 & 2/2
* - 2 level sensitive IRQs and optional DMA channel IRQs
*/
struct VFIOAmdXgbeDevice {
VFIOPlatformDevice vdev;
};
typedef struct VFIOAmdXgbeDevice VFIOAmdXgbeDevice;
struct VFIOAmdXgbeDeviceClass {
/*< private >*/
VFIOPlatformDeviceClass parent_class;
/*< public >*/
DeviceRealize parent_realize;
};
typedef struct VFIOAmdXgbeDeviceClass VFIOAmdXgbeDeviceClass;
#define VFIO_AMD_XGBE_DEVICE(obj) \
OBJECT_CHECK(VFIOAmdXgbeDevice, (obj), TYPE_VFIO_AMD_XGBE)
#define VFIO_AMD_XGBE_DEVICE_CLASS(klass) \
OBJECT_CLASS_CHECK(VFIOAmdXgbeDeviceClass, (klass), \
TYPE_VFIO_AMD_XGBE)
#define VFIO_AMD_XGBE_DEVICE_GET_CLASS(obj) \
OBJECT_GET_CLASS(VFIOAmdXgbeDeviceClass, (obj), \
TYPE_VFIO_AMD_XGBE)
#endif