mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-08-02 23:33:54 -06:00
cd831ed5c4
So the caller can choose which ASID is destined. No need to update the batch functions as they will always be called from memory listener updates at the moment. Memory listener updates will always update ASID 0, as it's the passthrough ASID. All vhost devices's ASID are 0 at this moment. Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Message-Id: <20221215113144.322011-10-eperezma@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
|
|
* vhost-vdpa.h
|
|
*
|
|
* Copyright(c) 2017-2018 Intel Corporation.
|
|
* Copyright(c) 2020 Red Hat, Inc.
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef HW_VIRTIO_VHOST_VDPA_H
|
|
#define HW_VIRTIO_VHOST_VDPA_H
|
|
|
|
#include <gmodule.h>
|
|
|
|
#include "hw/virtio/vhost-iova-tree.h"
|
|
#include "hw/virtio/vhost-shadow-virtqueue.h"
|
|
#include "hw/virtio/virtio.h"
|
|
#include "standard-headers/linux/vhost_types.h"
|
|
|
|
/*
|
|
* ASID dedicated to map guest's addresses. If SVQ is disabled it maps GPA to
|
|
* qemu's IOVA. If SVQ is enabled it maps also the SVQ vring here
|
|
*/
|
|
#define VHOST_VDPA_GUEST_PA_ASID 0
|
|
|
|
typedef struct VhostVDPAHostNotifier {
|
|
MemoryRegion mr;
|
|
void *addr;
|
|
} VhostVDPAHostNotifier;
|
|
|
|
typedef struct vhost_vdpa {
|
|
int device_fd;
|
|
int index;
|
|
uint32_t msg_type;
|
|
bool iotlb_batch_begin_sent;
|
|
uint32_t address_space_id;
|
|
MemoryListener listener;
|
|
struct vhost_vdpa_iova_range iova_range;
|
|
uint64_t acked_features;
|
|
bool shadow_vqs_enabled;
|
|
/* IOVA mapping used by the Shadow Virtqueue */
|
|
VhostIOVATree *iova_tree;
|
|
GPtrArray *shadow_vqs;
|
|
const VhostShadowVirtqueueOps *shadow_vq_ops;
|
|
void *shadow_vq_ops_opaque;
|
|
struct vhost_dev *dev;
|
|
VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX];
|
|
} VhostVDPA;
|
|
|
|
int vhost_vdpa_dma_map(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
|
|
hwaddr size, void *vaddr, bool readonly);
|
|
int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
|
|
hwaddr size);
|
|
|
|
#endif
|