mirror of
https://github.com/clearlinux/kvmtool.git
synced 2026-06-16 02:15:47 +00:00
kvm tools: Rework on virtio transport abstraction.
This patch reworks on virtio transport abstraction.
* Move virtio transport operations to virtio operations and drop
virtio/trans.c This makes the abstraction much cleaner.
* Rename struct virtio_trans to struct virtio_device
struct virtio_trans {
void *virtio;
enum virtio_trans_type type;
struct virtio_trans_ops *trans_ops;
struct virtio_ops *virtio_ops;
};
struct virtio_device {
void *virtio;
struct virtio_ops *ops;
};
The virtio_trans struct is bit confusing since it also includes virtio
operations.
* Introduce virtio_init()
To init device, e.g.
Before:
virtio_trans_init()
ndev->vtrans.trans_ops->init()
ndev->vtrans.virtio_ops = &net_dev_virtio_ops
After:
virtio_init()
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
@@ -59,7 +59,6 @@ OBJS += virtio/net.o
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OBJS += virtio/rng.o
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OBJS += virtio/balloon.o
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OBJS += virtio/pci.o
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OBJS += virtio/trans.o
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OBJS += disk/blk.o
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OBJS += disk/qcow.o
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OBJS += disk/raw.o
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@@ -3,7 +3,6 @@
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#include "kvm/virtio.h"
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#include "kvm/pci.h"
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#include "kvm/threadpool.h"
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#include "kvm/virtio-trans.h"
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#include <sys/types.h>
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#include <dirent.h>
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@@ -42,7 +41,7 @@ struct p9_dev_job {
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struct p9_dev {
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struct list_head list;
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struct virtio_trans vtrans;
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struct virtio_device vdev;
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struct virtio_9p_config *config;
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u32 features;
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@@ -2,7 +2,6 @@
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#define KVM__VIRTIO_PCI_H
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#include "kvm/pci.h"
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#include "kvm/virtio-trans.h"
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#include <linux/types.h>
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@@ -12,7 +11,7 @@
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struct kvm;
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struct virtio_pci_ioevent_param {
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struct virtio_trans *vtrans;
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struct virtio_device *vdev;
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u32 vq;
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};
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@@ -38,12 +37,10 @@ struct virtio_pci {
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struct virtio_pci_ioevent_param ioeventfds[VIRTIO_PCI_MAX_VQ];
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};
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int virtio_pci__init(struct kvm *kvm, struct virtio_trans *vtrans, void *dev,
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int device_id, int subsys_id, int class);
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int virtio_pci__exit(struct kvm *kvm, struct virtio_trans *vtrans);
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int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_trans *vtrans, u32 vq);
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int virtio_pci__signal_config(struct kvm *kvm, struct virtio_trans *vtrans);
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struct virtio_trans_ops *virtio_pci__get_trans_ops(void);
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int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_device *vdev, u32 vq);
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int virtio_pci__signal_config(struct kvm *kvm, struct virtio_device *vdev);
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int virtio_pci__exit(struct kvm *kvm, struct virtio_device *vdev);
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int virtio_pci__init(struct kvm *kvm, void *dev, struct virtio_device *vdev,
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int device_id, int subsys_id, int class);
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#endif
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@@ -1,44 +0,0 @@
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#ifndef KVM__VIRTIO_TRANS_H
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#define KVM__VIRTIO_TRANS_H
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#include "kvm/kvm.h"
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enum virtio_trans_type {
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VIRTIO_PCI,
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};
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struct virtio_trans;
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struct virtio_ops {
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void (*set_config)(struct kvm *kvm, void *dev, u8 data, u32 offset);
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u8 (*get_config)(struct kvm *kvm, void *dev, u32 offset);
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u32 (*get_host_features)(struct kvm *kvm, void *dev);
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void (*set_guest_features)(struct kvm *kvm, void *dev, u32 features);
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int (*init_vq)(struct kvm *kvm, void *dev, u32 vq, u32 pfn);
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int (*notify_vq)(struct kvm *kvm, void *dev, u32 vq);
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int (*get_pfn_vq)(struct kvm *kvm, void *dev, u32 vq);
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int (*get_size_vq)(struct kvm *kvm, void *dev, u32 vq);
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void (*notify_vq_gsi)(struct kvm *kvm, void *dev, u32 vq, u32 gsi);
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void (*notify_vq_eventfd)(struct kvm *kvm, void *dev, u32 vq, u32 efd);
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};
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struct virtio_trans_ops {
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int (*init)(struct kvm *kvm, struct virtio_trans *vtrans, void *dev, int device_id,
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int subsys_id, int class);
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int (*uninit)(struct kvm *kvm, struct virtio_trans *vtrans);
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int (*signal_vq)(struct kvm *kvm, struct virtio_trans *virtio_trans, u32 queueid);
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int (*signal_config)(struct kvm *kvm, struct virtio_trans *virtio_trans);
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};
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struct virtio_trans {
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void *virtio;
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enum virtio_trans_type type;
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struct virtio_trans_ops *trans_ops;
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struct virtio_ops *virtio_ops;
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};
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int virtio_trans_init(struct virtio_trans *vtrans, enum virtio_trans_type type);
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#endif
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@@ -64,4 +64,36 @@ u16 virt_queue__get_inout_iov(struct kvm *kvm, struct virt_queue *queue,
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u16 *in, u16 *out);
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int virtio__get_dev_specific_field(int offset, bool msix, u32 *config_off);
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enum virtio_trans {
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VIRTIO_PCI,
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VIRTIO_MMIO,
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};
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struct virtio_device {
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void *virtio;
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struct virtio_ops *ops;
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};
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struct virtio_ops {
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void (*set_config)(struct kvm *kvm, void *dev, u8 data, u32 offset);
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u8 (*get_config)(struct kvm *kvm, void *dev, u32 offset);
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u32 (*get_host_features)(struct kvm *kvm, void *dev);
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void (*set_guest_features)(struct kvm *kvm, void *dev, u32 features);
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int (*init_vq)(struct kvm *kvm, void *dev, u32 vq, u32 pfn);
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int (*notify_vq)(struct kvm *kvm, void *dev, u32 vq);
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int (*get_pfn_vq)(struct kvm *kvm, void *dev, u32 vq);
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int (*get_size_vq)(struct kvm *kvm, void *dev, u32 vq);
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int (*set_size_vq)(struct kvm *kvm, void *dev, u32 vq, int size);
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void (*notify_vq_gsi)(struct kvm *kvm, void *dev, u32 vq, u32 gsi);
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void (*notify_vq_eventfd)(struct kvm *kvm, void *dev, u32 vq, u32 efd);
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int (*signal_vq)(struct kvm *kvm, struct virtio_device *vdev, u32 queueid);
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int (*signal_config)(struct kvm *kvm, struct virtio_device *vdev);
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int (*init)(struct kvm *kvm, void *dev, struct virtio_device *vdev,
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int device_id, int subsys_id, int class);
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int (*exit)(struct kvm *kvm, struct virtio_device *vdev);
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};
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int virtio_init(struct kvm *kvm, void *dev, struct virtio_device *vdev,
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struct virtio_ops *ops, enum virtio_trans trans,
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int device_id, int subsys_id, int class);
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#endif /* KVM__VIRTIO_H */
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+3
-5
@@ -1168,7 +1168,7 @@ static void virtio_p9_do_io(struct kvm *kvm, void *param)
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while (virt_queue__available(vq)) {
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virtio_p9_do_io_request(kvm, job);
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p9dev->vtrans.trans_ops->signal_vq(kvm, &p9dev->vtrans, vq - p9dev->vqs);
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p9dev->vdev.ops->signal_vq(kvm, &p9dev->vdev, vq - p9dev->vqs);
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}
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}
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@@ -1260,10 +1260,8 @@ int virtio_9p__init(struct kvm *kvm)
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struct p9_dev *p9dev;
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list_for_each_entry(p9dev, &devs, list) {
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virtio_trans_init(&p9dev->vtrans, VIRTIO_PCI);
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p9dev->vtrans.trans_ops->init(kvm, &p9dev->vtrans, p9dev,
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PCI_DEVICE_ID_VIRTIO_P9, VIRTIO_ID_9P, PCI_CLASS_P9);
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p9dev->vtrans.virtio_ops = &p9_dev_virtio_ops;
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virtio_init(kvm, p9dev, &p9dev->vdev, &p9_dev_virtio_ops,
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VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_P9, VIRTIO_ID_9P, PCI_CLASS_P9);
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}
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return 0;
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+7
-10
@@ -8,7 +8,6 @@
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#include "kvm/pci.h"
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#include "kvm/threadpool.h"
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#include "kvm/guest_compat.h"
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#include "kvm/virtio-trans.h"
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#include "kvm/kvm-ipc.h"
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#include <linux/virtio_ring.h>
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@@ -31,7 +30,7 @@
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struct bln_dev {
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struct list_head list;
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struct virtio_trans vtrans;
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struct virtio_device vdev;
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u32 features;
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@@ -116,13 +115,13 @@ static void virtio_bln_do_io(struct kvm *kvm, void *param)
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if (vq == &bdev.vqs[VIRTIO_BLN_STATS]) {
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virtio_bln_do_stat_request(kvm, &bdev, vq);
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bdev.vtrans.trans_ops->signal_vq(kvm, &bdev.vtrans, VIRTIO_BLN_STATS);
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bdev.vdev.ops->signal_vq(kvm, &bdev.vdev, VIRTIO_BLN_STATS);
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return;
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}
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while (virt_queue__available(vq)) {
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virtio_bln_do_io_request(kvm, &bdev, vq);
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bdev.vtrans.trans_ops->signal_vq(kvm, &bdev.vtrans, vq - bdev.vqs);
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bdev.vdev.ops->signal_vq(kvm, &bdev.vdev, vq - bdev.vqs);
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}
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}
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@@ -132,7 +131,7 @@ static int virtio_bln__collect_stats(void)
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virt_queue__set_used_elem(&bdev.vqs[VIRTIO_BLN_STATS], bdev.cur_stat_head,
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sizeof(struct virtio_balloon_stat));
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bdev.vtrans.trans_ops->signal_vq(kvm, &bdev.vtrans, VIRTIO_BLN_STATS);
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bdev.vdev.ops->signal_vq(kvm, &bdev.vdev, VIRTIO_BLN_STATS);
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if (read(bdev.stat_waitfd, &tmp, sizeof(tmp)) <= 0)
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return -EFAULT;
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@@ -173,7 +172,7 @@ static void handle_mem(int fd, u32 type, u32 len, u8 *msg)
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}
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/* Notify that the configuration space has changed */
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bdev.vtrans.trans_ops->signal_config(kvm, &bdev.vtrans);
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bdev.vdev.ops->signal_config(kvm, &bdev.vdev);
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}
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static void set_config(struct kvm *kvm, void *dev, u8 data, u32 offset)
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@@ -260,10 +259,8 @@ void virtio_bln__init(struct kvm *kvm)
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bdev.stat_waitfd = eventfd(0, 0);
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memset(&bdev.config, 0, sizeof(struct virtio_balloon_config));
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virtio_trans_init(&bdev.vtrans, VIRTIO_PCI);
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bdev.vtrans.trans_ops->init(kvm, &bdev.vtrans, &bdev, PCI_DEVICE_ID_VIRTIO_BLN,
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VIRTIO_ID_BALLOON, PCI_CLASS_BLN);
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bdev.vtrans.virtio_ops = &bln_dev_virtio_ops;
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virtio_init(kvm, &bdev, &bdev.vdev, &bln_dev_virtio_ops,
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VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_BLN, VIRTIO_ID_BALLOON, PCI_CLASS_BLN);
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if (compat_id != -1)
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compat_id = compat__add_message("virtio-balloon device was not detected",
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+4
-7
@@ -11,7 +11,6 @@
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#include "kvm/guest_compat.h"
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#include "kvm/virtio-pci.h"
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#include "kvm/virtio.h"
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#include "kvm/virtio-trans.h"
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#include <linux/virtio_ring.h>
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#include <linux/virtio_blk.h>
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@@ -44,7 +43,7 @@ struct blk_dev {
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struct list_head list;
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struct list_head req_list;
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struct virtio_trans vtrans;
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struct virtio_device vdev;
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struct virtio_blk_config blk_config;
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struct disk_image *disk;
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u32 features;
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@@ -72,7 +71,7 @@ void virtio_blk_complete(void *param, long len)
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mutex_unlock(&bdev->mutex);
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if (virtio_queue__should_signal(&bdev->vqs[queueid]))
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bdev->vtrans.trans_ops->signal_vq(req->kvm, &bdev->vtrans, queueid);
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bdev->vdev.ops->signal_vq(req->kvm, &bdev->vdev, queueid);
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}
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static void virtio_blk_do_io_request(struct kvm *kvm, struct blk_dev_req *req)
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@@ -230,10 +229,8 @@ static int virtio_blk__init_one(struct kvm *kvm, struct disk_image *disk)
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},
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};
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virtio_trans_init(&bdev->vtrans, VIRTIO_PCI);
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bdev->vtrans.trans_ops->init(kvm, &bdev->vtrans, bdev, PCI_DEVICE_ID_VIRTIO_BLK,
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VIRTIO_ID_BLOCK, PCI_CLASS_BLK);
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bdev->vtrans.virtio_ops = &blk_dev_virtio_ops;
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virtio_init(kvm, bdev, &bdev->vdev, &blk_dev_virtio_ops,
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VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_BLK, VIRTIO_ID_BLOCK, PCI_CLASS_BLK);
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list_add_tail(&bdev->list, &bdevs);
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+4
-9
@@ -11,7 +11,6 @@
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#include "kvm/threadpool.h"
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#include "kvm/irq.h"
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#include "kvm/guest_compat.h"
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#include "kvm/virtio-trans.h"
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#include <linux/virtio_console.h>
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#include <linux/virtio_ring.h>
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@@ -32,7 +31,7 @@
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struct con_dev {
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pthread_mutex_t mutex;
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struct virtio_trans vtrans;
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struct virtio_device vdev;
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struct virt_queue vqs[VIRTIO_CONSOLE_NUM_QUEUES];
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struct virtio_console_config config;
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u32 features;
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@@ -71,7 +70,7 @@ static void virtio_console__inject_interrupt_callback(struct kvm *kvm, void *par
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head = virt_queue__get_iov(vq, iov, &out, &in, kvm);
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len = term_getc_iov(CONSOLE_VIRTIO, iov, in, 0);
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virt_queue__set_used_elem(vq, head, len);
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cdev.vtrans.trans_ops->signal_vq(kvm, &cdev.vtrans, vq - cdev.vqs);
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cdev.vdev.ops->signal_vq(kvm, &cdev.vdev, vq - cdev.vqs);
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}
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mutex_unlock(&cdev.mutex);
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@@ -187,12 +186,8 @@ static struct virtio_ops con_dev_virtio_ops = (struct virtio_ops) {
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void virtio_console__init(struct kvm *kvm)
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{
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virtio_trans_init(&cdev.vtrans, VIRTIO_PCI);
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cdev.vtrans.trans_ops->init(kvm, &cdev.vtrans, &cdev, PCI_DEVICE_ID_VIRTIO_CONSOLE,
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VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
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cdev.vtrans.virtio_ops = &con_dev_virtio_ops;
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virtio_init(kvm, &cdev, &cdev.vdev, &con_dev_virtio_ops,
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VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_CONSOLE, VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
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if (compat_id != -1)
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compat_id = compat__add_message("virtio-console device was not detected",
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"While you have requested a virtio-console device, "
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+31
-2
@@ -1,11 +1,14 @@
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#include <linux/virtio_ring.h>
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#include <linux/types.h>
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#include <sys/uio.h>
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#include <stdlib.h>
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#include "kvm/barrier.h"
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#include "kvm/kvm.h"
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#include "kvm/virtio.h"
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#include "kvm/virtio-pci.h"
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#include "kvm/util.h"
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#include "kvm/kvm.h"
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struct vring_used_elem *virt_queue__set_used_elem(struct virt_queue *queue, u32 head, u32 len)
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{
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@@ -156,3 +159,29 @@ bool virtio_queue__should_signal(struct virt_queue *vq)
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return false;
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}
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int virtio_init(struct kvm *kvm, void *dev, struct virtio_device *vdev,
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struct virtio_ops *ops, enum virtio_trans trans,
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int device_id, int subsys_id, int class)
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{
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void *virtio;
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switch (trans) {
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case VIRTIO_PCI:
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virtio = calloc(sizeof(struct virtio_pci), 1);
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if (!virtio)
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return -ENOMEM;
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vdev->virtio = virtio;
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vdev->ops = ops;
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vdev->ops->signal_vq = virtio_pci__signal_vq;
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vdev->ops->signal_config = virtio_pci__signal_config;
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vdev->ops->init = virtio_pci__init;
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vdev->ops->exit = virtio_pci__exit;
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vdev->ops->init(kvm, dev, vdev, device_id, subsys_id, class);
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break;
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default:
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return -1;
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};
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return 0;
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}
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+6
-9
@@ -8,7 +8,6 @@
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#include "kvm/irq.h"
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#include "kvm/uip.h"
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#include "kvm/guest_compat.h"
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#include "kvm/virtio-trans.h"
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#include <linux/vhost.h>
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#include <linux/virtio_net.h>
|
||||
@@ -43,7 +42,7 @@ struct net_dev_operations {
|
||||
|
||||
struct net_dev {
|
||||
pthread_mutex_t mutex;
|
||||
struct virtio_trans vtrans;
|
||||
struct virtio_device vdev;
|
||||
struct list_head list;
|
||||
|
||||
struct virt_queue vqs[VIRTIO_NET_NUM_QUEUES];
|
||||
@@ -98,8 +97,8 @@ static void *virtio_net_rx_thread(void *p)
|
||||
|
||||
/* We should interrupt guest right now, otherwise latency is huge. */
|
||||
if (virtio_queue__should_signal(&ndev->vqs[VIRTIO_NET_RX_QUEUE]))
|
||||
ndev->vtrans.trans_ops->signal_vq(kvm, &ndev->vtrans,
|
||||
VIRTIO_NET_RX_QUEUE);
|
||||
ndev->vdev.ops->signal_vq(kvm, &ndev->vdev,
|
||||
VIRTIO_NET_RX_QUEUE);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -134,7 +133,7 @@ static void *virtio_net_tx_thread(void *p)
|
||||
}
|
||||
|
||||
if (virtio_queue__should_signal(&ndev->vqs[VIRTIO_NET_TX_QUEUE]))
|
||||
ndev->vtrans.trans_ops->signal_vq(kvm, &ndev->vtrans, VIRTIO_NET_TX_QUEUE);
|
||||
ndev->vdev.ops->signal_vq(kvm, &ndev->vdev, VIRTIO_NET_TX_QUEUE);
|
||||
}
|
||||
|
||||
pthread_exit(NULL);
|
||||
@@ -527,10 +526,8 @@ void virtio_net__init(const struct virtio_net_params *params)
|
||||
ndev->ops = &uip_ops;
|
||||
}
|
||||
|
||||
virtio_trans_init(&ndev->vtrans, VIRTIO_PCI);
|
||||
ndev->vtrans.trans_ops->init(kvm, &ndev->vtrans, ndev, PCI_DEVICE_ID_VIRTIO_NET,
|
||||
VIRTIO_ID_NET, PCI_CLASS_NET);
|
||||
ndev->vtrans.virtio_ops = &net_dev_virtio_ops;
|
||||
virtio_init(kvm, ndev, &ndev->vdev, &net_dev_virtio_ops,
|
||||
VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_NET, VIRTIO_ID_NET, PCI_CLASS_NET);
|
||||
|
||||
if (params->vhost)
|
||||
virtio_net__vhost_init(params->kvm, ndev);
|
||||
|
||||
+43
-54
@@ -6,39 +6,27 @@
|
||||
#include "kvm/irq.h"
|
||||
#include "kvm/virtio.h"
|
||||
#include "kvm/ioeventfd.h"
|
||||
#include "kvm/virtio-trans.h"
|
||||
|
||||
#include <linux/virtio_pci.h>
|
||||
#include <linux/byteorder.h>
|
||||
#include <string.h>
|
||||
|
||||
struct virtio_trans_ops *virtio_pci__get_trans_ops(void)
|
||||
{
|
||||
static struct virtio_trans_ops virtio_pci_trans = (struct virtio_trans_ops) {
|
||||
.signal_vq = virtio_pci__signal_vq,
|
||||
.signal_config = virtio_pci__signal_config,
|
||||
.init = virtio_pci__init,
|
||||
.uninit = virtio_pci__exit,
|
||||
};
|
||||
return &virtio_pci_trans;
|
||||
};
|
||||
|
||||
static void virtio_pci__ioevent_callback(struct kvm *kvm, void *param)
|
||||
{
|
||||
struct virtio_pci_ioevent_param *ioeventfd = param;
|
||||
struct virtio_pci *vpci = ioeventfd->vtrans->virtio;
|
||||
struct virtio_pci *vpci = ioeventfd->vdev->virtio;
|
||||
|
||||
ioeventfd->vtrans->virtio_ops->notify_vq(kvm, vpci->dev, ioeventfd->vq);
|
||||
ioeventfd->vdev->ops->notify_vq(kvm, vpci->dev, ioeventfd->vq);
|
||||
}
|
||||
|
||||
static int virtio_pci__init_ioeventfd(struct kvm *kvm, struct virtio_trans *vtrans, u32 vq)
|
||||
static int virtio_pci__init_ioeventfd(struct kvm *kvm, struct virtio_device *vdev, u32 vq)
|
||||
{
|
||||
struct ioevent ioevent;
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
int r;
|
||||
|
||||
vpci->ioeventfds[vq] = (struct virtio_pci_ioevent_param) {
|
||||
.vtrans = vtrans,
|
||||
.vdev = vdev,
|
||||
.vq = vq,
|
||||
};
|
||||
|
||||
@@ -56,8 +44,8 @@ static int virtio_pci__init_ioeventfd(struct kvm *kvm, struct virtio_trans *vtra
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
if (vtrans->virtio_ops->notify_vq_eventfd)
|
||||
vtrans->virtio_ops->notify_vq_eventfd(kvm, vpci->dev, vq, ioevent.fd);
|
||||
if (vdev->ops->notify_vq_eventfd)
|
||||
vdev->ops->notify_vq_eventfd(kvm, vpci->dev, vq, ioevent.fd);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -67,11 +55,11 @@ static inline bool virtio_pci__msix_enabled(struct virtio_pci *vpci)
|
||||
return vpci->pci_hdr.msix.ctrl & cpu_to_le16(PCI_MSIX_FLAGS_ENABLE);
|
||||
}
|
||||
|
||||
static bool virtio_pci__specific_io_in(struct kvm *kvm, struct virtio_trans *vtrans, u16 port,
|
||||
static bool virtio_pci__specific_io_in(struct kvm *kvm, struct virtio_device *vdev, u16 port,
|
||||
void *data, int size, int offset)
|
||||
{
|
||||
u32 config_offset;
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
int type = virtio__get_dev_specific_field(offset - 20,
|
||||
virtio_pci__msix_enabled(vpci),
|
||||
&config_offset);
|
||||
@@ -89,7 +77,7 @@ static bool virtio_pci__specific_io_in(struct kvm *kvm, struct virtio_trans *vtr
|
||||
} else if (type == VIRTIO_PCI_O_CONFIG) {
|
||||
u8 cfg;
|
||||
|
||||
cfg = vtrans->virtio_ops->get_config(kvm, vpci->dev, config_offset);
|
||||
cfg = vdev->ops->get_config(kvm, vpci->dev, config_offset);
|
||||
ioport__write8(data, cfg);
|
||||
return true;
|
||||
}
|
||||
@@ -101,25 +89,25 @@ static bool virtio_pci__io_in(struct ioport *ioport, struct kvm *kvm, u16 port,
|
||||
{
|
||||
unsigned long offset;
|
||||
bool ret = true;
|
||||
struct virtio_trans *vtrans;
|
||||
struct virtio_device *vdev;
|
||||
struct virtio_pci *vpci;
|
||||
u32 val;
|
||||
|
||||
vtrans = ioport->priv;
|
||||
vpci = vtrans->virtio;
|
||||
vdev = ioport->priv;
|
||||
vpci = vdev->virtio;
|
||||
offset = port - vpci->base_addr;
|
||||
|
||||
switch (offset) {
|
||||
case VIRTIO_PCI_HOST_FEATURES:
|
||||
val = vtrans->virtio_ops->get_host_features(kvm, vpci->dev);
|
||||
val = vdev->ops->get_host_features(kvm, vpci->dev);
|
||||
ioport__write32(data, val);
|
||||
break;
|
||||
case VIRTIO_PCI_QUEUE_PFN:
|
||||
val = vtrans->virtio_ops->get_pfn_vq(kvm, vpci->dev, vpci->queue_selector);
|
||||
val = vdev->ops->get_pfn_vq(kvm, vpci->dev, vpci->queue_selector);
|
||||
ioport__write32(data, val);
|
||||
break;
|
||||
case VIRTIO_PCI_QUEUE_NUM:
|
||||
val = vtrans->virtio_ops->get_size_vq(kvm, vpci->dev, vpci->queue_selector);
|
||||
val = vdev->ops->get_size_vq(kvm, vpci->dev, vpci->queue_selector);
|
||||
ioport__write16(data, val);
|
||||
break;
|
||||
case VIRTIO_PCI_STATUS:
|
||||
@@ -131,17 +119,17 @@ static bool virtio_pci__io_in(struct ioport *ioport, struct kvm *kvm, u16 port,
|
||||
vpci->isr = VIRTIO_IRQ_LOW;
|
||||
break;
|
||||
default:
|
||||
ret = virtio_pci__specific_io_in(kvm, vtrans, port, data, size, offset);
|
||||
ret = virtio_pci__specific_io_in(kvm, vdev, port, data, size, offset);
|
||||
break;
|
||||
};
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static bool virtio_pci__specific_io_out(struct kvm *kvm, struct virtio_trans *vtrans, u16 port,
|
||||
static bool virtio_pci__specific_io_out(struct kvm *kvm, struct virtio_device *vdev, u16 port,
|
||||
void *data, int size, int offset)
|
||||
{
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
u32 config_offset, gsi, vec;
|
||||
int type = virtio__get_dev_specific_field(offset - 20, virtio_pci__msix_enabled(vpci),
|
||||
&config_offset);
|
||||
@@ -159,15 +147,15 @@ static bool virtio_pci__specific_io_out(struct kvm *kvm, struct virtio_trans *vt
|
||||
|
||||
gsi = irq__add_msix_route(kvm, &vpci->msix_table[vec].msg);
|
||||
vpci->gsis[vpci->queue_selector] = gsi;
|
||||
if (vtrans->virtio_ops->notify_vq_gsi)
|
||||
vtrans->virtio_ops->notify_vq_gsi(kvm, vpci->dev,
|
||||
if (vdev->ops->notify_vq_gsi)
|
||||
vdev->ops->notify_vq_gsi(kvm, vpci->dev,
|
||||
vpci->queue_selector, gsi);
|
||||
break;
|
||||
};
|
||||
|
||||
return true;
|
||||
} else if (type == VIRTIO_PCI_O_CONFIG) {
|
||||
vtrans->virtio_ops->set_config(kvm, vpci->dev, *(u8 *)data, config_offset);
|
||||
vdev->ops->set_config(kvm, vpci->dev, *(u8 *)data, config_offset);
|
||||
|
||||
return true;
|
||||
}
|
||||
@@ -179,36 +167,36 @@ static bool virtio_pci__io_out(struct ioport *ioport, struct kvm *kvm, u16 port,
|
||||
{
|
||||
unsigned long offset;
|
||||
bool ret = true;
|
||||
struct virtio_trans *vtrans;
|
||||
struct virtio_device *vdev;
|
||||
struct virtio_pci *vpci;
|
||||
u32 val;
|
||||
|
||||
vtrans = ioport->priv;
|
||||
vpci = vtrans->virtio;
|
||||
vdev = ioport->priv;
|
||||
vpci = vdev->virtio;
|
||||
offset = port - vpci->base_addr;
|
||||
|
||||
switch (offset) {
|
||||
case VIRTIO_PCI_GUEST_FEATURES:
|
||||
val = ioport__read32(data);
|
||||
vtrans->virtio_ops->set_guest_features(kvm, vpci->dev, val);
|
||||
vdev->ops->set_guest_features(kvm, vpci->dev, val);
|
||||
break;
|
||||
case VIRTIO_PCI_QUEUE_PFN:
|
||||
val = ioport__read32(data);
|
||||
virtio_pci__init_ioeventfd(kvm, vtrans, vpci->queue_selector);
|
||||
vtrans->virtio_ops->init_vq(kvm, vpci->dev, vpci->queue_selector, val);
|
||||
virtio_pci__init_ioeventfd(kvm, vdev, vpci->queue_selector);
|
||||
vdev->ops->init_vq(kvm, vpci->dev, vpci->queue_selector, val);
|
||||
break;
|
||||
case VIRTIO_PCI_QUEUE_SEL:
|
||||
vpci->queue_selector = ioport__read16(data);
|
||||
break;
|
||||
case VIRTIO_PCI_QUEUE_NOTIFY:
|
||||
val = ioport__read16(data);
|
||||
vtrans->virtio_ops->notify_vq(kvm, vpci->dev, val);
|
||||
vdev->ops->notify_vq(kvm, vpci->dev, val);
|
||||
break;
|
||||
case VIRTIO_PCI_STATUS:
|
||||
vpci->status = ioport__read8(data);
|
||||
break;
|
||||
default:
|
||||
ret = virtio_pci__specific_io_out(kvm, vtrans, port, data, size, offset);
|
||||
ret = virtio_pci__specific_io_out(kvm, vdev, port, data, size, offset);
|
||||
break;
|
||||
};
|
||||
|
||||
@@ -240,9 +228,9 @@ static void callback_mmio_table(u64 addr, u8 *data, u32 len, u8 is_write, void *
|
||||
memcpy(data, table + addr - offset, len);
|
||||
}
|
||||
|
||||
int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_trans *vtrans, u32 vq)
|
||||
int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_device *vdev, u32 vq)
|
||||
{
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
int tbl = vpci->vq_vector[vq];
|
||||
|
||||
if (virtio_pci__msix_enabled(vpci)) {
|
||||
@@ -261,9 +249,9 @@ int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_trans *vtrans, u32 vq)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int virtio_pci__signal_config(struct kvm *kvm, struct virtio_trans *vtrans)
|
||||
int virtio_pci__signal_config(struct kvm *kvm, struct virtio_device *vdev)
|
||||
{
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
int tbl = vpci->config_vector;
|
||||
|
||||
if (virtio_pci__msix_enabled(vpci)) {
|
||||
@@ -283,22 +271,23 @@ int virtio_pci__signal_config(struct kvm *kvm, struct virtio_trans *vtrans)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int virtio_pci__init(struct kvm *kvm, struct virtio_trans *vtrans, void *dev,
|
||||
int device_id, int subsys_id, int class)
|
||||
int virtio_pci__init(struct kvm *kvm, void *dev, struct virtio_device *vdev,
|
||||
int device_id, int subsys_id, int class)
|
||||
{
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
u8 pin, line, ndev;
|
||||
int r;
|
||||
|
||||
vpci->dev = dev;
|
||||
vpci->msix_io_block = pci_get_io_space_block(PCI_IO_SIZE * 2);
|
||||
|
||||
r = ioport__register(IOPORT_EMPTY, &virtio_pci__io_ops, IOPORT_SIZE, vtrans);
|
||||
r = ioport__register(IOPORT_EMPTY, &virtio_pci__io_ops, IOPORT_SIZE, vdev);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
vpci->base_addr = (u16)r;
|
||||
r = kvm__register_mmio(kvm, vpci->msix_io_block, PCI_IO_SIZE, false, callback_mmio_table, vpci);
|
||||
r = kvm__register_mmio(kvm, vpci->msix_io_block, PCI_IO_SIZE, false,
|
||||
callback_mmio_table, vpci);
|
||||
if (r < 0)
|
||||
goto free_ioport;
|
||||
|
||||
@@ -365,9 +354,9 @@ free_ioport:
|
||||
return r;
|
||||
}
|
||||
|
||||
int virtio_pci__exit(struct kvm *kvm, struct virtio_trans *vtrans)
|
||||
int virtio_pci__exit(struct kvm *kvm, struct virtio_device *vdev)
|
||||
{
|
||||
struct virtio_pci *vpci = vtrans->virtio;
|
||||
struct virtio_pci *vpci = vdev->virtio;
|
||||
int i;
|
||||
|
||||
kvm__deregister_mmio(kvm, vpci->msix_io_block);
|
||||
@@ -377,4 +366,4 @@ int virtio_pci__exit(struct kvm *kvm, struct virtio_trans *vtrans)
|
||||
ioeventfd__del_event(vpci->base_addr + VIRTIO_PCI_QUEUE_NOTIFY, i);
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
+5
-9
@@ -7,7 +7,6 @@
|
||||
#include "kvm/kvm.h"
|
||||
#include "kvm/threadpool.h"
|
||||
#include "kvm/guest_compat.h"
|
||||
#include "kvm/virtio-trans.h"
|
||||
|
||||
#include <linux/virtio_ring.h>
|
||||
#include <linux/virtio_rng.h>
|
||||
@@ -30,7 +29,7 @@ struct rng_dev_job {
|
||||
|
||||
struct rng_dev {
|
||||
struct list_head list;
|
||||
struct virtio_trans vtrans;
|
||||
struct virtio_device vdev;
|
||||
|
||||
int fd;
|
||||
|
||||
@@ -87,7 +86,7 @@ static void virtio_rng_do_io(struct kvm *kvm, void *param)
|
||||
while (virt_queue__available(vq))
|
||||
virtio_rng_do_io_request(kvm, rdev, vq);
|
||||
|
||||
rdev->vtrans.trans_ops->signal_vq(kvm, &rdev->vtrans, vq - rdev->vqs);
|
||||
rdev->vdev.ops->signal_vq(kvm, &rdev->vdev, vq - rdev->vqs);
|
||||
}
|
||||
|
||||
static int init_vq(struct kvm *kvm, void *dev, u32 vq, u32 pfn)
|
||||
@@ -164,14 +163,11 @@ int virtio_rng__init(struct kvm *kvm)
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
virtio_trans_init(&rdev->vtrans, VIRTIO_PCI);
|
||||
r = rdev->vtrans.trans_ops->init(kvm, &rdev->vtrans, rdev, PCI_DEVICE_ID_VIRTIO_RNG,
|
||||
VIRTIO_ID_RNG, PCI_CLASS_RNG);
|
||||
r = virtio_init(kvm, rdev, &rdev->vdev, &rng_dev_virtio_ops,
|
||||
VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_RNG, VIRTIO_ID_RNG, PCI_CLASS_RNG);
|
||||
if (r < 0)
|
||||
goto cleanup;
|
||||
|
||||
rdev->vtrans.virtio_ops = &rng_dev_virtio_ops;
|
||||
|
||||
list_add_tail(&rdev->list, &rdevs);
|
||||
|
||||
if (compat_id != -1)
|
||||
@@ -195,7 +191,7 @@ int virtio_rng__exit(struct kvm *kvm)
|
||||
|
||||
list_for_each_entry_safe(rdev, tmp, &rdevs, list) {
|
||||
list_del(&rdev->list);
|
||||
rdev->vtrans.trans_ops->uninit(kvm, &rdev->vtrans);
|
||||
rdev->vdev.ops->exit(kvm, &rdev->vdev);
|
||||
free(rdev);
|
||||
}
|
||||
|
||||
|
||||
@@ -1,24 +0,0 @@
|
||||
#include "kvm/virtio-trans.h"
|
||||
|
||||
#include "kvm/virtio-pci.h"
|
||||
#include "kvm/util.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
int virtio_trans_init(struct virtio_trans *vtrans, enum virtio_trans_type type)
|
||||
{
|
||||
void *trans;
|
||||
|
||||
switch (type) {
|
||||
case VIRTIO_PCI:
|
||||
trans = calloc(sizeof(struct virtio_pci), 1);
|
||||
if (!trans)
|
||||
return -ENOMEM;
|
||||
vtrans->virtio = trans;
|
||||
vtrans->trans_ops = virtio_pci__get_trans_ops();
|
||||
default:
|
||||
return -1;
|
||||
};
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user