Re: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device

qemu-devel

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device

From:	Yongji Xie
Subject:	Re: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device
Date:	Mon, 12 Apr 2021 15:51:32 +0800

On Mon, Apr 12, 2021 at 3:14 PM Jason Wang <jasowang@redhat.com> wrote:
>
>
> 在 2021/4/9 下午4:17, Yongji Xie 写道:
> > On Fri, Apr 9, 2021 at 2:02 PM Jason Wang <jasowang@redhat.com> wrote:
> >>
> >> 在 2021/4/8 下午6:12, Xie Yongji 写道:
> >>> This commit introduces a new vhost-vdpa block device, which
> >>> will set up a vDPA device specified by a "vdpa-dev" parameter,
> >>> something like:
> >>>
> >>> qemu-system-x86_64 \
> >>>       -device vhost-vdpa-blk-pci,vdpa-dev=/dev/vhost-vdpa-0
> >>>
> >>> Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
> >>> ---
> >>>    hw/block/Kconfig                   |   5 +
> >>>    hw/block/meson.build               |   1 +
> >>>    hw/block/vhost-vdpa-blk.c          | 227 +++++++++++++++++++++++++++++
> >>>    hw/virtio/meson.build              |   1 +
> >>>    hw/virtio/vhost-vdpa-blk-pci.c     | 101 +++++++++++++
> >>>    include/hw/virtio/vhost-vdpa-blk.h |  30 ++++
> >>>    6 files changed, 365 insertions(+)
> >>>    create mode 100644 hw/block/vhost-vdpa-blk.c
> >>>    create mode 100644 hw/virtio/vhost-vdpa-blk-pci.c
> >>>    create mode 100644 include/hw/virtio/vhost-vdpa-blk.h
> >>>
> >>> diff --git a/hw/block/Kconfig b/hw/block/Kconfig
> >>> index 4fcd152166..4615a2c116 100644
> >>> --- a/hw/block/Kconfig
> >>> +++ b/hw/block/Kconfig
> >>> @@ -41,5 +41,10 @@ config VHOST_USER_BLK
> >>>        default y if VIRTIO_PCI
> >>>        depends on VIRTIO && VHOST_USER && LINUX
> >>>
> >>> +config VHOST_VDPA_BLK
> >>> +    bool
> >>> +    default y if VIRTIO_PCI
> >>> +    depends on VIRTIO && VHOST_VDPA && LINUX
> >>> +
> >>>    config SWIM
> >>>        bool
> >>> diff --git a/hw/block/meson.build b/hw/block/meson.build
> >>> index 5862bda4cb..98f1fc330a 100644
> >>> --- a/hw/block/meson.build
> >>> +++ b/hw/block/meson.build
> >>> @@ -17,5 +17,6 @@ softmmu_ss.add(when: 'CONFIG_NVME_PCI', if_true: 
> >>> files('nvme.c', 'nvme-ns.c', 'n
> >>>
> >>>    specific_ss.add(when: 'CONFIG_VIRTIO_BLK', if_true: 
> >>> files('virtio-blk.c'))
> >>>    specific_ss.add(when: 'CONFIG_VHOST_USER_BLK', if_true: 
> >>> files('vhost-blk-common.c', 'vhost-user-blk.c'))
> >>> +specific_ss.add(when: 'CONFIG_VHOST_VDPA_BLK', if_true: 
> >>> files('vhost-blk-common.c', 'vhost-vdpa-blk.c'))
> >>>
> >>>    subdir('dataplane')
> >>> diff --git a/hw/block/vhost-vdpa-blk.c b/hw/block/vhost-vdpa-blk.c
> >>> new file mode 100644
> >>> index 0000000000..d5cbbbba10
> >>> --- /dev/null
> >>> +++ b/hw/block/vhost-vdpa-blk.c
> >>> @@ -0,0 +1,227 @@
> >>> +/*
> >>> + * vhost-vdpa-blk host device
> >>> + *
> >>> + * Copyright (C) 2021 Bytedance Inc. and/or its affiliates. All rights 
> >>> reserved.
> >>> + *
> >>> + * Author:
> >>> + *   Xie Yongji <xieyongji@bytedance.com>
> >>> + *
> >>> + * This work is licensed under the terms of the GNU GPL, version 2.  See
> >>> + * the COPYING file in the top-level directory.
> >>> + *
> >>> + */
> >>> +
> >>> +#include "qemu/osdep.h"
> >>> +#include "qapi/error.h"
> >>> +#include "qemu/error-report.h"
> >>> +#include "qemu/cutils.h"
> >>> +#include "hw/qdev-core.h"
> >>> +#include "hw/qdev-properties.h"
> >>> +#include "hw/qdev-properties-system.h"
> >>> +#include "hw/virtio/vhost.h"
> >>> +#include "hw/virtio/vhost-vdpa-blk.h"
> >>> +#include "hw/virtio/virtio.h"
> >>> +#include "hw/virtio/virtio-bus.h"
> >>> +#include "hw/virtio/virtio-access.h"
> >>> +#include "sysemu/sysemu.h"
> >>> +#include "sysemu/runstate.h"
> >>> +
> >>> +static const int vdpa_feature_bits[] = {
> >>> +    VIRTIO_BLK_F_SIZE_MAX,
> >>> +    VIRTIO_BLK_F_SEG_MAX,
> >>> +    VIRTIO_BLK_F_GEOMETRY,
> >>> +    VIRTIO_BLK_F_BLK_SIZE,
> >>> +    VIRTIO_BLK_F_TOPOLOGY,
> >>> +    VIRTIO_BLK_F_MQ,
> >>> +    VIRTIO_BLK_F_RO,
> >>> +    VIRTIO_BLK_F_FLUSH,
> >>> +    VIRTIO_BLK_F_CONFIG_WCE,
> >>> +    VIRTIO_BLK_F_DISCARD,
> >>> +    VIRTIO_BLK_F_WRITE_ZEROES,
> >>> +    VIRTIO_F_VERSION_1,
> >>> +    VIRTIO_RING_F_INDIRECT_DESC,
> >>> +    VIRTIO_RING_F_EVENT_IDX,
> >>> +    VIRTIO_F_NOTIFY_ON_EMPTY,
> >>> +    VHOST_INVALID_FEATURE_BIT
> >>> +};
> >>> +
> >>> +static void vhost_vdpa_blk_set_status(VirtIODevice *vdev, uint8_t status)
> >>> +{
> >>> +    VHostVdpaBlk *s = VHOST_VDPA_BLK(vdev);
> >>> +    VHostBlkCommon *vbc = VHOST_BLK_COMMON(s);
> >>> +    bool should_start = virtio_device_started(vdev, status);
> >>> +    int ret;
> >>> +
> >>> +    if (!vdev->vm_running) {
> >>> +        should_start = false;
> >>> +    }
> >>> +
> >>> +    if (vbc->dev.started == should_start) {
> >>> +        return;
> >>> +    }
> >>> +
> >>> +    if (should_start) {
> >>> +        ret = vhost_blk_common_start(vbc);
> >>> +        if (ret < 0) {
> >>> +            error_report("vhost-vdpa-blk: vhost start failed: %s",
> >>> +                         strerror(-ret));
> >>> +        }
> >>> +    } else {
> >>> +        vhost_blk_common_stop(vbc);
> >>> +    }
> >>> +
> >>> +}
> >>> +
> >>> +static void vhost_vdpa_blk_handle_output(VirtIODevice *vdev, VirtQueue 
> >>> *vq)
> >>> +{
> >>> +    VHostVdpaBlk *s = VHOST_VDPA_BLK(vdev);
> >>> +    VHostBlkCommon *vbc = VHOST_BLK_COMMON(s);
> >>> +    int i, ret;
> >>
> >> I believe we should never reach here, the backend should poll the
> >> notifier and trigger vq handler there after DRIVER_OK?
> >>
> > Some legacy virtio-blk driver (virtio 0.9) will do that. Kick before
> > set DRIVER_OK.
>
>
> Ok, I see, but any reason:
>
> 1) we need start vhost-blk
> 2) the relay is not done per vq but per device?
>

We need to make vhost backend process I/Os. Otherwise, guest will hang
if we don't start vhost-blk here.

>
> >
> >>> +
> >>> +    if (!vdev->start_on_kick) {
> >>> +        return;
> >>> +    }
> >>> +
> >>> +    if (vbc->dev.started) {
> >>> +        return;
> >>> +    }
> >>> +
> >>> +    ret = vhost_blk_common_start(vbc);
> >>> +    if (ret < 0) {
> >>> +        error_report("vhost-vdpa-blk: vhost start failed: %s",
> >>> +                     strerror(-ret));
> >>> +        return;
> >>> +    }
> >>> +
> >>> +    /* Kick right away to begin processing requests already in vring */
> >>> +    for (i = 0; i < vbc->dev.nvqs; i++) {
> >>> +        VirtQueue *kick_vq = virtio_get_queue(vdev, i);
> >>> +
> >>> +        if (!virtio_queue_get_desc_addr(vdev, i)) {
> >>> +            continue;
> >>> +        }
> >>> +        event_notifier_set(virtio_queue_get_host_notifier(kick_vq));
> >>> +    }
> >>> +}
> >>> +
> >>> +static void vhost_vdpa_blk_device_realize(DeviceState *dev, Error **errp)
> >>> +{
> >>> +    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
> >>> +    VHostVdpaBlk *s = VHOST_VDPA_BLK(vdev);
> >>> +    VHostBlkCommon *vbc = VHOST_BLK_COMMON(s);
> >>> +    Error *err = NULL;
> >>> +    int ret;
> >>> +
> >>> +    s->vdpa.device_fd = qemu_open_old(s->vdpa_dev, O_RDWR);
> >>> +    if (s->vdpa.device_fd == -1) {
> >>> +        error_setg(errp, "vhost-vdpa-blk: open %s failed: %s",
> >>> +                   s->vdpa_dev, strerror(errno));
> >>> +        return;
> >>> +    }
> >>> +
> >>> +    vhost_blk_common_realize(vbc, vhost_vdpa_blk_handle_output, &err);
> >>> +    if (err != NULL) {
> >>> +        error_propagate(errp, err);
> >>> +        goto blk_err;
> >>> +    }
> >>> +
> >>> +    vbc->vhost_vqs = g_new0(struct vhost_virtqueue, vbc->num_queues);
> >>> +    vbc->dev.nvqs = vbc->num_queues;
> >>> +    vbc->dev.vqs = vbc->vhost_vqs;
> >>> +    vbc->dev.vq_index = 0;
> >>> +    vbc->dev.backend_features = 0;
> >>> +    vbc->started = false;
> >>> +
> >>> +    vhost_dev_set_config_notifier(&vbc->dev, &blk_ops);
> >>> +
> >>> +    ret = vhost_dev_init(&vbc->dev, &s->vdpa, VHOST_BACKEND_TYPE_VDPA, 
> >>> 0);
> >>> +    if (ret < 0) {
> >>> +        error_setg(errp, "vhost-vdpa-blk: vhost initialization failed: 
> >>> %s",
> >>> +                   strerror(-ret));
> >>> +        goto init_err;
> >>> +    }
> >>> +
> >>> +    ret = vhost_dev_get_config(&vbc->dev, (uint8_t *)&vbc->blkcfg,
> >>> +                               sizeof(struct virtio_blk_config));
> >>> +    if (ret < 0) {
> >>> +        error_setg(errp, "vhost-vdpa-blk: get block config failed");
> >>> +        goto config_err;
> >>> +    }
> >>> +
> >>> +    return;
> >>> +config_err:
> >>> +    vhost_dev_cleanup(&vbc->dev);
> >>> +init_err:
> >>> +    vhost_blk_common_unrealize(vbc);
> >>> +blk_err:
> >>> +    close(s->vdpa.device_fd);
> >>> +}
> >>> +
> >>> +static void vhost_vdpa_blk_device_unrealize(DeviceState *dev)
> >>> +{
> >>> +    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
> >>> +    VHostVdpaBlk *s = VHOST_VDPA_BLK(dev);
> >>> +    VHostBlkCommon *vbc = VHOST_BLK_COMMON(s);
> >>> +
> >>> +    virtio_set_status(vdev, 0);
> >>> +    vhost_dev_cleanup(&vbc->dev);
> >>> +    vhost_blk_common_unrealize(vbc);
> >>> +    close(s->vdpa.device_fd);
> >>> +}
> >>> +
> >>> +static void vhost_vdpa_blk_instance_init(Object *obj)
> >>> +{
> >>> +    VHostBlkCommon *vbc = VHOST_BLK_COMMON(obj);
> >>> +
> >>> +    vbc->feature_bits = vdpa_feature_bits;
> >>> +
> >>> +    device_add_bootindex_property(obj, &vbc->bootindex, "bootindex",
> >>> +                                  "/disk@0,0", DEVICE(obj));
> >>> +}
> >>> +
> >>> +static const VMStateDescription vmstate_vhost_vdpa_blk = {
> >>> +    .name = "vhost-vdpa-blk",
> >>> +    .minimum_version_id = 1,
> >>> +    .version_id = 1,
> >>> +    .fields = (VMStateField[]) {
> >>> +        VMSTATE_VIRTIO_DEVICE,
> >>> +        VMSTATE_END_OF_LIST()
> >>> +    },
> >>> +};
> >>> +
> >>> +static Property vhost_vdpa_blk_properties[] = {
> >>> +    DEFINE_PROP_STRING("vdpa-dev", VHostVdpaBlk, vdpa_dev),
> >>> +    DEFINE_PROP_UINT16("num-queues", VHostBlkCommon, num_queues,
> >>> +                       VHOST_BLK_AUTO_NUM_QUEUES),
> >>> +    DEFINE_PROP_UINT32("queue-size", VHostBlkCommon, queue_size, 256),
> >>> +    DEFINE_PROP_BIT("config-wce", VHostBlkCommon, config_wce, 0, true),
> >>> +    DEFINE_PROP_END_OF_LIST(),
> >>> +};
> >>> +
> >>> +static void vhost_vdpa_blk_class_init(ObjectClass *klass, void *data)
> >>> +{
> >>> +    DeviceClass *dc = DEVICE_CLASS(klass);
> >>> +    VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
> >>> +
> >>> +    device_class_set_props(dc, vhost_vdpa_blk_properties);
> >>> +    dc->vmsd = &vmstate_vhost_vdpa_blk;
> >>> +    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
> >>> +    vdc->realize = vhost_vdpa_blk_device_realize;
> >>> +    vdc->unrealize = vhost_vdpa_blk_device_unrealize;
> >>> +    vdc->set_status = vhost_vdpa_blk_set_status;
> >>> +}
> >>> +
> >>> +static const TypeInfo vhost_vdpa_blk_info = {
> >>> +    .name = TYPE_VHOST_VDPA_BLK,
> >>> +    .parent = TYPE_VHOST_BLK_COMMON,
> >>> +    .instance_size = sizeof(VHostVdpaBlk),
> >>> +    .instance_init = vhost_vdpa_blk_instance_init,
> >>> +    .class_init = vhost_vdpa_blk_class_init,
> >>> +};
> >>> +
> >>> +static void virtio_register_types(void)
> >>> +{
> >>> +    type_register_static(&vhost_vdpa_blk_info);
> >>> +}
> >>> +
> >>> +type_init(virtio_register_types)
> >>> diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build
> >>> index fbff9bc9d4..f02bea65a2 100644
> >>> --- a/hw/virtio/meson.build
> >>> +++ b/hw/virtio/meson.build
> >>> @@ -30,6 +30,7 @@ virtio_pci_ss = ss.source_set()
> >>>    virtio_pci_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: 
> >>> files('vhost-vsock-pci.c'))
> >>>    virtio_pci_ss.add(when: 'CONFIG_VHOST_USER_VSOCK', if_true: 
> >>> files('vhost-user-vsock-pci.c'))
> >>>    virtio_pci_ss.add(when: 'CONFIG_VHOST_USER_BLK', if_true: 
> >>> files('vhost-user-blk-pci.c'))
> >>> +virtio_pci_ss.add(when: 'CONFIG_VHOST_VDPA_BLK', if_true: 
> >>> files('vhost-vdpa-blk-pci.c'))
> >>>    virtio_pci_ss.add(when: 'CONFIG_VHOST_USER_INPUT', if_true: 
> >>> files('vhost-user-input-pci.c'))
> >>>    virtio_pci_ss.add(when: 'CONFIG_VHOST_USER_SCSI', if_true: 
> >>> files('vhost-user-scsi-pci.c'))
> >>>    virtio_pci_ss.add(when: 'CONFIG_VHOST_SCSI', if_true: 
> >>> files('vhost-scsi-pci.c'))
> >>> diff --git a/hw/virtio/vhost-vdpa-blk-pci.c 
> >>> b/hw/virtio/vhost-vdpa-blk-pci.c
> >>> new file mode 100644
> >>> index 0000000000..976c47fb4f
> >>> --- /dev/null
> >>> +++ b/hw/virtio/vhost-vdpa-blk-pci.c
> >>> @@ -0,0 +1,101 @@
> >>> +/*
> >>> + * vhost-vdpa-blk PCI Bindings
> >>> + *
> >>> + * Copyright (C) 2021 Bytedance Inc. and/or its affiliates. All rights 
> >>> reserved.
> >>> + *
> >>> + * Author:
> >>> + *   Xie Yongji <xieyongji@bytedance.com>
> >>> + *
> >>> + * This work is licensed under the terms of the GNU GPL, version 2.  See
> >>> + * the COPYING file in the top-level directory.
> >>> + *
> >>> + */
> >>> +
> >>> +#include "qemu/osdep.h"
> >>> +#include "standard-headers/linux/virtio_pci.h"
> >>> +#include "hw/virtio/virtio.h"
> >>> +#include "hw/virtio/vhost-vdpa-blk.h"
> >>> +#include "hw/pci/pci.h"
> >>> +#include "hw/qdev-properties.h"
> >>> +#include "qapi/error.h"
> >>> +#include "qemu/error-report.h"
> >>> +#include "qemu/module.h"
> >>> +#include "virtio-pci.h"
> >>> +#include "qom/object.h"
> >>> +
> >>> +typedef struct VHostVdpaBlkPCI VHostVdpaBlkPCI;
> >>> +
> >>> +#define TYPE_VHOST_VDPA_BLK_PCI "vhost-vdpa-blk-pci-base"
> >>> +DECLARE_INSTANCE_CHECKER(VHostVdpaBlkPCI, VHOST_VDPA_BLK_PCI,
> >>> +                         TYPE_VHOST_VDPA_BLK_PCI)
> >>> +
> >>> +struct VHostVdpaBlkPCI {
> >>> +    VirtIOPCIProxy parent_obj;
> >>> +    VHostVdpaBlk vdev;
> >>> +};
> >>> +
> >>> +static Property vhost_vdpa_blk_pci_properties[] = {
> >>> +    DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
> >>> +    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
> >>> +                       DEV_NVECTORS_UNSPECIFIED),
> >>> +    DEFINE_PROP_END_OF_LIST(),
> >>> +};
> >>> +
> >>> +static void vhost_vdpa_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error 
> >>> **errp)
> >>> +{
> >>> +    VHostVdpaBlkPCI *dev = VHOST_VDPA_BLK_PCI(vpci_dev);
> >>> +    DeviceState *vdev = DEVICE(&dev->vdev);
> >>> +    VHostBlkCommon *vbc = VHOST_BLK_COMMON(&dev->vdev);
> >>> +
> >>> +    if (vbc->num_queues == VHOST_BLK_AUTO_NUM_QUEUES) {
> >>> +        vbc->num_queues = virtio_pci_optimal_num_queues(0);
> >>> +    }
> >>> +
> >>> +    if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
> >>> +        vpci_dev->nvectors = vbc->num_queues + 1;
> >>> +    }
> >>> +
> >>> +    qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
> >>> +}
> >>> +
> >>> +static void vhost_vdpa_blk_pci_class_init(ObjectClass *klass, void *data)
> >>> +{
> >>> +    DeviceClass *dc = DEVICE_CLASS(klass);
> >>> +    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
> >>> +    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
> >>> +
> >>> +    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
> >>> +    device_class_set_props(dc, vhost_vdpa_blk_pci_properties);
> >>> +    k->realize = vhost_vdpa_blk_pci_realize;
> >>> +    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
> >>> +    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK;
> >>> +    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
> >>> +    pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
> >>> +}
> >>> +
> >>> +static void vhost_vdpa_blk_pci_instance_init(Object *obj)
> >>> +{
> >>> +    VHostVdpaBlkPCI *dev = VHOST_VDPA_BLK_PCI(obj);
> >>> +
> >>> +    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
> >>> +                                TYPE_VHOST_VDPA_BLK);
> >>> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> >>> +                              "bootindex");
> >>> +}
> >>> +
> >>> +static const VirtioPCIDeviceTypeInfo vhost_vdpa_blk_pci_info = {
> >>> +    .base_name               = TYPE_VHOST_VDPA_BLK_PCI,
> >>> +    .generic_name            = "vhost-vdpa-blk-pci",
> >>> +    .transitional_name       = "vhost-vdpa-blk-pci-transitional",
> >>> +    .non_transitional_name   = "vhost-vdpa-blk-pci-non-transitional",
> >>> +    .instance_size  = sizeof(VHostVdpaBlkPCI),
> >>> +    .instance_init  = vhost_vdpa_blk_pci_instance_init,
> >>> +    .class_init     = vhost_vdpa_blk_pci_class_init,
> >>> +};
> >>> +
> >>> +static void vhost_vdpa_blk_pci_register(void)
> >>> +{
> >>> +    virtio_pci_types_register(&vhost_vdpa_blk_pci_info);
> >>> +}
> >>
> >> I wonder how could we use virtio-mmio for vDPA block here.
> >>
> > Use something like:
> >
> > -device vhost-vdpa-blk,vdpa-dev=/dev/vhost-vdpa-0 ?
>
>
> Something like this, making vDPA indepedent for a specific bus is a
> great advantage.
>

Yes, and I think we already support that.

Thanks,
Yongji

[Prev in Thread]

Current Thread

[Next in Thread]

Re: [PATCH 1/3] vhost-vdpa: Remove redundant declaration of address_space_memory, (continued)
- [PATCH 2/3] vhost-blk: Add vhost-blk-common abstraction, Xie Yongji, 2021/04/08
  - Re: [PATCH 2/3] vhost-blk: Add vhost-blk-common abstraction, Raphael Norwitz, 2021/04/08
    - Re: Re: [PATCH 2/3] vhost-blk: Add vhost-blk-common abstraction, Yongji Xie, 2021/04/08
  - Re: [PATCH 2/3] vhost-blk: Add vhost-blk-common abstraction, Stefan Hajnoczi, 2021/04/26
    - Re: Re: [PATCH 2/3] vhost-blk: Add vhost-blk-common abstraction, Yongji Xie, 2021/04/27
- [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Xie Yongji, 2021/04/08
  - Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Jason Wang, 2021/04/09
    - Re: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Yongji Xie, 2021/04/09
    - Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Jason Wang, 2021/04/12
    - Re: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Yongji Xie <=
  - Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Stefan Hajnoczi, 2021/04/26
    - Re: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device, Yongji Xie, 2021/04/27
- Re: [PATCH 0/3] Introduce vhost-vdpa block device, Stefan Hajnoczi, 2021/04/26
  - Re: Re: [PATCH 0/3] Introduce vhost-vdpa block device, Yongji Xie, 2021/04/27
    - Re: Re: [PATCH 0/3] Introduce vhost-vdpa block device, Stefan Hajnoczi, 2021/04/27
    - Re: Re: Re: [PATCH 0/3] Introduce vhost-vdpa block device, Yongji Xie, 2021/04/28
    - Re: [PATCH 0/3] Introduce vhost-vdpa block device, Stefano Garzarella, 2021/04/28

Prev by Date: [PATCH] target/i386: Add CPU model versions supporting 'xsaves'
Next by Date: Re: [PATCH v5 3/6] virtio:add support in configure interrupt
Previous by thread: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device
Next by thread: Re: [PATCH 3/3] vhost-vdpa-blk: Introduce vhost-vdpa-blk host device
Index(es):
- Date
- Thread