diff mbox series

vhost-user-fs: add the "bootindex" property

Message ID 20210104132401.5100-1-lersek@redhat.com (mailing list archive)
State New, archived
Headers show
Series vhost-user-fs: add the "bootindex" property | expand

Commit Message

Laszlo Ersek Jan. 4, 2021, 1:24 p.m. UTC
virtio-fs qualifies as a bootable device minimally under OVMF, but
currently the necessary "bootindex" property is missing (fw_cfg kernel
boot notwithstanding).

Add the property. For completeness, add it to the CCW device as well;
other virtio-ccw devices seem to have "bootindex" properties too.

Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
"bootorder" fw_cfg file:

  /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0

Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-s390x@nongnu.org
Cc: virtio-fs@redhat.com
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 include/hw/virtio/vhost-user-fs.h |  1 +
 hw/s390x/vhost-user-fs-ccw.c      |  2 ++
 hw/virtio/vhost-user-fs-pci.c     |  2 ++
 hw/virtio/vhost-user-fs.c         | 10 ++++++++++
 4 files changed, 15 insertions(+)

Comments

Laszlo Ersek Jan. 11, 2021, 8:50 a.m. UTC | #1
Ping

On 01/04/21 14:24, Laszlo Ersek wrote:
> virtio-fs qualifies as a bootable device minimally under OVMF, but
> currently the necessary "bootindex" property is missing (fw_cfg kernel
> boot notwithstanding).
> 
> Add the property. For completeness, add it to the CCW device as well;
> other virtio-ccw devices seem to have "bootindex" properties too.
> 
> Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
> "bootorder" fw_cfg file:
> 
>   /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0
> 
> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: Halil Pasic <pasic@linux.ibm.com>
> Cc: Stefan Hajnoczi <stefanha@redhat.com>
> Cc: qemu-s390x@nongnu.org
> Cc: virtio-fs@redhat.com
> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
> ---
>  include/hw/virtio/vhost-user-fs.h |  1 +
>  hw/s390x/vhost-user-fs-ccw.c      |  2 ++
>  hw/virtio/vhost-user-fs-pci.c     |  2 ++
>  hw/virtio/vhost-user-fs.c         | 10 ++++++++++
>  4 files changed, 15 insertions(+)
> 
> diff --git a/include/hw/virtio/vhost-user-fs.h b/include/hw/virtio/vhost-user-fs.h
> index 698575277101..0d62834c2510 100644
> --- a/include/hw/virtio/vhost-user-fs.h
> +++ b/include/hw/virtio/vhost-user-fs.h
> @@ -39,6 +39,7 @@ struct VHostUserFS {
>      VhostUserState vhost_user;
>      VirtQueue **req_vqs;
>      VirtQueue *hiprio_vq;
> +    int32_t bootindex;
>  
>      /*< public >*/
>  };
> diff --git a/hw/s390x/vhost-user-fs-ccw.c b/hw/s390x/vhost-user-fs-ccw.c
> index 6c6f26929301..474e97e937b8 100644
> --- a/hw/s390x/vhost-user-fs-ccw.c
> +++ b/hw/s390x/vhost-user-fs-ccw.c
> @@ -47,6 +47,8 @@ static void vhost_user_fs_ccw_instance_init(Object *obj)
>      ccw_dev->force_revision_1 = true;
>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>                                  TYPE_VHOST_USER_FS);
> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> +                              "bootindex");
>  }
>  
>  static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
> diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c
> index 8bb389bd282a..2ed8492b3fa3 100644
> --- a/hw/virtio/vhost-user-fs-pci.c
> +++ b/hw/virtio/vhost-user-fs-pci.c
> @@ -68,6 +68,8 @@ static void vhost_user_fs_pci_instance_init(Object *obj)
>  
>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>                                  TYPE_VHOST_USER_FS);
> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> +                              "bootindex");
>  }
>  
>  static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
> diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
> index ed036ad9c13f..ac4fc34b36a2 100644
> --- a/hw/virtio/vhost-user-fs.c
> +++ b/hw/virtio/vhost-user-fs.c
> @@ -22,6 +22,7 @@
>  #include "qemu/error-report.h"
>  #include "hw/virtio/vhost-user-fs.h"
>  #include "monitor/monitor.h"
> +#include "sysemu/sysemu.h"
>  
>  static void vuf_get_config(VirtIODevice *vdev, uint8_t *config)
>  {
> @@ -279,6 +280,14 @@ static Property vuf_properties[] = {
>      DEFINE_PROP_END_OF_LIST(),
>  };
>  
> +static void vuf_instance_init(Object *obj)
> +{
> +    VHostUserFS *fs = VHOST_USER_FS(obj);
> +
> +    device_add_bootindex_property(obj, &fs->bootindex, "bootindex",
> +                                  "/filesystem@0", DEVICE(obj));
> +}
> +
>  static void vuf_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> @@ -300,6 +309,7 @@ static const TypeInfo vuf_info = {
>      .name = TYPE_VHOST_USER_FS,
>      .parent = TYPE_VIRTIO_DEVICE,
>      .instance_size = sizeof(VHostUserFS),
> +    .instance_init = vuf_instance_init,
>      .class_init = vuf_class_init,
>  };
>  
>
Christian Borntraeger Jan. 11, 2021, 9:46 a.m. UTC | #2
On 04.01.21 14:24, Laszlo Ersek wrote:
> virtio-fs qualifies as a bootable device minimally under OVMF, but
> currently the necessary "bootindex" property is missing (fw_cfg kernel
> boot notwithstanding).
> 
> Add the property. For completeness, add it to the CCW device as well;
> other virtio-ccw devices seem to have "bootindex" properties too.

Currently we do not have boot support for virtiofs on s390x (ccw)
Not sure if it is better if we should add the property now or whenever
boot support is implemented. 
As of today we do have bootindex for block and net. Maybe it is better
to defer bootindex for virtio-fs-ccw until we can boot from it? In
that way management software can detect if this is bootable or not?

> 
> Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
> "bootorder" fw_cfg file:
> 
>   /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0
> 
> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: Halil Pasic <pasic@linux.ibm.com>
> Cc: Stefan Hajnoczi <stefanha@redhat.com>
> Cc: qemu-s390x@nongnu.org
> Cc: virtio-fs@redhat.com
> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
> ---
>  include/hw/virtio/vhost-user-fs.h |  1 +
>  hw/s390x/vhost-user-fs-ccw.c      |  2 ++
>  hw/virtio/vhost-user-fs-pci.c     |  2 ++
>  hw/virtio/vhost-user-fs.c         | 10 ++++++++++
>  4 files changed, 15 insertions(+)
> 
> diff --git a/include/hw/virtio/vhost-user-fs.h b/include/hw/virtio/vhost-user-fs.h
> index 698575277101..0d62834c2510 100644
> --- a/include/hw/virtio/vhost-user-fs.h
> +++ b/include/hw/virtio/vhost-user-fs.h
> @@ -39,6 +39,7 @@ struct VHostUserFS {
>      VhostUserState vhost_user;
>      VirtQueue **req_vqs;
>      VirtQueue *hiprio_vq;
> +    int32_t bootindex;
>  
>      /*< public >*/
>  };
> diff --git a/hw/s390x/vhost-user-fs-ccw.c b/hw/s390x/vhost-user-fs-ccw.c
> index 6c6f26929301..474e97e937b8 100644
> --- a/hw/s390x/vhost-user-fs-ccw.c
> +++ b/hw/s390x/vhost-user-fs-ccw.c
> @@ -47,6 +47,8 @@ static void vhost_user_fs_ccw_instance_init(Object *obj)
>      ccw_dev->force_revision_1 = true;
>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>                                  TYPE_VHOST_USER_FS);
> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> +                              "bootindex");
>  }
>  
>  static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
> diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c
> index 8bb389bd282a..2ed8492b3fa3 100644
> --- a/hw/virtio/vhost-user-fs-pci.c
> +++ b/hw/virtio/vhost-user-fs-pci.c
> @@ -68,6 +68,8 @@ static void vhost_user_fs_pci_instance_init(Object *obj)
>  
>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>                                  TYPE_VHOST_USER_FS);
> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> +                              "bootindex");
>  }
>  
>  static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
> diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
> index ed036ad9c13f..ac4fc34b36a2 100644
> --- a/hw/virtio/vhost-user-fs.c
> +++ b/hw/virtio/vhost-user-fs.c
> @@ -22,6 +22,7 @@
>  #include "qemu/error-report.h"
>  #include "hw/virtio/vhost-user-fs.h"
>  #include "monitor/monitor.h"
> +#include "sysemu/sysemu.h"
>  
>  static void vuf_get_config(VirtIODevice *vdev, uint8_t *config)
>  {
> @@ -279,6 +280,14 @@ static Property vuf_properties[] = {
>      DEFINE_PROP_END_OF_LIST(),
>  };
>  
> +static void vuf_instance_init(Object *obj)
> +{
> +    VHostUserFS *fs = VHOST_USER_FS(obj);
> +
> +    device_add_bootindex_property(obj, &fs->bootindex, "bootindex",
> +                                  "/filesystem@0", DEVICE(obj));
> +}
> +
>  static void vuf_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> @@ -300,6 +309,7 @@ static const TypeInfo vuf_info = {
>      .name = TYPE_VHOST_USER_FS,
>      .parent = TYPE_VIRTIO_DEVICE,
>      .instance_size = sizeof(VHostUserFS),
> +    .instance_init = vuf_instance_init,
>      .class_init = vuf_class_init,
>  };
>  
>
Laszlo Ersek Jan. 11, 2021, 10:05 a.m. UTC | #3
On 01/11/21 10:46, Christian Borntraeger wrote:
> 
> 
> On 04.01.21 14:24, Laszlo Ersek wrote:
>> virtio-fs qualifies as a bootable device minimally under OVMF, but
>> currently the necessary "bootindex" property is missing (fw_cfg kernel
>> boot notwithstanding).
>>
>> Add the property. For completeness, add it to the CCW device as well;
>> other virtio-ccw devices seem to have "bootindex" properties too.
> 
> Currently we do not have boot support for virtiofs on s390x (ccw)
> Not sure if it is better if we should add the property now or whenever
> boot support is implemented. 
> As of today we do have bootindex for block and net. Maybe it is better
> to defer bootindex for virtio-fs-ccw until we can boot from it? In
> that way management software can detect if this is bootable or not?

Sure, I can drop the "vhost-user-fs-ccw.c hunk".

(I guess I could even lift the property itself (replacing the alias) to
"vhost-user-fs-pci.c", for now -- what's everyone's take on that?)

Thanks
Laszlo

> 
>>
>> Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
>> "bootorder" fw_cfg file:
>>
>>   /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0
>>
>> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>> Cc: "Michael S. Tsirkin" <mst@redhat.com>
>> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
>> Cc: Cornelia Huck <cohuck@redhat.com>
>> Cc: Halil Pasic <pasic@linux.ibm.com>
>> Cc: Stefan Hajnoczi <stefanha@redhat.com>
>> Cc: qemu-s390x@nongnu.org
>> Cc: virtio-fs@redhat.com
>> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
>> ---
>>  include/hw/virtio/vhost-user-fs.h |  1 +
>>  hw/s390x/vhost-user-fs-ccw.c      |  2 ++
>>  hw/virtio/vhost-user-fs-pci.c     |  2 ++
>>  hw/virtio/vhost-user-fs.c         | 10 ++++++++++
>>  4 files changed, 15 insertions(+)
>>
>> diff --git a/include/hw/virtio/vhost-user-fs.h b/include/hw/virtio/vhost-user-fs.h
>> index 698575277101..0d62834c2510 100644
>> --- a/include/hw/virtio/vhost-user-fs.h
>> +++ b/include/hw/virtio/vhost-user-fs.h
>> @@ -39,6 +39,7 @@ struct VHostUserFS {
>>      VhostUserState vhost_user;
>>      VirtQueue **req_vqs;
>>      VirtQueue *hiprio_vq;
>> +    int32_t bootindex;
>>  
>>      /*< public >*/
>>  };
>> diff --git a/hw/s390x/vhost-user-fs-ccw.c b/hw/s390x/vhost-user-fs-ccw.c
>> index 6c6f26929301..474e97e937b8 100644
>> --- a/hw/s390x/vhost-user-fs-ccw.c
>> +++ b/hw/s390x/vhost-user-fs-ccw.c
>> @@ -47,6 +47,8 @@ static void vhost_user_fs_ccw_instance_init(Object *obj)
>>      ccw_dev->force_revision_1 = true;
>>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>>                                  TYPE_VHOST_USER_FS);
>> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
>> +                              "bootindex");
>>  }
>>  
>>  static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
>> diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c
>> index 8bb389bd282a..2ed8492b3fa3 100644
>> --- a/hw/virtio/vhost-user-fs-pci.c
>> +++ b/hw/virtio/vhost-user-fs-pci.c
>> @@ -68,6 +68,8 @@ static void vhost_user_fs_pci_instance_init(Object *obj)
>>  
>>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>>                                  TYPE_VHOST_USER_FS);
>> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
>> +                              "bootindex");
>>  }
>>  
>>  static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
>> diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
>> index ed036ad9c13f..ac4fc34b36a2 100644
>> --- a/hw/virtio/vhost-user-fs.c
>> +++ b/hw/virtio/vhost-user-fs.c
>> @@ -22,6 +22,7 @@
>>  #include "qemu/error-report.h"
>>  #include "hw/virtio/vhost-user-fs.h"
>>  #include "monitor/monitor.h"
>> +#include "sysemu/sysemu.h"
>>  
>>  static void vuf_get_config(VirtIODevice *vdev, uint8_t *config)
>>  {
>> @@ -279,6 +280,14 @@ static Property vuf_properties[] = {
>>      DEFINE_PROP_END_OF_LIST(),
>>  };
>>  
>> +static void vuf_instance_init(Object *obj)
>> +{
>> +    VHostUserFS *fs = VHOST_USER_FS(obj);
>> +
>> +    device_add_bootindex_property(obj, &fs->bootindex, "bootindex",
>> +                                  "/filesystem@0", DEVICE(obj));
>> +}
>> +
>>  static void vuf_class_init(ObjectClass *klass, void *data)
>>  {
>>      DeviceClass *dc = DEVICE_CLASS(klass);
>> @@ -300,6 +309,7 @@ static const TypeInfo vuf_info = {
>>      .name = TYPE_VHOST_USER_FS,
>>      .parent = TYPE_VIRTIO_DEVICE,
>>      .instance_size = sizeof(VHostUserFS),
>> +    .instance_init = vuf_instance_init,
>>      .class_init = vuf_class_init,
>>  };
>>  
>>
>
Christian Borntraeger Jan. 11, 2021, 10:07 a.m. UTC | #4
On 11.01.21 11:05, Laszlo Ersek wrote:
> On 01/11/21 10:46, Christian Borntraeger wrote:
>>
>>
>> On 04.01.21 14:24, Laszlo Ersek wrote:
>>> virtio-fs qualifies as a bootable device minimally under OVMF, but
>>> currently the necessary "bootindex" property is missing (fw_cfg kernel
>>> boot notwithstanding).
>>>
>>> Add the property. For completeness, add it to the CCW device as well;
>>> other virtio-ccw devices seem to have "bootindex" properties too.
>>
>> Currently we do not have boot support for virtiofs on s390x (ccw)
>> Not sure if it is better if we should add the property now or whenever
>> boot support is implemented. 
>> As of today we do have bootindex for block and net. Maybe it is better
>> to defer bootindex for virtio-fs-ccw until we can boot from it? In
>> that way management software can detect if this is bootable or not?
> 
> Sure, I can drop the "vhost-user-fs-ccw.c hunk".
> 
> (I guess I could even lift the property itself (replacing the alias) to
> "vhost-user-fs-pci.c", for now -- what's everyone's take on that?)

Keep it as is. This would simplify a later addition to ccw.
Laszlo Ersek Jan. 11, 2021, 4:16 p.m. UTC | #5
On 01/11/21 11:07, Christian Borntraeger wrote:
> 
> 
> On 11.01.21 11:05, Laszlo Ersek wrote:
>> On 01/11/21 10:46, Christian Borntraeger wrote:
>>>
>>>
>>> On 04.01.21 14:24, Laszlo Ersek wrote:
>>>> virtio-fs qualifies as a bootable device minimally under OVMF, but
>>>> currently the necessary "bootindex" property is missing (fw_cfg kernel
>>>> boot notwithstanding).
>>>>
>>>> Add the property. For completeness, add it to the CCW device as well;
>>>> other virtio-ccw devices seem to have "bootindex" properties too.
>>>
>>> Currently we do not have boot support for virtiofs on s390x (ccw)
>>> Not sure if it is better if we should add the property now or whenever
>>> boot support is implemented. 
>>> As of today we do have bootindex for block and net. Maybe it is better
>>> to defer bootindex for virtio-fs-ccw until we can boot from it? In
>>> that way management software can detect if this is bootable or not?
>>
>> Sure, I can drop the "vhost-user-fs-ccw.c hunk".
>>
>> (I guess I could even lift the property itself (replacing the alias) to
>> "vhost-user-fs-pci.c", for now -- what's everyone's take on that?)
> 
> Keep it as is. This would simplify a later addition to ccw.
> 

Thanks!

I'll wait for some feedback from the other reviewers, before posting v2.

Laszlo
Cornelia Huck Jan. 11, 2021, 4:22 p.m. UTC | #6
On Mon,  4 Jan 2021 14:24:01 +0100
Laszlo Ersek <lersek@redhat.com> wrote:

> virtio-fs qualifies as a bootable device minimally under OVMF, but
> currently the necessary "bootindex" property is missing (fw_cfg kernel
> boot notwithstanding).
> 
> Add the property. For completeness, add it to the CCW device as well;
> other virtio-ccw devices seem to have "bootindex" properties too.
> 
> Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
> "bootorder" fw_cfg file:
> 
>   /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0
> 
> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: Halil Pasic <pasic@linux.ibm.com>
> Cc: Stefan Hajnoczi <stefanha@redhat.com>
> Cc: qemu-s390x@nongnu.org
> Cc: virtio-fs@redhat.com
> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
> ---
>  include/hw/virtio/vhost-user-fs.h |  1 +
>  hw/s390x/vhost-user-fs-ccw.c      |  2 ++
>  hw/virtio/vhost-user-fs-pci.c     |  2 ++
>  hw/virtio/vhost-user-fs.c         | 10 ++++++++++
>  4 files changed, 15 insertions(+)
> 

I agree that you should just drop the ccw hunk for now. The rest of the
patch looks good to me.
Laszlo Ersek Jan. 11, 2021, 4:32 p.m. UTC | #7
On 01/11/21 17:22, Cornelia Huck wrote:
> On Mon,  4 Jan 2021 14:24:01 +0100
> Laszlo Ersek <lersek@redhat.com> wrote:
> 
>> virtio-fs qualifies as a bootable device minimally under OVMF, but
>> currently the necessary "bootindex" property is missing (fw_cfg kernel
>> boot notwithstanding).
>>
>> Add the property. For completeness, add it to the CCW device as well;
>> other virtio-ccw devices seem to have "bootindex" properties too.
>>
>> Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
>> "bootorder" fw_cfg file:
>>
>>   /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0
>>
>> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>> Cc: "Michael S. Tsirkin" <mst@redhat.com>
>> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
>> Cc: Cornelia Huck <cohuck@redhat.com>
>> Cc: Halil Pasic <pasic@linux.ibm.com>
>> Cc: Stefan Hajnoczi <stefanha@redhat.com>
>> Cc: qemu-s390x@nongnu.org
>> Cc: virtio-fs@redhat.com
>> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
>> ---
>>  include/hw/virtio/vhost-user-fs.h |  1 +
>>  hw/s390x/vhost-user-fs-ccw.c      |  2 ++
>>  hw/virtio/vhost-user-fs-pci.c     |  2 ++
>>  hw/virtio/vhost-user-fs.c         | 10 ++++++++++
>>  4 files changed, 15 insertions(+)
>>
> 
> I agree that you should just drop the ccw hunk for now. The rest of the
> patch looks good to me.
> 

Thank you as well -- with the ccw hunk gone, I guess the CC list will be
shorter in v2, too :)

Dave, Stefan, Michael -- can you please comment? For the files to remain
in v2, "get_maintainer.pl" gives me:

"Dr. David Alan Gilbert" <dgilbert@redhat.com> (supporter:virtiofs)
"Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
"Michael S. Tsirkin" <mst@redhat.com> (supporter:virtio)
Stefan Hajnoczi <stefanha@redhat.com> (supporter:virtiofs)

Thanks
Laszlo
Dr. David Alan Gilbert Jan. 11, 2021, 5:38 p.m. UTC | #8
* Laszlo Ersek (lersek@redhat.com) wrote:
> virtio-fs qualifies as a bootable device minimally under OVMF, but
> currently the necessary "bootindex" property is missing (fw_cfg kernel
> boot notwithstanding).
> 
> Add the property. For completeness, add it to the CCW device as well;
> other virtio-ccw devices seem to have "bootindex" properties too.
> 
> Example OpenFirmware device path for the "vhost-user-fs-pci" device in the
> "bootorder" fw_cfg file:
> 
>   /pci@i0cf8/pci-bridge@1,6/pci1af4,105a@0/filesystem@0
> 
> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: Halil Pasic <pasic@linux.ibm.com>
> Cc: Stefan Hajnoczi <stefanha@redhat.com>
> Cc: qemu-s390x@nongnu.org
> Cc: virtio-fs@redhat.com
> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
> ---
>  include/hw/virtio/vhost-user-fs.h |  1 +
>  hw/s390x/vhost-user-fs-ccw.c      |  2 ++
>  hw/virtio/vhost-user-fs-pci.c     |  2 ++
>  hw/virtio/vhost-user-fs.c         | 10 ++++++++++
>  4 files changed, 15 insertions(+)
> 

That looks reasonable; although I'm not familiar with the bootindex
system; so 

Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>


> diff --git a/include/hw/virtio/vhost-user-fs.h b/include/hw/virtio/vhost-user-fs.h
> index 698575277101..0d62834c2510 100644
> --- a/include/hw/virtio/vhost-user-fs.h
> +++ b/include/hw/virtio/vhost-user-fs.h
> @@ -39,6 +39,7 @@ struct VHostUserFS {
>      VhostUserState vhost_user;
>      VirtQueue **req_vqs;
>      VirtQueue *hiprio_vq;
> +    int32_t bootindex;
>  
>      /*< public >*/
>  };
> diff --git a/hw/s390x/vhost-user-fs-ccw.c b/hw/s390x/vhost-user-fs-ccw.c
> index 6c6f26929301..474e97e937b8 100644
> --- a/hw/s390x/vhost-user-fs-ccw.c
> +++ b/hw/s390x/vhost-user-fs-ccw.c
> @@ -47,6 +47,8 @@ static void vhost_user_fs_ccw_instance_init(Object *obj)
>      ccw_dev->force_revision_1 = true;
>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>                                  TYPE_VHOST_USER_FS);
> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> +                              "bootindex");
>  }
>  
>  static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
> diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c
> index 8bb389bd282a..2ed8492b3fa3 100644
> --- a/hw/virtio/vhost-user-fs-pci.c
> +++ b/hw/virtio/vhost-user-fs-pci.c
> @@ -68,6 +68,8 @@ static void vhost_user_fs_pci_instance_init(Object *obj)
>  
>      virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
>                                  TYPE_VHOST_USER_FS);
> +    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
> +                              "bootindex");
>  }
>  
>  static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
> diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
> index ed036ad9c13f..ac4fc34b36a2 100644
> --- a/hw/virtio/vhost-user-fs.c
> +++ b/hw/virtio/vhost-user-fs.c
> @@ -22,6 +22,7 @@
>  #include "qemu/error-report.h"
>  #include "hw/virtio/vhost-user-fs.h"
>  #include "monitor/monitor.h"
> +#include "sysemu/sysemu.h"
>  
>  static void vuf_get_config(VirtIODevice *vdev, uint8_t *config)
>  {
> @@ -279,6 +280,14 @@ static Property vuf_properties[] = {
>      DEFINE_PROP_END_OF_LIST(),
>  };
>  
> +static void vuf_instance_init(Object *obj)
> +{
> +    VHostUserFS *fs = VHOST_USER_FS(obj);
> +
> +    device_add_bootindex_property(obj, &fs->bootindex, "bootindex",
> +                                  "/filesystem@0", DEVICE(obj));
> +}
> +
>  static void vuf_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> @@ -300,6 +309,7 @@ static const TypeInfo vuf_info = {
>      .name = TYPE_VHOST_USER_FS,
>      .parent = TYPE_VIRTIO_DEVICE,
>      .instance_size = sizeof(VHostUserFS),
> +    .instance_init = vuf_instance_init,
>      .class_init = vuf_class_init,
>  };
>  
> -- 
> 2.19.1.3.g30247aa5d201
>
diff mbox series

Patch

diff --git a/include/hw/virtio/vhost-user-fs.h b/include/hw/virtio/vhost-user-fs.h
index 698575277101..0d62834c2510 100644
--- a/include/hw/virtio/vhost-user-fs.h
+++ b/include/hw/virtio/vhost-user-fs.h
@@ -39,6 +39,7 @@  struct VHostUserFS {
     VhostUserState vhost_user;
     VirtQueue **req_vqs;
     VirtQueue *hiprio_vq;
+    int32_t bootindex;
 
     /*< public >*/
 };
diff --git a/hw/s390x/vhost-user-fs-ccw.c b/hw/s390x/vhost-user-fs-ccw.c
index 6c6f26929301..474e97e937b8 100644
--- a/hw/s390x/vhost-user-fs-ccw.c
+++ b/hw/s390x/vhost-user-fs-ccw.c
@@ -47,6 +47,8 @@  static void vhost_user_fs_ccw_instance_init(Object *obj)
     ccw_dev->force_revision_1 = true;
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VHOST_USER_FS);
+    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+                              "bootindex");
 }
 
 static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c
index 8bb389bd282a..2ed8492b3fa3 100644
--- a/hw/virtio/vhost-user-fs-pci.c
+++ b/hw/virtio/vhost-user-fs-pci.c
@@ -68,6 +68,8 @@  static void vhost_user_fs_pci_instance_init(Object *obj)
 
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VHOST_USER_FS);
+    object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+                              "bootindex");
 }
 
 static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
index ed036ad9c13f..ac4fc34b36a2 100644
--- a/hw/virtio/vhost-user-fs.c
+++ b/hw/virtio/vhost-user-fs.c
@@ -22,6 +22,7 @@ 
 #include "qemu/error-report.h"
 #include "hw/virtio/vhost-user-fs.h"
 #include "monitor/monitor.h"
+#include "sysemu/sysemu.h"
 
 static void vuf_get_config(VirtIODevice *vdev, uint8_t *config)
 {
@@ -279,6 +280,14 @@  static Property vuf_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
+static void vuf_instance_init(Object *obj)
+{
+    VHostUserFS *fs = VHOST_USER_FS(obj);
+
+    device_add_bootindex_property(obj, &fs->bootindex, "bootindex",
+                                  "/filesystem@0", DEVICE(obj));
+}
+
 static void vuf_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -300,6 +309,7 @@  static const TypeInfo vuf_info = {
     .name = TYPE_VHOST_USER_FS,
     .parent = TYPE_VIRTIO_DEVICE,
     .instance_size = sizeof(VHostUserFS),
+    .instance_init = vuf_instance_init,
     .class_init = vuf_class_init,
 };