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vfio-user: handle reset of remote device

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Adds handler to reset a remote device

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 112eeadf3bc4c6cdb100bc3f9a6fcfc20b467c1b.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Jagannathan Raman 2022-06-13 16:26:34 -04:00 committed by Stefan Hajnoczi
parent 08cf3dc611
commit 78e27dfa8d
1 changed files with 20 additions and 0 deletions
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20
hw/remote/vfio-user-obj.c
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@ -676,6 +676,20 @@ void vfu_object_set_bus_irq(PCIBus *pci_bus)
max_bdf);
}
static int vfu_object_device_reset(vfu_ctx_t *vfu_ctx, vfu_reset_type_t type)
{
VfuObject *o = vfu_get_private(vfu_ctx);
/* vfu_object_ctx_run() handles lost connection */
if (type == VFU_RESET_LOST_CONN) {
return 0;
}
qdev_reset_all(DEVICE(o->pci_dev));
return 0;
}
/*
* TYPE_VFU_OBJECT depends on the availability of the 'socket' and 'device'
* properties. It also depends on devices instantiated in QEMU. These
@ -795,6 +809,12 @@ static void vfu_object_init_ctx(VfuObject *o, Error **errp)
goto fail;
}
ret = vfu_setup_device_reset_cb(o->vfu_ctx, &vfu_object_device_reset);
if (ret < 0) {
error_setg(errp, "vfu: Failed to setup reset callback");
goto fail;
}
ret = vfu_realize_ctx(o->vfu_ctx);
if (ret < 0) {
error_setg(errp, "vfu: Failed to realize device %s- %s",