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From: Xiongzi Ge <gexxx132@umn.edu>
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Subject: [Qemu-devel] Live Migration with different block devices
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Hi,


When I do live migration, in the source and destination host, there are
different block devices, but qemu can not detect this. I used virtio as the
driver in kvm and in the vdi device in the guest is /dev/vda.  So,  the vm
guest can read different data from the same /dev/vda device.  I am studying
this code to let qemu understand that, this is a new device.

Does qemu recognize different block devices after live migration?  Where is
the interface to modify this? Thanks


Gary

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<div dir=3D"ltr"><div><div>Hi,<br><br><br></div>When I do live migration, i=
n the source and destination host, there are different block devices, but q=
emu can not detect this. I used virtio as the driver in kvm and in the vdi =
device in the guest is /dev/vda.=C2=A0 So,=C2=A0 the vm guest can read diff=
erent data from the same /dev/vda device.=C2=A0 I am studying this code to =
let qemu understand that, this is a new device. <br>
<br></div><div>Does qemu recognize different block devices after live migra=
tion?=C2=A0 Where is the interface to modify this? Thanks <br></div><div><b=
r><br></div>Gary<br></div>

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