Hi, Case A and B are what I am looking for. I believe B is more likely for practical usecases for speed of guest execution.
I saw this news from 2008 and thought that years have passed, so this must be possible now. But looks like this still hasn't matured. http://beta.slashdot.org/story/109745 Would love to hear comments on the above story from back then. Regards -Prashant -----Original Message----- From: qemu-discuss-bounces+prashant.upadhyaya=aricent....@nongnu.org [mailto:qemu-discuss-bounces+prashant.upadhyaya=aricent....@nongnu.org] On Behalf Of Jakob Bohm Sent: Wednesday, May 28, 2014 11:02 PM To: qemu-discuss@nongnu.org Subject: Re: [Qemu-discuss] Live migration of VM On 5/23/2014 8:19 AM, Prashant Upadhyaya wrote: > Hi, > > Is it possible to live migrate a VM (emulating AMD) running on native > AMD to a machine running native ARM and back with QEMU ? > > I believe a clarification is needed here. What is it you want to do: A) Migrate the VM from qemu-system-x86_64 software emulating an AMD64 guest on an AMD64 host to qemu-system-x86_64 software emulating the same AMD64 guest on an ARM host. B) Migrate the VM from qemu-system-x86_64 KVM emulating an AMD64 guest on an AMD64 host to qemu-system-x86_64 software emulating the same AMD64 guest on an ARM host C) Migrate the VM from qemu-system-x86_64 emulating an AMD64 guest on an AMD64 host to qemu-system-arm emulating an ARM guest on an ARM host. C) Is mostly impossible, because the Guest memory needs to contain completely different code when the virtual machine suddenly swaps its (virtual) CPU from AMD64 to ARM. A) Might be possible, unless there is some oddity in the qemu code which transmits the virtual machine state differently depending on the Host architecture. B) Might be more difficult, if the qemu code transmits KVM virtual machine state differently from equivalent software emulated virtual machine state. Enjoy Jakob -- Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com Transformervej 29, 2730 Herlev, Denmark. Direct +45 31 13 16 10 This public discussion message is non-binding and may contain errors. WiseMo - Remote Service Management for PCs, Phones and Embedded "DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."
