Re: [Xen-devel] live migrating hvm from 4.4 to 4.5 fails due to kvmvapic

2016-08-02 Thread Stefano Stabellini
On Tue, 2 Aug 2016, Olaf Hering wrote: > As a followup to the issue below, and the one which "just" popped in in > qemu-2.6+: > > Why is the machine description for xen not fixed? xenfv comes from a time when QEMU didn't have machine description versioning. To have versioning, it is possible to

Re: [Xen-devel] live migrating hvm from 4.4 to 4.5 fails due to kvmvapic

2016-08-02 Thread Olaf Hering
As a followup to the issue below, and the one which "just" popped in in qemu-2.6+: Why is the machine description for xen not fixed? Shouldnt the be some sort of verification of old and new 'xenfv' when a new qemu rc1 is done? Is there a way to dump the machine description in text form? Olaf

Re: [Xen-devel] live migrating hvm from 4.4 to 4.5 fails due to kvmvapic

2016-05-13 Thread Wei Liu
On Thu, May 12, 2016 at 05:48:13PM +0200, Olaf Hering wrote: > Migrating a HVM guest from staging-4.4 to staging-4.5 fails: > > # cat /var/log/xen/qemu-dm-fv-x64-sles12sp1-clean--incoming.log > char device redirected to /dev/pts/4 (label serial0) > xen_ram_alloc: do not alloc f80 bytes of ram

Re: [Xen-devel] live migrating hvm from 4.4 to 4.5 fails due to kvmvapic

2016-05-13 Thread Stefano Stabellini
On Thu, 12 May 2016, Olaf Hering wrote: > On Thu, May 12, Olaf Hering wrote: > > > One thing to fix it in staging-4.5 is to introduce a dummy device which > > handles a section named "kvm-tpr-opt". I already have a hack which does > > that, and the migration proceeds. I will propose a patch to

Re: [Xen-devel] live migrating hvm from 4.4 to 4.5 fails due to kvmvapic

2016-05-12 Thread Olaf Hering
On Thu, May 12, Olaf Hering wrote: > One thing to fix it in staging-4.5 is to introduce a dummy device which > handles a section named "kvm-tpr-opt". I already have a hack which does > that, and the migration proceeds. I will propose a patch to deal with > this part of the bug. Something like

[Xen-devel] live migrating hvm from 4.4 to 4.5 fails due to kvmvapic

2016-05-12 Thread Olaf Hering
Migrating a HVM guest from staging-4.4 to staging-4.5 fails: # cat /var/log/xen/qemu-dm-fv-x64-sles12sp1-clean--incoming.log char device redirected to /dev/pts/4 (label serial0) xen_ram_alloc: do not alloc f80 bytes of ram at 0 when runstate is INMIGRATE xen_ram_alloc: do not alloc 80