On Tue, 25 Jun 2019 at 00:11, Dr. David Alan Gilbert <dgilb...@redhat.com> wrote: > > * Sukrit Bhatnagar (skrtbht...@gmail.com) wrote: > > Hi David, > > > > I am Sukrit, GSoC participant working on PVRDMA live migration. > > We had a short chat about vmxnet3 migration about a week ago > > on the IRC channel. > > > > I am facing an issue while doing migration of the pvrdma device. > > While loading the device state, we need to perform a few dma > > mappings on the destination. But on the destination, the migration > > fails due a BounceBuffer being locked (in_use). This global > > BounceBuffer is used in address_space_map/unmap functions > > which the rdma_pci_dma_map/unmap calls. > > Essentially, we need a way to remap guest physical address on > > the destination after migration. > > > > I had posted an RFC a while ago on the list: > > https://lists.gnu.org/archive/html/qemu-devel/2019-06/msg04924.html > > https://lists.gnu.org/archive/html/qemu-devel/2019-06/msg04923.html > > > > My mentors (Marcel and Yuval) told me to ask you for help > > regarding this. It would be really great if you can guide me in > > finding a workaround for this. > > Hi, > I'll have a look; I need to get some other things finished first.
Adding cc: qemu-devel, sorry for the private email. > Dave > > Thanks, > > Sukrit > -- > Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
