Re: [PATCH v18 QEMU 16/18] vfio: Add ioctl to get dirty pages bitmap during dma unmap.

2020-05-06 Thread Cornelia Huck
On Tue, 5 May 2020 04:14:51 +0530 Kirti Wankhede wrote: > With vIOMMU, IO virtual address range can get unmapped while in pre-copy > phase of migration. In that case, unmap ioctl should return pages pinned > in that range and QEMU should find its correcponding guest physical > addresses and repor

[PATCH v18 QEMU 16/18] vfio: Add ioctl to get dirty pages bitmap during dma unmap.

2020-05-04 Thread Kirti Wankhede
With vIOMMU, IO virtual address range can get unmapped while in pre-copy phase of migration. In that case, unmap ioctl should return pages pinned in that range and QEMU should find its correcponding guest physical addresses and report those dirty. Note: This patch is not yet tested. I'm trying to