Screen is distorted when booting to Windows without rebooting the host

[zspencer]

I have no idea why this is happening, but the Windows 10 VM consistently has strange graphic distortions when I boot into it after using the Mac VM if I haven’t rebooted the host...

I’m guessing it has to do with the VFIO_BAD_ADDRESS errors I’m getting, but haven’t the foggiest how to resolve those:

qemu-system-x86_64: VFIO_MAP_DMA: -14
qemu-system-x86_64: vfio_dma_map(0x55ec7c6e9400, 0x1010208000, 0x4000, 0x7fb0c45f0000) = -14 (Bad address)
qemu-system-x86_64: VFIO_MAP_DMA: -14
qemu-system-x86_64: vfio_dma_map(0x55ec7c6e9400, 0x1010000000, 0x200000, 0x7fb0c4000000) = -14 (Bad address)
qemu-system-x86_64: VFIO_MAP_DMA: -14
qemu-system-x86_64: vfio_dma_map(0x55ec7c6e9400, 0xc0080000, 0x40000, 0x7fb0c423b000) = -14 (Bad address)
qemu-system-x86_64: VFIO_MAP_DMA: -14
qemu-system-x86_64: vfio_dma_map(0x55ec7c6e9400, 0x1010208000, 0x4000, 0x7fb0c45f0000) = -14 (Bad address)