Hi,
This patch series adds a paravirtual file system passthrough mechanism to QEMU based on the 9P protocol. With the current implementation, all I/O is implemented in the VCPU thread. We've modified the protocol handlers so that we can support dispatch I/O in a thread pool. The actual thread pool implementation will be posted later This patch set should work with any recent Linux kernel as virtio-9p has been supported for a few kernel releases now. Export dir is specified using the below Qemu option. -device virtio-9p-pci,share_path=/mnt/,mount_tag=v_mnt mount_tag is used to identify the mount point in the kernel. This will be available in Linux kernel via /sys/devices/virtio-pci/virtio1/mount_tag file. Changes from V1: a) fsstress test suite runs successfully with the patches. That should indicate patches are stable enough to be merged. b) Added proper error handling to all posix_* calls. c) Fixed code to follow Qemu coding style. d) Other bug fixes most of which are folded back into the original patches e) rebased to qemu master 0aef4261ac0ec9089ade0e3a92f986cb4ba7317e -aneesh
