Only the VirtIO backend will watch xenstore to find out when a new instance needs to be created for a guest, and read the parameters from there. VirtIO frontend are only virtio, so they will not do anything with the xenstore nodes. They can be removed.
While at it, also add a comment to the libxl_virtio.c file.
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- tools/libs/light/libxl_virtio.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/tools/libs/light/libxl_virtio.c b/tools/libs/light/libxl_virtio.c index faada49e184e..f8a78e22d156 100644 --- a/tools/libs/light/libxl_virtio.c +++ b/tools/libs/light/libxl_virtio.c @@ -1,4 +1,9 @@ /* + * Setup VirtIO backend. This is intended to interact with a VirtIO + * backend that is watching xenstore, and create new VirtIO devices + * with the parameter found in xenstore (VirtIO frontend don't + * interact with xenstore.) + * * Copyright (C) 2022 Linaro Ltd. * * This program is free software; you can redistribute it and/or modify @@ -49,11 +54,6 @@ static int libxl__set_xenstore_virtio(libxl__gc *gc, uint32_t domid, flexarray_append_pair(back, "type", GCSPRINTF("%s", virtio->type)); flexarray_append_pair(back, "transport", GCSPRINTF("%s", transport));
- flexarray_append_pair(front, "irq", GCSPRINTF("%u", virtio->irq)); - flexarray_append_pair(front, "base", GCSPRINTF("%#"PRIx64, virtio->base)); - flexarray_append_pair(front, "type", GCSPRINTF("%s", virtio->type)); - flexarray_append_pair(front, "transport", GCSPRINTF("%s", transport)); - return 0; }