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Virtiofs's dax window can be used as read/write's source (e.g. mmap a file on virtiofs), but the dax window area is not shared with vhost-user backend, i.e. virtiofs daemon. To make those IO work, addresses of this kind of IO source are routed to VMM via FS_IO requests to perform a read/write from an fd directly to the given GPA. This adds the support of FS_IO request to clh's vhost-user-fs master part. Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> |
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Cargo.toml |