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[Xen-devel] [PATCH 0/4] Update flask_op hypercall interface

The FLASK hypercall interface originally attempted to emulate the
read/write interface used by SELinux, passing human-readable strings to
and from the hypervisor. This resulted in unnecessary string parsing and
conversion in the hypervisor and toolstack.

This series (primarily patch #3) converts the hypercall to use a
union-of-structures similar to the other Xen hypercalls. The wrappers in
libxc have been updated to preserve API compatibility where possible.

[PATCH 1/4] tools/flask: remove libflask
[PATCH 2/4] .gitignore/.hgignore: add missing output files
[PATCH 3/4] flask: Update flask_op hypercall structure
[PATCH 4/4] xen: Remove unused vsscanf/sscanf functions

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