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Paul Durrant
0cc1283094
9pfs support has been a documented feature since Xen 4.9, but QEMU will not be built with backend support unless VirtFS is enabled, which is predicated on the libcap and libattr dev packages being installed. This is not obvious to anyone intending to use 9pfs. This patch adds an 'enable-9pfs' option to configure which, if specified, will cause '--enable-virtfs' to be passed to QEMU's configure. This will cause the dependency on libcap and libattr to be called out if the packages are not in installed. For completeness, specifying 'disable-9pfs' will cause '--disable-virtfs' to be passed to QEMU's confgure and not specifying an option will keep the previous behaviour of predicating VirtFS on whether the libcap and libattr packages are installed. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Acked-by: Wei Liu <wei.liu2@citrix.com>