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H A D | configure | 20a544c7dc2428e8816ed4a87af732884e885f2d Mon Jun 29 11:51:05 CDT 2015 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> xen: use errno instead of rc for xc_domain_add_to_physmap
In Xen 4.6 commit cd2f100f0f61b3f333d52d1737dd73f02daee592 "libxc: Fix do_memory_op to return negative value on errors" made the libxc API less odd-ball: On errors, return value is -1 and error code is in errno. On success the return value is either 0 or an positive value.
Since we could be running with an old toolstack in which the Exx value is in rc or the newer, we add an wrapper around the xc_domain_add_to_physmap (called xen_xc_domain_add_to_physmap) which will always return the EXX.
Xen 4.6 did not change the libxc functions mentioned (same parameters) so we piggyback on the fact that Xen 4.6 has a new function: commit 504ed2053362381ac01b98db9313454488b7db40 "tools/libxc: Expose new hypercall xc_reserved_device_memory_map" and check for that.
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Suggested-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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