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Pawel Wieczorkiewicz
879615f5db
This change is part of a independant stacked livepatch modules feature. This feature allows to bypass dependencies between modules upon loading, but still verifies Xen build ID matching. In order to prevent (up)loading any livepatches built for different hypervisor version as indicated by the Xen Build ID, add checking for the payload's vs Xen's build id match. To achieve that embed into every livepatch another section with a dedicated hypervisor build id in it. After the payload is loaded and the .livepatch.xen_depends section becomes available, perform the check and reject the payload if there is no match. Signed-off-by: Pawel Wieczorkiewicz <wipawel@amazon.de> Reviewed-by: Andra-Irina Paraschiv <andraprs@amazon.com> Reviewed-by: Bjoern Doebel <doebel@amazon.de> Reviewed-by: Eslam Elnikety <elnikety@amazon.de> Reviewed-by: Martin Pohlack <mpohlack@amazon.de> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Ross Lagerwall <ross.lagerwall@citrix.com>
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