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Currently only array maps are supported, but the implementation can be extended for other maps and objects. The hash is memoized only for exclusive and frozen maps as their content is stable until the exclusive program modifies the map. This is required for BPF signing, enabling a trusted loader program to verify a map's integrity. The loader retrieves the map's runtime hash from the kernel and compares it against an expected hash computed at build time. Signed-off-by: KP Singh <kpsingh@kernel.org> Link: https://lore.kernel.org/r/20250914215141.15144-7-kpsingh@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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