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f4ff25916c
Add container and patch verification functions to the AMD microcode update driver. These functions check whether a passed buffer contains the relevant structure, whether it isn't truncated and (for actual microcode patches) whether the size of a patch is not too large for a particular CPU family. By adding these checks as separate functions the actual microcode loading code won't get interspersed with a lot of checks and so will be more readable. [ bp: Make all pr_err() calls into pr_debug() and drop the verify_patch() bits. ] Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: x86-ml <x86@kernel.org> Link: http://lkml.kernel.org/r/3014e96c82cd90761b4601bd2cfe59c4119e46a7.1529424596.git.mail@maciej.szmigiero.name |
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