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| author |   Maciej S. Szmigiero <mail@maciej.szmigiero.name> | 2018-06-19 20:47:32 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2018-11-19 10:45:03 +0100 |
| commit | f4ff25916c1186912e1b53c25861c8abc9f15687 (patch) | |
| tree | 3aac0b18308d92374f691dc3f9f94e17d7c9c42b /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | x86/microcode/AMD: Subtract SECTION_HDR_SIZE from file leftover length (diff) | |
| download | wireguard-linux-f4ff25916c1186912e1b53c25861c8abc9f15687.tar.xz wireguard-linux-f4ff25916c1186912e1b53c25861c8abc9f15687.zip | |
x86/microcode/AMD: Add microcode container verification
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
Diffstat (limited to '')
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