Commit Graph

13 Commits

Author SHA1 Message Date
godpow 41e15e95b1 [crypto] Rework AES CTR/XTS streaming and squash heap churn (#2782)
AES Updates:
Replaced heap churn with stack scratch buffers tail handling now stays in-place, no more recursive transcode detours.
CTR/XTS modes read in larger, aligned chunks and still handle odd offsets cleanly.
XTS prefetches a few sectors ahead to reduce extra reads.
AesCtrStorage writer now uses the pooled buffer properly one stack slab, chunk forward, bump counter, repeat.
Result: less malloc noise, fewer watchdog spikes at startup (though mbedtls still sets the pace).
This should make the loading speed slightly better than before. Make sure to test.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2782
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: godpow <thesaviorsrule@yahoo.com>
Co-committed-by: godpow <thesaviorsrule@yahoo.com>
2025-10-26 02:12:27 +01:00
lizzie 440ee4916d [nca] Use better tight loop allocation schemes (none at all) for AES decrypt/encrypt and force MbedTLS to use AES x86_64 instructions (#2750)
Uses stack instead of allocating stuff haphazardly (16 bytes and 512 bytes respectively) - removes malloc() pollution and all that nasty stuff from tight loops
Original work by Ribbit but edited by me.
Will NOT bring a massive speedup since the main bottleneck is mbedtls itself, but may bring nice oddities to STARTUP TIMES nonetheless.
AES instructions being forced wont affect CPUs without them since there is always a runtime check for them.

Signed-off-by: lizzie lizzie@eden-emu.dev
Co-authored-by: Ribbit <ribbit@placeholder.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2750
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
2025-10-17 05:08:51 +02:00
Morph 2b87305d31 general: Convert source file copyright comments over to SPDX
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
2022-04-23 05:55:32 -04:00
ameerj d27abf5546 core: Remove unused includes 2021-11-03 21:42:57 -04:00
Lioncash eeae5217ba core: Make variable shadowing a compile-time error
Now that we have most of core free of shadowing, we can enable the
warning as an error to catch anything that may be remaining and also
eliminate this class of logic bug entirely.
2021-05-16 03:43:16 -04:00
Lioncash c28e7f51f3 aes_util: Allow SetIV to be non-allocating
In a few places, the data to be set as the IV is already within an array.
We shouldn't require this data to be heap-allocated if it doesn't need
to be. This allows certain callers to reduce heap churn.
2020-08-03 14:29:58 -04:00
fearlessTobi 1190ea6ddb Port #4182 from Citra: "Prefix all size_t with std::" 2018-09-15 15:21:06 +02:00
Zach Hilman bf86700873 game_list: Use RegisteredCacheUnion for installed
Reduces code
2018-09-04 16:21:40 -04:00
Zach Hilman abb0f6cac9 ctr_encryption_layer: Fix bug when transcoding small data
Fixes a bug where data lengths of less than size 0x10 will fail or have misleading return values.
2018-08-23 11:52:44 -04:00
Zach Hilman 568ce6304c Add missing includes and use const where applicable 2018-08-01 00:16:54 -04:00
Zach Hilman 272ca87298 Make XCI comply to review and style guidelines 2018-08-01 00:16:54 -04:00
Zach Hilman 0c75b8d6b2 Add missing string.h include 2018-08-01 00:16:54 -04:00
Zach Hilman b10c0d291f Remove files that are not used 2018-08-01 00:16:54 -04:00