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x86/crypto: Fix RBP usage in several crypto .S files

Josh Poimboeuf linux-crypto lkml 2 versions – In review

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Versions newest first · linked by author and title

  1. v2 Latest12 patches 1 replyIn review
  2. v112 patches 18 repliesSuperseded

Changes in v2 from the cover letter

- fix performance issues in sha256-avx2-asm.S and sha512-avx2-asm.S (Eric)

Patches in v2 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/12x86/crypto: Fix RBP usage in blowfish-x86_64-asm_64.Sarch/x86/crypto/blowfish-x86_64-asm_64.S+26 -220 replies
2/12x86/crypto: Fix RBP usage in camellia-x86_64-asm_64.Sarch/x86/crypto/camellia-x86_64-asm_64.S+13 -130 replies
3/12x86/crypto: Fix RBP usage in cast5-avx-x86_64-asm_64.Sarch/x86/crypto/cast5-avx-x86_64-asm_64.S+30 -170 replies
4/12x86/crypto: Fix RBP usage in cast6-avx-x86_64-asm_64.Sarch/x86/crypto/cast6-avx-x86_64-asm_64.S+34 -160 replies
5/12x86/crypto: Fix RBP usage in des3_ede-asm_64.Sarch/x86/crypto/des3_ede-asm_64.S+9 -60 replies
6/12x86/crypto: Fix RBP usage in sha1_avx2_x86_64_asm.Sarch/x86/crypto/sha1_avx2_x86_64_asm.S+1 -30 replies
7/12x86/crypto: Fix RBP usage in sha1_ssse3_asm.Sarch/x86/crypto/sha1_ssse3_asm.S+5 -60 replies
8/12x86/crypto: Fix RBP usage in sha256-avx-asm.Sarch/x86/crypto/sha256-avx-asm.S+7 -80 replies
9/12x86/crypto: Fix RBP usage in sha256-avx2-asm.Sarch/x86/crypto/sha256-avx2-asm.S+7 -150 replies
10/12x86/crypto: Fix RBP usage in sha256-ssse3-asm.Sarch/x86/crypto/sha256-ssse3-asm.S+7 -80 replies
11/12x86/crypto: Fix RBP usage in sha512-avx2-asm.Sarch/x86/crypto/sha512-avx2-asm.S+39 -360 replies
12/12x86/crypto: Fix RBP usage in twofish-avx-x86_64-asm_64.Sarch/x86/crypto/twofish-avx-x86_64-asm_64.S+6 -60 replies

Reviews trailers per patch

All 12 patches have a Reviewed-by or Acked-by.

PatchEric Biggers
1/12T-b A-b
2/12T-b A-b
3/12T-b A-b
4/12T-b A-b
5/12T-b A-b
6/12T-b A-b
7/12T-b A-b
8/12T-b A-b
9/12T-b A-b
10/12T-b A-b
11/12T-b A-b
12/12T-b A-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v2 thread

Cover letter [PATCH v2 00/12] x86/crypto: Fix RBP usage in several crypto .S files

v2:
- fix performance issues in sha256-avx2-asm.S and sha512-avx2-asm.S (Eric)

Many of the x86 crypto functions use RBP as a temporary register. This breaks frame pointer convention, and breaks stack traces when unwinding from an interrupt in the crypto code.

Convert most* of them to leave RBP alone.

These pass the crypto boot tests for me. Any further testing would be appreciated!

[*] There are still a few crypto files left that need fixing, but the
fixes weren't trivial and nobody reported unwinder warnings about them yet, so I'm skipping them for now.

Josh Poimboeuf (12):
x86/crypto: Fix RBP usage in blowfish-x86_64-asm_64.S x86/crypto: Fix RBP usage in camellia-x86_64-asm_64.S x86/crypto: Fix RBP usage in cast5-avx-x86_64-asm_64.S x86/crypto: Fix RBP usage in cast6-avx-x86_64-asm_64.S x86/crypto: Fix RBP usage in des3_ede-asm_64.S x86/crypto: Fix RBP usage in sha1_avx2_x86_64_asm.S x86/crypto: Fix RBP usage in sha1_ssse3_asm.S x86/crypto: Fix RBP usage in sha256-avx-asm.S x86/crypto: Fix RBP usage in sha256-avx2-asm.S x86/crypto: Fix RBP usage in sha256-ssse3-asm.S x86/crypto: Fix RBP usage in sha512-avx2-asm.S x86/crypto: Fix RBP usage in twofish-avx-x86_64-asm_64.S

 arch/x86/crypto/blowfish-x86_64-asm_64.S    | 48 +++++++++---------
 arch/x86/crypto/camellia-x86_64-asm_64.S    | 26 +++++-----
 arch/x86/crypto/cast5-avx-x86_64-asm_64.S   | 47 +++++++++++-------
 arch/x86/crypto/cast6-avx-x86_64-asm_64.S   | 50 +++++++++++++------
 arch/x86/crypto/des3_ede-asm_64.S           | 15 +++---
 arch/x86/crypto/sha1_avx2_x86_64_asm.S      |  4 +-
 arch/x86/crypto/sha1_ssse3_asm.S            | 11 ++---
 arch/x86/crypto/sha256-avx-asm.S            | 15 +++---
 arch/x86/crypto/sha256-avx2-asm.S           | 22 +++------
 arch/x86/crypto/sha256-ssse3-asm.S          | 15 +++---
 arch/x86/crypto/sha512-avx2-asm.S           | 75 +++++++++++++++--------------
 arch/x86/crypto/twofish-avx-x86_64-asm_64.S | 12 ++---
 12 files changed, 184 insertions(+), 156 deletions(-)
Signature · 1 line
2.13.5