[PATCH v2 00/12] x86/crypto: Fix RBP usage in several crypto .S files
From: Josh Poimboeuf
Date: Mon Sep 18 2017 - 15:42:43 EST
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(-)
--
2.13.5