[PATCH v5 00/12] x86: Support Key Locker

Chang S. Bae
2022-01-12T21:20:37Z

Changes from v4 [1]:
* Drop CBC mode support (PATCH10). (Eric Biggers)
* Update the changelog (PATCH8). (Rafael Wysocki)

A couple of other things outside of these patches are still in progress:
* Support DM-crypt/cryptsetup for Key Locker usage (Andy Lutomirski)
[2].
* Understand decryption under-performance (Eric Biggers and Milan Broz)
[3][4].

This feature's usage for the threat model can be found in the previous
cover letter [1]. This version is based on 5.16.

Thanks,
Chang

[1] V4: https://lore.kernel.org/lkml/20211214005212.20588-1-chang.seok.bae@intel.com/
[2] https://lore.kernel.org/lkml/75ec3ad1-6234-ae1f-1b83-482793e4fd23@kernel.org/
[3] https://lore.kernel.org/lkml/YbqRseO+TtuGQk5x@sol.localdomain/
[4] https://lore.kernel.org/lkml/120368dc-e337-9176-936c-4db2a8bf710e@gmail.com/

Chang S. Bae (12):
Documentation/x86: Document Key Locker
x86/cpufeature: Enumerate Key Locker feature
x86/insn: Add Key Locker instructions to the opcode map
x86/asm: Add a wrapper function for the LOADIWKEY instruction
x86/msr-index: Add MSRs for Key Locker internal wrapping key
x86/keylocker: Define Key Locker CPUID leaf
x86/cpu/keylocker: Load an internal wrapping key at boot-time
x86/PM/keylocker: Restore internal wrapping key on resume from ACPI
S3/4
x86/cpu: Add a configuration and command line option for Key Locker
crypto: x86/aes - Prepare for a new AES implementation
crypto: x86/aes-kl - Support AES algorithm using Key Locker
instructions
crypto: x86/aes-kl - Support XTS mode

.../admin-guide/kernel-parameters.txt | 2 +
Documentation/x86/index.rst | 1 +
Documentation/x86/keylocker.rst | 98 +++
arch/x86/Kconfig | 3 +
arch/x86/crypto/Makefile | 5 +-
arch/x86/crypto/aes-intel_asm.S | 26 +
arch/x86/crypto/aes-intel_glue.c | 125 ++++
arch/x86/crypto/aes-intel_glue.h | 48 ++
arch/x86/crypto/aeskl-intel_asm.S | 633 ++++++++++++++++++
arch/x86/crypto/aeskl-intel_glue.c | 216 ++++++
arch/x86/crypto/aesni-intel_asm.S | 58 +-
arch/x86/crypto/aesni-intel_glue.c | 239 ++-----
arch/x86/crypto/aesni-intel_glue.h | 17 +
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/disabled-features.h | 8 +-
arch/x86/include/asm/keylocker.h | 45 ++
arch/x86/include/asm/msr-index.h | 6 +
arch/x86/include/asm/special_insns.h | 32 +
arch/x86/include/uapi/asm/processor-flags.h | 2 +
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/cpu/common.c | 21 +-
arch/x86/kernel/cpu/cpuid-deps.c | 1 +
arch/x86/kernel/keylocker.c | 199 ++++++
arch/x86/kernel/smpboot.c | 2 +
arch/x86/lib/x86-opcode-map.txt | 11 +-
arch/x86/power/cpu.c | 2 +
crypto/Kconfig | 36 +
tools/arch/x86/lib/x86-opcode-map.txt | 11 +-
28 files changed, 1633 insertions(+), 216 deletions(-)
create mode 100644 Documentation/x86/keylocker.rst
create mode 100644 arch/x86/crypto/aes-intel_asm.S
create mode 100644 arch/x86/crypto/aes-intel_glue.c
create mode 100644 arch/x86/crypto/aes-intel_glue.h
create mode 100644 arch/x86/crypto/aeskl-intel_asm.S
create mode 100644 arch/x86/crypto/aeskl-intel_glue.c
create mode 100644 arch/x86/crypto/aesni-intel_glue.h
create mode 100644 arch/x86/include/asm/keylocker.h
create mode 100644 arch/x86/kernel/keylocker.c

base-commit: df0cc57e057f18e44dac8e6c18aba47ab53202f9
--
2.17.1