[RFC,v2,0/7] support subsets of scalar crypto extension

Message

Weiwei Li Nov. 16, 2021, 8:06 a.m. UTC

This patchset implements RISC-V K-extension v1.0.0.rc6 version instructions. 
Partial instructions are reused from B-extension.

Specification:
https://github.com/riscv/riscv-crypto

The port is available here:
https://github.com/plctlab/plct-qemu/tree/plct-k-upstream-v2

To test rvk implementation,  specify cpu argument with 'x-zks=true,x-zkn=true'  
or 
"x-zbkb=true,x-zbkc=true,x-zbkx=true,x-zknd=true,x-zkne=true,x-zknh=true,x-zksed=true,x-zksh=true,x-zkr=true"
 to enable  K-extension support.  This implementation can pass the ACT tests 
for K with our extended act support for qemu (available at 
https://github.com/plctlab/plct-qemu/tree/plct-k-upstream-v2-with-act)

v2:
* optimize implementation for brev8, xperm, zip, unzip
* use aes related sbox array from crypto/aes.h
* move sm4_sbox to crypto/sm4.c, and share it with target/arm

liweiwei (7):
  target/riscv: rvk: add cfg properties for zbk* and zk*
  target/riscv: rvk: add implementation of instructions for Zbk*
  crypto include/crypto target/arm: move sm4_sbox to crypto
  target/riscv: rvk: add implementation of instructions for Zk*
  target/riscv: rvk: add CSR support for Zkr
  disas/riscv.c: rvk: add disas support for Zbk* and Zk* instructions
  target/riscv: rvk: expose zbk* and zk* properties

 crypto/meson.build                      |   1 +
 crypto/sm4.c                            |  37 ++
 disas/riscv.c                           | 171 ++++++++-
 include/crypto/sm4.h                    |   6 +
 meson                                   |   2 +-
 target/arm/crypto_helper.c              |  36 +-
 target/riscv/bitmanip_helper.c          |  74 ++++
 target/riscv/cpu.c                      |  36 ++
 target/riscv/cpu.h                      |  13 +
 target/riscv/cpu_bits.h                 |   9 +
 target/riscv/crypto_helper.c            | 446 ++++++++++++++++++++++
 target/riscv/csr.c                      |  70 ++++
 target/riscv/helper.h                   |  48 +++
 target/riscv/insn32.decode              |  94 ++++-
 target/riscv/insn_trans/trans_rvb.c.inc | 127 ++++++-
 target/riscv/insn_trans/trans_rvk.c.inc | 467 ++++++++++++++++++++++++
 target/riscv/meson.build                |   1 +
 target/riscv/pmp.h                      |   8 +-
 target/riscv/translate.c                |   8 +
 19 files changed, 1583 insertions(+), 71 deletions(-)
 create mode 100644 crypto/sm4.c
 create mode 100644 include/crypto/sm4.h
 create mode 100644 target/riscv/crypto_helper.c
 create mode 100644 target/riscv/insn_trans/trans_rvk.c.inc