[PATCH v6 0/4] zicfilp and zicfiss support in opensbi

[Deepak Gupta <debug@rivosinc.com>]

v6 for zicfilp and zicfiss support in opensbi

---
v6:
 - sorted fwft addition of shadow stack and landing pad
 - revised comment, spacing and cosmetic changes.

v5:
 - OpenSBI parses ISA string which is recieved in FDT and if ISA
   string matches, it sets extension availablity in extension bitmap.
   Thus removed zicfilp and zicfiss trap based and mstatus detection
v4:
 - fixed up commit message in patch 2
v3:
 - added fwft implementation for shadow stack and landing pad interface
v2:
 - added mpelp for 32bit (mstatush) and its handling in trad redirection
 - removed default SSE enabling. it'll break shadow stack enabled kernel
 - put sw check delegation at correct place

Deepak Gupta (4):
  include: adding support for Zicfilp / Zicfiss encodings
  lib: sbi: add zicfilp/zicfiss and elp cfi state reflect back in status
  lib: sbi: sw check exception delegation
  lib: sbi: fwft: implement landing pad and shadow stack fwft interface

 include/sbi/riscv_encoding.h |  7 ++++
 include/sbi/sbi_hart.h       |  4 ++
 lib/sbi/sbi_fwft.c           | 74 ++++++++++++++++++++++++++++++++++++
 lib/sbi/sbi_hart.c           |  5 ++-
 lib/sbi/sbi_trap.c           | 20 ++++++++++
 5 files changed, 109 insertions(+), 1 deletion(-)

-- 
2.45.0