[PATCH v3 0/3] RISC-V Smstateen support

Mayuresh Chitale mchitale at ventanamicro.com
Wed Apr 6 09:57:38 PDT 2022


This series adds support for the Smstateen specification which provides
a mechanism to plug potential covert channels which are opened by extensions
which add to processor state that may not get context-switched. Currently
access to AIA registers and *envcfg registers is controlled via
smstateen.

Changes in v3:
- Fix RV32 compilation issue

Changes in v2:
- Rebase on latest master branch
- Fix indentation issue

Mayuresh Chitale (3):
  lib: sbi: Add Smstateen extension defines
  lib: sbi: Detect Smstateen CSRs at boot-time
  lib: irqchip/imsic: configure mstateen

 include/sbi/riscv_encoding.h | 44 ++++++++++++++++++++++++++++++++++++
 include/sbi/sbi_hart.h       |  4 +++-
 lib/sbi/sbi_hart.c           | 31 +++++++++++++++++++++++++
 3 files changed, 78 insertions(+), 1 deletion(-)

-- 
2.17.1




More information about the opensbi mailing list