[PATCH v2 0/3] RISC-V Smstateen support

Mayuresh Chitale mchitale at ventanamicro.com
Tue Apr 5 03:45:38 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 v2:
- Rebase on latest master branch
- Fix RV32 compilation issue
- 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




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