[PATCH v2 0/8] SmePMP bugfixes and improvement

Yu-Chien Peter Lin peter.lin at sifive.com
Wed Oct 8 01:44:36 PDT 2025


This series improves SmePMP related functions and fixes
the access fault during domain context switch when SmePMP
is enabled.

Yu-Chien Peter Lin (8):
  lib: sbi_hart: move sbi_hart_get_smepmp_flags() to sbi_domain
  lib: sbi_domain: allow specifying inaccessible region
  lib: sbi_domain: print unsupported SmePMP permissions
  lib: sbi_hart: return error when insufficient PMP entries available
  lib: sbi_domain: add SBI_DOMAIN_MEMREGION_FW memregion flag
  lib: sbi_domain: ensure consistent firmware PMP entries
  lib: sbi: sbi_hart: track firmware PMP entries when configuring SmePMP
  lib: sbi_domain_context: preserve firmware PMP entries during domain
    context switch

 include/sbi/sbi_domain.h     |  11 ++++
 include/sbi/sbi_hart.h       |   1 +
 lib/sbi/sbi_domain.c         |  98 ++++++++++++++++++++++++++++-
 lib/sbi/sbi_domain_context.c |   4 ++
 lib/sbi/sbi_hart.c           | 116 ++++++++++++++---------------------
 5 files changed, 158 insertions(+), 72 deletions(-)

-- 
2.48.0




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