zkr: check extension availability in csr_mseccef permssion check

2 years ago · 50c89eaba3
1 changed files with 2 additions and 1 deletions
--- a/riscv/csrs.cc
+++ b/riscv/csrs.cc
@ -286,7 +286,8 @@ mseccfg_csr_t::mseccfg_csr_t(processor_t* const proc, const reg_t addr):
 void mseccfg_csr_t::verify_permissions(insn_t insn, bool write) const {
  basic_csr_t::verify_permissions(insn, write);
  if (!proc->extension_enabled(EXT_SMEPMP) &&
-      !proc->extension_enabled(EXT_ZICFILP))
+      !proc->extension_enabled(EXT_ZICFILP) &&
+      !proc->extension_enabled(EXT_ZKR))
    throw trap_illegal_instruction(insn.bits());
 }