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SPELP field is defined only when S mode is enabled #2170

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Merged
aswaterman merged 1 commit into from
Dec 1, 2025
Merged

SPELP field is defined only when S mode is enabled #2170

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4 changes: 2 additions & 2 deletions riscv/csrs.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -449,7 +449,7 @@ reg_t base_status_csr_t::compute_sstatus_write_mask() const noexcept {
| (has_fs ? SSTATUS_FS : 0)
| (proc->any_custom_extensions() ? SSTATUS_XS : 0)
| (has_vs ? SSTATUS_VS : 0)
| (proc->extension_enabled(EXT_ZICFILP) ? SSTATUS_SPELP : 0)
| (proc->extension_enabled('S') && proc->extension_enabled(EXT_ZICFILP) ? SSTATUS_SPELP : 0)
| (proc->extension_enabled(EXT_SSDBLTRP) ? SSTATUS_SDT : 0)
;
}
Expand Down Expand Up @@ -562,7 +562,7 @@ bool mstatus_csr_t::unlogged_write(const reg_t val) noexcept {
| (has_gva ? MSTATUS_GVA : 0)
| (has_mpv ? MSTATUS_MPV : 0)
| (proc->extension_enabled(EXT_SMDBLTRP) ? MSTATUS_MDT : 0)
| (proc->extension_enabled(EXT_ZICFILP) ? (MSTATUS_SPELP | MSTATUS_MPELP) : 0)
| (proc->extension_enabled(EXT_ZICFILP) ? (MSTATUS_MPELP | (proc->extension_enabled('S') ? MSTATUS_SPELP : 0)) : 0)
;

const reg_t requested_mpp = proc->legalize_privilege(get_field(val, MSTATUS_MPP));
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