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Merge pull request #2216 from pointerliu/fix-tw-read
csrs.cc: if no U-mode, mstatus.tw is read-only 0
pull/2218/head
Andrew Waterman
7 months ago
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1 changed files with
2 additions and
1 deletions
-
riscv/csrs.cc
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@ -556,7 +556,8 @@ bool mstatus_csr_t::unlogged_write(const reg_t val) noexcept { |
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const reg_t mask = adj_write_mask |
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| MSTATUS_MIE | MSTATUS_MPIE |
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| (proc->extension_enabled('U') ? MSTATUS_MPRV : 0) |
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| MSTATUS_MPP | MSTATUS_TW |
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| MSTATUS_MPP |
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| (proc->extension_enabled('U') ? MSTATUS_TW : 0) |
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| (proc->extension_enabled('S') ? MSTATUS_TSR : 0) |
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| (has_page ? MSTATUS_TVM : 0) |
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| (has_gva ? MSTATUS_GVA : 0) |
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