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Merge pull request #1363 from YenHaoChen/pr-initial-mpp
Let mstatus.MPP initially be M-mode if unsupporting U-mode
pull/1367/head
Andrew Waterman
3 years ago
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1 changed files with
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riscv/csrs.cc
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@ -510,6 +510,7 @@ reg_t mstatus_csr_t::compute_mstatus_initial_value() const noexcept { |
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| (proc->extension_enabled_const('S') ? MSTATUS_SBE : 0) |
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| (proc->extension_enabled_const('S') ? MSTATUS_SBE : 0) |
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| MSTATUS_MBE; |
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| MSTATUS_MBE; |
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return 0 |
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return 0 |
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| set_field((reg_t)0, MSTATUS_MPP, proc->extension_enabled_const('U') ? PRV_U : PRV_M) |
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| (proc->extension_enabled_const('U') && (proc->get_const_xlen() != 32) ? set_field((reg_t)0, MSTATUS_UXL, xlen_to_uxl(proc->get_const_xlen())) : 0) |
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| (proc->extension_enabled_const('U') && (proc->get_const_xlen() != 32) ? set_field((reg_t)0, MSTATUS_UXL, xlen_to_uxl(proc->get_const_xlen())) : 0) |
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| (proc->extension_enabled_const('S') && (proc->get_const_xlen() != 32) ? set_field((reg_t)0, MSTATUS_SXL, xlen_to_uxl(proc->get_const_xlen())) : 0) |
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| (proc->extension_enabled_const('S') && (proc->get_const_xlen() != 32) ? set_field((reg_t)0, MSTATUS_SXL, xlen_to_uxl(proc->get_const_xlen())) : 0) |
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| (proc->get_mmu()->is_target_big_endian() ? big_endian_bits : 0) |
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| (proc->get_mmu()->is_target_big_endian() ? big_endian_bits : 0) |
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