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6 Commits

Author SHA1 Message Date
Luke Wren a84742abd4 Fix mstatus.mie still being respected when privilege is less than M. 
Extend umode_wfi testcase to cover this, and in particular to check
that when entering U-mode with IRQs pending, the IRQs execute before any
exceptions occurring as a result of the U-mode instructions.
 2024-05-11 10:49:13 +01:00
Luke Wren 71eff7649d Add PMP U-mode read/write permission test 2022-05-29 18:42:44 +01:00
Luke Wren c8afcdbb8f Extend umode_wfi test to check U-mode WFI doesn't stall the processor if TW=0 or PMP X check fails 2022-05-29 17:42:15 +01:00
Luke Wren 81aec325bb ecall from U-mode has a different mcause value than ecall from M-mode 2022-05-28 12:07:29 +01:00
Luke Wren 456810b09e Make vcd generation optional in runtests 2022-05-24 22:56:13 +01:00
Luke Wren 64d9f4a111 Add tests for execution of mret and wfi in U mode 2022-05-24 22:14:20 +01:00