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SFENCE.VMA instruction privilege #1798
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Spike does allow SFENCE.VMA to be executed in M-mode, but only if the implementation supports S-mode. This is the correct behavior. |
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Can sfence.vma instruction be executed in supervisor mode?
I think both 'S' and 'M' modes are possible, but spike doesn't support it in 'M' mode.
Also, it doesn't work even though I changed the code as below in sfence_vma.h file.
require_extension('S') -> require_extension('M')
Is there any solution to support sfence.vma in 'M' mode?
Thank you.
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