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310e3f0a1d
Writing specific TLB entries with TLBWI flushes shadow TLB entries unless an existing entry is having its access permissions upgraded. This is necessary as software would from then on expect the previous mapping in that entry to no longer be in effect (even if QEMU has quietly evicted it to the shadow TLB on a TLBWR). However it won't do this if only EHINV, XI, or RI bits have been set, even if that results in a reduction of permissions, so add the necessary checks to invoke the flush when these bits are set. Backports commit eff6ff9431aa9776062a5f4a08d1f6503ca9995a from qemu |
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