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Shared Translation.Translation Pseudocode
Library pseudocode for shared/translation/translation/HasS2Translation
// HasS2Translation() // ================== // Returns TRUE if stage 2 translation is present for the current translation regime boolean HasS2Translation() return (EL2Enabled() && !IsInHost() && PSTATE.EL IN {EL0,EL1});
Library pseudocode for shared/translation/translation/Have16bitVMID
// Have16bitVMID() // =============== // Returns TRUE if EL2 and support for a 16-bit VMID are implemented. boolean Have16bitVMID() return HaveEL(EL2) && boolean IMPLEMENTATION_DEFINED "Has 16-bit VMID";
Library pseudocode for shared/translation/translation/PAMax
// PAMax() // ======= // Returns the IMPLEMENTATION DEFINED upper limit on the physical address // size for this processor, as log2(). integer PAMax() return integer IMPLEMENTATION_DEFINED "Maximum Physical Address Size";
Library pseudocode for shared/translation/translation/S1TranslationRegime
// S1TranslationRegime() // ===================== // Stage 1 translation regime for the given Exception level bits(2) S1TranslationRegime(bits(2) el) if el != EL0 then return el; elsif HaveEL(EL3) && ELUsingAArch32(EL3) && SCR.NS == '0' then return EL3; elsif HaveVirtHostExt() && ELIsInHost(el) then return EL2; else return EL1; // S1TranslationRegime() // ===================== // Returns the Exception level controlling the current Stage 1 translation regime. For the most // part this is unused in code because the system register accessors (SCTLR[], etc.) implicitly // return the correct value. bits(2) S1TranslationRegime() return S1TranslationRegime(PSTATE.EL);