Changeset 102733 in vbox for trunk/src/VBox/VMM/include/IEMN8veRecompilerEmit.h

Timestamp:

Dec 29, 2023 7:40:03 PM (14 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implemented making the TLB-missed call w/o trashing/flushing stuff in volatile registers. bugref:10371

File:

• trunk/src/VBox/VMM/include/IEMN8veRecompilerEmit.h (modified) (4 diffs)

trunk/src/VBox/VMM/include/IEMN8veRecompilerEmit.h

@@ -4301 +4301 @@
 DECL_FORCE_INLINE_THROW(uint32_t)
 iemNativeEmitLoadArgGregFromStackVar(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t idxRegArg, uint8_t idxVar,
-                                     int32_t offAddend = 0, bool fVarAllowInVolatileReg = false)
+                                     int32_t offAddend = 0, uint32_t fHstVolatileRegsAllowed = UINT32_MAX,
+                                     bool fSpilledVarsInVolatileRegs = false)
 {
     IEMNATIVE_ASSERT_VAR_IDX(pReNative, idxVar);
@@ -4308 +4309 @@
 
     uint8_t const idxRegVar = pReNative->Core.aVars[idxVar].idxReg;
-    if (idxRegVar < RT_ELEMENTS(pReNative->Core.aHstRegs))
-    {
-        Assert(!(RT_BIT_32(idxRegVar) & IEMNATIVE_CALL_VOLATILE_GREG_MASK) || fVarAllowInVolatileReg);
-        RT_NOREF(fVarAllowInVolatileReg);
+    if (   idxRegVar < RT_ELEMENTS(pReNative->Core.aHstRegs)
+        && (   (RT_BIT_32(idxRegVar) & (~IEMNATIVE_CALL_VOLATILE_GREG_MASK | fHstVolatileRegsAllowed))
+            || !fSpilledVarsInVolatileRegs ))
+    {
+        AssertStmt(   !(RT_BIT_32(idxRegVar) & IEMNATIVE_CALL_VOLATILE_GREG_MASK)
+                   || (RT_BIT_32(idxRegVar) & fHstVolatileRegsAllowed),
+                   IEMNATIVE_DO_LONGJMP(pReNative,  VERR_IEM_REG_IPE_13));
         if (!offAddend)
         {
@@ -4339 +4343 @@
 DECL_FORCE_INLINE_THROW(uint32_t)
 iemNativeEmitLoadArgGregFromImmOrStackVar(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t idxRegArg, uint8_t idxVar,
-                                          int32_t offAddend = 0, bool fVarAllowInVolatileReg = false)
+                                          int32_t offAddend = 0, uint32_t fHstVolatileRegsAllowed = 0,
+                                          bool fSpilledVarsInVolatileRegs = false)
 {
     IEMNATIVE_ASSERT_VAR_IDX(pReNative, idxVar);
@@ -4345 +4350 @@
         off = iemNativeEmitLoadGprImm64(pReNative, off, idxRegArg, pReNative->Core.aVars[idxVar].u.uValue + offAddend);
     else
-        off = iemNativeEmitLoadArgGregFromStackVar(pReNative, off, idxRegArg, idxVar, offAddend, fVarAllowInVolatileReg);
+        off = iemNativeEmitLoadArgGregFromStackVar(pReNative, off, idxRegArg, idxVar, offAddend,
+                                                   fHstVolatileRegsAllowed, fSpilledVarsInVolatileRegs);
     return off;
 }