Changeset 102663 in vbox for trunk/src/VBox/VMM/include

Timestamp:

Dec 21, 2023 1:55:07 AM (17 months ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

160825

Message:

VMM/IEM: Working on BODY_CHECK_PC_AFTER_BRANCH and sideeffects of it. Fixed bug in 8-bit register stores (AMD64). Fixed bug in iemNativeEmitBltInCheckOpcodes (AMD64). Added a way to inject state logging between each instruction, currently only really implemented for AMD64. Relaxed the heave flushing code, no need to set the buffer pointer to NULL. Started looking at avoiding code TLB flushing when allocating memory to replace zero pages. bugref:10371

Location:

trunk/src/VBox/VMM/include

Files:

• IEMInternal.h (modified) (3 diffs)
• IEMN8veRecompiler.h (modified) (2 diffs)

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

@@ -700 +700 @@
 #define IEM_F_MODE_X86_64BIT                UINT32_C(0x0000000a)
 
+/** X86 Mode: Checks if @a a_fExec represent a FLAT mode. */
+#define IEM_F_MODE_X86_IS_FLAT(a_fExec)     (   ((a_fExec) & IEM_F_MODE_MASK) == IEM_F_MODE_X86_64BIT \
+                                             || ((a_fExec) & IEM_F_MODE_MASK) == IEM_F_MODE_X86_32BIT_PROT_FLAT \
+                                             || ((a_fExec) & IEM_F_MODE_MASK) == IEM_F_MODE_X86_32BIT_FLAT)
 
 /** Bypass access handlers when set. */
@@ -1391 +1395 @@
     RTGCPHYS                GCPhysInstrBuf;                                                                 /* 0x20 */
     /** The number of bytes available at pbInstrBuf in total (for IEMExecLots).
-     * This takes the CS segment limit into account. */
+     * This takes the CS segment limit into account.
+     * @note Set to zero when the code TLB is flushed to trigger TLB reload. */
     uint16_t                cbInstrBufTotal;                                                                /* 0x28 */
 # ifndef IEM_WITH_OPAQUE_DECODER_STATE
@@ -5627 +5632 @@
 
 
+IEM_DECL_IEMTHREADEDFUNC_PROTO(iemThreadedFunc_BltIn_Nop);
+IEM_DECL_IEMTHREADEDFUNC_PROTO(iemThreadedFunc_BltIn_LogCpuState);
+
 IEM_DECL_IEMTHREADEDFUNC_PROTO(iemThreadedFunc_BltIn_DeferToCImpl0);
 

trunk/src/VBox/VMM/include/IEMN8veRecompiler.h

@@ -312 +312 @@
     kIemNativeLabelType_ObsoleteTb,
     kIemNativeLabelType_NeedCsLimChecking,
+    kIemNativeLabelType_CheckBranchMiss,
     /* Labels with data, potentially multiple instances per TB: */
     kIemNativeLabelType_FirstWithMultipleInstances,
@@ -838 +839 @@
                                                    uint64_t uParam0, uint64_t uParam1, uint64_t uParam2);
 
+IEM_DECL_IEMNATIVERECOMPFUNC_PROTO(iemNativeRecompFunc_BltIn_Nop);
+IEM_DECL_IEMNATIVERECOMPFUNC_PROTO(iemNativeRecompFunc_BltIn_LogCpuState);
 IEM_DECL_IEMNATIVERECOMPFUNC_PROTO(iemNativeRecompFunc_BltIn_DeferToCImpl0);
 IEM_DECL_IEMNATIVERECOMPFUNC_PROTO(iemNativeRecompFunc_BltIn_CheckIrq);