Changeset 71607 in vbox for trunk/src/VBox/Devices/Graphics/DevVGA_VBVA.cpp

Timestamp:

Apr 1, 2018 11:38:00 PM (7 years ago)

Author:

vboxsync

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

121634

Message:

DevVGA,SharedOpenGL: Code cleanup in progress. bugref:9094

File:

• trunk/src/VBox/Devices/Graphics/DevVGA_VBVA.cpp (modified) (5 diffs)

trunk/src/VBox/Devices/Graphics/DevVGA_VBVA.cpp

@@ -2569 +2569 @@
             {
                 VBVAENABLE RT_UNTRUSTED_VOLATILE_GUEST *pVbvaEnable = (VBVAENABLE RT_UNTRUSTED_VOLATILE_GUEST *)pvBuffer;
-
-                uint32_t       u32ScreenId;
                 const uint32_t u32Flags = pVbvaEnable->u32Flags;
+                RT_UNTRUSTED_NONVOLATILE_COPY_FENCE();
+
+                uint32_t u32ScreenId;
                 if (u32Flags & VBVA_F_EXTENDED)
                 {
@@ -2621 +2622 @@
                 VBVACAPS RT_UNTRUSTED_VOLATILE_GUEST *pCaps = (VBVACAPS RT_UNTRUSTED_VOLATILE_GUEST *)pvBuffer;
                 pVGAState->fGuestCaps = pCaps->fCaps;
+                RT_UNTRUSTED_NONVOLATILE_COPY_FENCE();
+
                 pVGAState->pDrv->pfnVBVAGuestCapabilityUpdate(pVGAState->pDrv, pVGAState->fGuestCaps);
                 pCaps->rc = rc = VINF_SUCCESS;
@@ -2634 +2637 @@
                 VBVASCANLINECFG RT_UNTRUSTED_VOLATILE_GUEST *pCfg = (VBVASCANLINECFG RT_UNTRUSTED_VOLATILE_GUEST *)pvBuffer;
                 pVGAState->fScanLineCfg = pCfg->fFlags;
+                RT_UNTRUSTED_NONVOLATILE_COPY_FENCE();
+
                 pCfg->rc = rc = VINF_SUCCESS;
             }
@@ -2664 +2669 @@
                     inputMapping.cy = pInputMapping->cy;
                 }
-                ASMCompilerBarrier();
+                RT_UNTRUSTED_NONVOLATILE_COPY_FENCE();
 
                 LogRelFlowFunc(("VBVA: ChannelHandler: VBVA_REPORT_INPUT_MAPPING: x=%RI32, y=%RI32, cx=%RU32, cy=%RU32\n",
@@ -2685 +2690 @@
                 Report.x               = pReport->x;
                 Report.y               = pReport->y;
-                ASMCompilerBarrier();
+                RT_UNTRUSTED_NONVOLATILE_COPY_FENCE();
 
                 LogRelFlowFunc(("VBVA: ChannelHandler: VBVA_CURSOR_POSITION: fReportPosition=%RTbool, x=%RU32, y=%RU32\n",