Changeset 99862 in vbox for trunk/src/VBox/Additions/WINNT/Graphics/Video

Timestamp:

May 19, 2023 5:31:17 PM (20 months ago)

Author:

vboxsync

Message:

VMSVGA: Avoid recursive acquision of spinlock while processing QueuePending, bugref:10440

File:

• trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/gallium/SvgaFifo.cpp (modified) (2 diffs)

trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/gallium/SvgaFifo.cpp

@@ -462 +462 @@
 }
 
+static void svgaCBSubmitHeaderLocked(PVBOXWDDM_EXT_VMSVGA pSvga, PHYSICAL_ADDRESS CBHeaderPhysAddr, SVGACBContext CBContext)
+{
+    RT_NOREF(pSvga);
+
+    SVGARegWrite(pSvga, SVGA_REG_COMMAND_HIGH, CBHeaderPhysAddr.HighPart);
+    SVGARegWrite(pSvga, SVGA_REG_COMMAND_LOW, CBHeaderPhysAddr.LowPart | CBContext);
+}
+
 static void svgaCBSubmitHeader(PVBOXWDDM_EXT_VMSVGA pSvga, PHYSICAL_ADDRESS CBHeaderPhysAddr, SVGACBContext CBContext)
 {
@@ -820 +828 @@
             RTListAppend(&pCBCtx->QueueSubmitted, &pCB->nodeQueue);
             ++pCBCtx->cSubmitted;
-            svgaCBSubmitHeader(pSvga, pCB->CBHeaderPhysAddr, (SVGACBContext)i);
+            svgaCBSubmitHeaderLocked(pSvga, pCB->CBHeaderPhysAddr, (SVGACBContext)i);
             GALOG(("Submitted pending %p\n", pCB));
         }