Changeset 68470 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Aug 18, 2017 2:05:49 PM (8 years ago)

Author:

vboxsync

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

117615

Message:

PDM: add new PDM device helper for sending a MSI directly (from all contexts, as all contexts support such interrupt delivery)

File:

• trunk/src/VBox/VMM/VMMR3/PDMDevHlp.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/VMMR3/PDMDevHlp.cpp

@@ -1814 +1814 @@
 {
     pdmR3DevHlp_ISASetIrq(pDevIns, iIrq, iLevel);
+}
+
+
+/** @interface_method_impl{PDMDEVHLPR3,pfnIoApicSendMsi} */
+static DECLCALLBACK(void) pdmR3DevHlp_IoApicSendMsi(PPDMDEVINS pDevIns, RTGCPHYS GCPhys, uint32_t uValue)
+{
+    PDMDEV_ASSERT_DEVINS(pDevIns);
+    LogFlow(("pdmR3DevHlp_IoApicSendMsi: caller='%s'/%d: GCPhys=%RGp uValue=%#x\n", pDevIns->pReg->szName, pDevIns->iInstance, GCPhys, uValue));
+
+    /*
+     * Validate input.
+     */
+    Assert(GCPhys != 0);
+    Assert(uValue != 0);
+
+    PVM pVM = pDevIns->Internal.s.pVMR3;
+
+    /*
+     * Do the job.
+     */
+    pdmLock(pVM);
+    uint32_t uTagSrc;
+    pDevIns->Internal.s.uLastIrqTag = uTagSrc = pdmCalcIrqTag(pVM, pDevIns->idTracing);
+    VBOXVMM_PDM_IRQ_HILO(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
+
+    PDMIoApicSendMsi(pVM, GCPhys, uValue, uTagSrc);  /* (The API takes the lock recursively.) */
+
+    pdmUnlock(pVM);
+
+    LogFlow(("pdmR3DevHlp_IoApicSendMsi: caller='%s'/%d: returns void\n", pDevIns->pReg->szName, pDevIns->iInstance));
+}
+
+
+/** @interface_method_impl{PDMDEVHLPR3,pfnIoApicSendMsiNoWait} */
+static DECLCALLBACK(void) pdmR3DevHlp_IoApicSendMsiNoWait(PPDMDEVINS pDevIns, RTGCPHYS GCPhys, uint32_t uValue)
+{
+    pdmR3DevHlp_IoApicSendMsi(pDevIns, GCPhys, uValue);
 }
 
@@ -3689 +3726 @@
     pdmR3DevHlp_VMGetResumeReason,
     pdmR3DevHlp_MMIOExReduce,
-    0,
-    0,
+    pdmR3DevHlp_IoApicSendMsi,
+    pdmR3DevHlp_IoApicSendMsiNoWait,
     0,
     0,
@@ -3946 +3983 @@
     pdmR3DevHlp_VMGetResumeReason,
     pdmR3DevHlp_MMIOExReduce,
-    0,
-    0,
+    pdmR3DevHlp_IoApicSendMsi,
+    pdmR3DevHlp_IoApicSendMsiNoWait,
     0,
     0,