vbox6: remove redundant ahci/serial patches

The issue alleviated by the patches was fixed by

  5fed1641a4 virtualbox6: reduce 'Vm_connection' priority

Issue #4361

repos/ports/ports/virtualbox6.hash

@@ -1 +1 @@
-ee399455b46b3f366f0423567e06608b0bf1a853
+db7d6d9b9ab32c34fcfb371dfc9e100b208ee982

repos/ports/src/virtualbox6/patches/devahci.patch

@@ -1,111 +0,0 @@
-Patch for DevAHCI model to really kick the consumer of requests
-
-+++ a/src/virtualbox6/src/VBox/Devices/Storage/DevAHCI.cpp
-+++ b/src/virtualbox6/src/VBox/Devices/Storage/DevAHCI.cpp
-@@ -384,6 +384,7 @@
- 
-     /** The event semaphore the processing thread waits on. */
-     SUPSEMEVENT                     hEvtProcess;
-+    SUPSEMEVENT                     hEvtProcessAck;
- 
-     /** The serial numnber to use for IDENTIFY DEVICE commands. */
-     char                            szSerialNumber[AHCI_SERIAL_NUMBER_LENGTH+1]; /** < one extra byte for termination */
-@@ -1048,6 +1049,7 @@
- {
-     LogFlowFunc(("Signal event semaphore\n"));
-     int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcess);
-+    PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pAhciPort->hEvtProcessAck, 15 /* ms */);
-     AssertRC(rc);
- }
- 
-@@ -1324,6 +1326,7 @@
-                     ASMAtomicOrU32(&pAhciPort->u32TasksNew, pAhciPort->regCI);
-                     LogFlowFunc(("Signal event semaphore\n"));
-                     int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcess);
-+                    PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pAhciPort->hEvtProcessAck, 15 /* ms */);
-                     AssertRC(rc);
-                 }
-             }
-@@ -1480,6 +1483,13 @@
-  */
- static VBOXSTRICTRC PortIntrSts_r(PPDMDEVINS pDevIns, PAHCI pThis, PAHCIPORT pAhciPort, uint32_t iReg, uint32_t *pu32Value)
- {
-+	if (pAhciPort->regIS == 0) {
-+		if (pAhciPort->hEvtProcess != NIL_SUPSEMEVENT) {
-+			PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcess);
-+			PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pAhciPort->hEvtProcessAck, 15 /* ms */);
-+		}
-+	}
-+
-     RT_NOREF(pDevIns, pThis, iReg);
-     ahciLog(("%s: read regIS=%#010x\n", __FUNCTION__, pAhciPort->regIS));
-     ahciLog(("%s: CPDS=%d TFES=%d HBFS=%d HBDS=%d IFS=%d INFS=%d OFS=%d IPMS=%d PRCS=%d DIS=%d PCS=%d DPS=%d UFS=%d SDBS=%d DSS=%d PSS=%d DHRS=%d\n",
-@@ -4518,6 +4528,7 @@
-         {
-             Assert(ASMAtomicReadBool(&pAhciPort->fWrkThreadSleeping));
-             rc = PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pAhciPort->hEvtProcess, RT_INDEFINITE_WAIT);
-+            PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcessAck);
-             AssertLogRelMsgReturn(RT_SUCCESS(rc) || rc == VERR_INTERRUPTED, ("%Rrc\n", rc), rc);
-             if (RT_UNLIKELY(pThread->enmState != PDMTHREADSTATE_RUNNING))
-                 break;
-@@ -4639,7 +4650,9 @@
-     PAHCIPORTR3 pAhciPortR3 = (PAHCIPORTR3)pThread->pvUser;
-     PAHCI       pThis       = PDMDEVINS_2_DATA(pDevIns, PAHCI);
-     PAHCIPORT   pAhciPort   = &RT_SAFE_SUBSCRIPT(pThis->aPorts, pAhciPortR3->iLUN);
--    return PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcess);
-+    int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcess);
-+    PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pAhciPort->hEvtProcessAck, 15 /* ms */);
-+    return rc;
- }
- 
- /* -=-=-=-=- DBGF -=-=-=-=- */
-@@ -5339,6 +5352,7 @@
- 
-             /* Notify the async IO thread. */
-             int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pAhciPort->hEvtProcess);
-+            PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pAhciPort->hEvtProcessAck, 15 /* ms */);
-             AssertRC(rc);
-         }
-     }
-@@ -5577,6 +5591,10 @@
-         if (RT_FAILURE(rc))
-             return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
-                                        N_("AHCI: Failed to create SUP event semaphore"));
-+        rc = PDMDevHlpSUPSemEventCreate(pDevIns, &pAhciPort->hEvtProcessAck);
-+        if (RT_FAILURE(rc))
-+            return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
-+                                       N_("AHCI: Failed to create SUP event semaphore"));
- 
-         /* Create the async IO thread. */
-         rc = PDMDevHlpThreadCreate(pDevIns, &pAhciPortR3->pAsyncIOThread, pAhciPortR3, ahciAsyncIOLoop,
-@@ -5724,6 +5742,11 @@
-                 PDMDevHlpSUPSemEventClose(pDevIns, pAhciPort->hEvtProcess);
-                 pAhciPort->hEvtProcess = NIL_SUPSEMEVENT;
-             }
-+            if (pAhciPort->hEvtProcessAck != NIL_SUPSEMEVENT)
-+            {
-+                PDMDevHlpSUPSemEventClose(pDevIns, pAhciPort->hEvtProcessAck);
-+                pAhciPort->hEvtProcessAck = NIL_SUPSEMEVENT;
-+            }
-         }
- 
-         PDMDevHlpCritSectDelete(pDevIns, &pThis->lock);
-@@ -5805,6 +5828,7 @@
-         pAhciPortR3->pDrvBase           = NULL;
-         pAhciPortR3->pAsyncIOThread     = NULL;
-         pAhciPort->hEvtProcess          = NIL_SUPSEMEVENT;
-+        pAhciPort->hEvtProcessAck       = NIL_SUPSEMEVENT;
-         pAhciPort->fHotpluggable        = true;
-     }
- 
-@@ -6009,6 +6033,10 @@
-             if (RT_FAILURE(rc))
-                 return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
-                                            N_("AHCI: Failed to create SUP event semaphore"));
-+            rc = PDMDevHlpSUPSemEventCreate(pDevIns, &pAhciPort->hEvtProcessAck);
-+            if (RT_FAILURE(rc))
-+                return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
-+                                           N_("AHCI: Failed to create SUP event semaphore"));
- 
-             rc = PDMDevHlpThreadCreate(pDevIns, &pAhciPortR3->pAsyncIOThread, pAhciPortR3, ahciAsyncIOLoop,
-                                        ahciAsyncIOLoopWakeUp, 0, RTTHREADTYPE_IO, pAhciPortR3->szDesc);

repos/ports/src/virtualbox6/patches/serial.patch

@@ -1,60 +0,0 @@
-Patch for serial raw-file backend to really kick the consumer of the FIFO to
-consume the (mostly one-byte) content by waiting for an acknowledgement. This
-prevents guests that poll the UART LSR.THRE before writing the next character
-into the FIFO from redundant exits due to a not processing UART state machine.
-The original implementation alleviates this behavior wih RTYield() on LSR read.
-
---- a/src/virtualbox6/src/VBox/Devices/Serial/DrvRawFile.cpp
-+++ b/src/virtualbox6/src/VBox/Devices/Serial/DrvRawFile.cpp
-@@ -58,6 +58,7 @@
-     RTFILE              hOutputFile;
-     /** Event semaphore for the poll interface. */
-     RTSEMEVENT          hSemEvtPoll;
-+    RTSEMEVENT          hSemEvtPollAck;
- } DRVRAWFILE, *PDRVRAWFILE;
- 
- 
-@@ -78,7 +79,9 @@
-         return VINF_SUCCESS;
-     }
- 
--    return RTSemEventWait(pThis->hSemEvtPoll, cMillies);
-+    int rc = RTSemEventWait(pThis->hSemEvtPoll, cMillies);
-+    RTSemEventSignal(pThis->hSemEvtPollAck);
-+    return rc;
- }
- 
- 
-@@ -86,7 +89,9 @@
- static DECLCALLBACK(int) drvRawFilePollInterrupt(PPDMISTREAM pInterface)
- {
-     PDRVRAWFILE pThis = RT_FROM_MEMBER(pInterface, DRVRAWFILE, IStream);
--    return RTSemEventSignal(pThis->hSemEvtPoll);
-+    int rc =  RTSemEventSignal(pThis->hSemEvtPoll);
-+    RTSemEventWait(pThis->hSemEvtPollAck, RT_INDEFINITE_WAIT);
-+    return rc;
- }
- 
- 
-@@ -177,6 +182,12 @@
-         RTSemEventDestroy(pThis->hSemEvtPoll);
-         pThis->hSemEvtPoll = NIL_RTSEMEVENT;
-     }
-+
-+    if (pThis->hSemEvtPollAck != NIL_RTSEMEVENT)
-+    {
-+        RTSemEventDestroy(pThis->hSemEvtPollAck);
-+        pThis->hSemEvtPollAck = NIL_RTSEMEVENT;
-+    }
- }
- 
- 
-@@ -217,6 +228,8 @@
- 
-      rc = RTSemEventCreate(&pThis->hSemEvtPoll);
-      AssertRCReturn(rc, rc);
-+     rc = RTSemEventCreate(&pThis->hSemEvtPollAck);
-+     AssertRCReturn(rc, rc);
- 
-     /*
-      * Open the raw file.

repos/ports/src/virtualbox6/patches/series

@@ -1,9 +1,7 @@
-serial.patch
 drvtap.patch
 qemu-xhci.patch
 narrowing.patch
 network.patch
-devahci.patch
 smp_sipi.patch
 tm_poke.patch
 exec_state.patch