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diff --git a/src/VBox/Runtime/testcase/tstRTR0ThreadPreemptionDriver.cpp b/src/VBox/Runtime/testcase/tstRTR0ThreadPreemptionDriver.cpp
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+++ b/src/VBox/Runtime/testcase/tstRTR0ThreadPreemptionDriver.cpp
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+/* $Id: tstRTR0ThreadPreemptionDriver.cpp $ */
+/** @file
+ * IPRT R0 Testcase - Thread Preemption, driver program.
+ */
+
+/*
+ * Copyright (C) 2009-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include <iprt/initterm.h>
+
+#include <iprt/asm.h>
+#include <iprt/cpuset.h>
+#include <iprt/errcore.h>
+#include <iprt/path.h>
+#include <iprt/param.h>
+#include <iprt/stream.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+#include <iprt/time.h>
+#include <iprt/thread.h>
+#ifdef VBOX
+# include <VBox/sup.h>
+# include "tstRTR0ThreadPreemption.h"
+#endif
+
+
+/*********************************************************************************************************************************
+* Global Variables *
+*********************************************************************************************************************************/
+static bool volatile g_fTerminate = false;
+
+
+/**
+ * Try make sure all online CPUs will be engaged.
+ */
+static DECLCALLBACK(int) MyThreadProc(RTTHREAD hSelf, void *pvCpuIdx)
+{
+ RT_NOREF1(hSelf);
+ RTCPUSET Affinity;
+ RTCpuSetEmpty(&Affinity);
+ RTCpuSetAddByIndex(&Affinity, (intptr_t)pvCpuIdx);
+ RTThreadSetAffinity(&Affinity); /* ignore return code as it's not supported on all hosts. */
+
+ while (!g_fTerminate)
+ {
+ uint64_t tsStart = RTTimeMilliTS();
+ do
+ {
+ ASMNopPause();
+ } while (RTTimeMilliTS() - tsStart < 8);
+ RTThreadSleep(4);
+ }
+
+ return VINF_SUCCESS;
+}
+
+
+/**
+ * Entry point.
+ */
+extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
+{
+ RT_NOREF3(argc, argv, envp);
+#ifndef VBOX
+ RTPrintf("tstSup: SKIPPED\n");
+ return 0;
+#else
+ /*
+ * Init.
+ */
+ RTTEST hTest;
+ int rc = RTTestInitAndCreate("tstRTR0ThreadPreemption", &hTest);
+ if (rc)
+ return rc;
+ RTTestBanner(hTest);
+
+ PSUPDRVSESSION pSession;
+ rc = SUPR3Init(&pSession);
+ if (RT_FAILURE(rc))
+ {
+ RTTestFailed(hTest, "SUPR3Init failed with rc=%Rrc\n", rc);
+ return RTTestSummaryAndDestroy(hTest);
+ }
+
+ char szPath[RTPATH_MAX];
+ rc = RTPathExecDir(szPath, sizeof(szPath));
+ if (RT_SUCCESS(rc))
+ rc = RTPathAppend(szPath, sizeof(szPath), "tstRTR0ThreadPreemption.r0");
+ if (RT_FAILURE(rc))
+ {
+ RTTestFailed(hTest, "Failed constructing .r0 filename (rc=%Rrc)", rc);
+ return RTTestSummaryAndDestroy(hTest);
+ }
+
+ void *pvImageBase;
+ rc = SUPR3LoadServiceModule(szPath, "tstRTR0ThreadPreemption",
+ "TSTRTR0ThreadPreemptionSrvReqHandler",
+ &pvImageBase);
+ if (RT_FAILURE(rc))
+ {
+ RTTestFailed(hTest, "SUPR3LoadServiceModule(%s,,,) failed with rc=%Rrc\n", szPath, rc);
+ return RTTestSummaryAndDestroy(hTest);
+ }
+
+ /* test request */
+ struct
+ {
+ SUPR0SERVICEREQHDR Hdr;
+ char szMsg[256];
+ } Req;
+
+ /*
+ * Sanity checks.
+ */
+ RTTestSub(hTest, "Sanity");
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_SANITY_OK, 0, &Req.Hdr), VINF_SUCCESS);
+ if (RT_FAILURE(rc))
+ return RTTestSummaryAndDestroy(hTest);
+ RTTESTI_CHECK_MSG(Req.szMsg[0] == '\0', ("%s", Req.szMsg));
+ if (Req.szMsg[0] != '\0')
+ return RTTestSummaryAndDestroy(hTest);
+
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_SANITY_FAILURE, 0, &Req.Hdr), VINF_SUCCESS);
+ if (RT_FAILURE(rc))
+ return RTTestSummaryAndDestroy(hTest);
+ RTTESTI_CHECK_MSG(!strncmp(Req.szMsg, RT_STR_TUPLE("!42failure42")), ("%s", Req.szMsg));
+ if (strncmp(Req.szMsg, RT_STR_TUPLE("!42failure42")))
+ return RTTestSummaryAndDestroy(hTest);
+
+ /*
+ * Basic tests, bail out on failure.
+ */
+ RTTestSub(hTest, "Basics");
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_BASIC, 0, &Req.Hdr), VINF_SUCCESS);
+ if (RT_FAILURE(rc))
+ return RTTestSummaryAndDestroy(hTest);
+ if (Req.szMsg[0] == '!')
+ {
+ RTTestIFailed("%s", &Req.szMsg[1]);
+ return RTTestSummaryAndDestroy(hTest);
+ }
+ if (Req.szMsg[0])
+ RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
+
+ /*
+ * Is it trusty.
+ */
+ RTTestSub(hTest, "RTThreadPreemptIsPendingTrusty");
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_IS_TRUSTY, 0, &Req.Hdr), VINF_SUCCESS);
+ if (RT_FAILURE(rc))
+ return RTTestSummaryAndDestroy(hTest);
+ if (Req.szMsg[0] == '!')
+ RTTestIFailed("%s", &Req.szMsg[1]);
+ else if (Req.szMsg[0])
+ RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
+
+ /*
+ * Stay in ring-0 until preemption is pending.
+ */
+ RTTHREAD ahThreads[RTCPUSET_MAX_CPUS];
+ RTCPUSET OnlineSet;
+ RTMpGetOnlineSet(&OnlineSet);
+ for (uint32_t i = 0; i < RT_ELEMENTS(ahThreads); i++)
+ {
+ ahThreads[i] = NIL_RTTHREAD;
+ if (RTCpuSetIsMemberByIndex(&OnlineSet, i))
+ RTThreadCreateF(&ahThreads[i], MyThreadProc, (void *)(uintptr_t)i, 0, RTTHREADTYPE_DEFAULT,
+ RTTHREADFLAGS_WAITABLE, "cpu=%u", i);
+ }
+
+
+ RTTestSub(hTest, "Pending Preemption");
+ RTThreadSleep(250); /** @todo fix GIP initialization? */
+ for (int i = 0; ; i++)
+ {
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_IS_PENDING, 0, &Req.Hdr), VINF_SUCCESS);
+ if ( strcmp(Req.szMsg, "!cLoops=1\n")
+ || i >= 64)
+ {
+ if (Req.szMsg[0] == '!')
+ RTTestIFailed("%s", &Req.szMsg[1]);
+ else if (Req.szMsg[0])
+ RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
+ break;
+ }
+ if ((i % 3) == 0)
+ RTThreadYield();
+ else if ((i % 16) == 0)
+ RTThreadSleep(8);
+ }
+
+ ASMAtomicWriteBool(&g_fTerminate, true);
+ for (uint32_t i = 0; i < RT_ELEMENTS(ahThreads); i++)
+ if (ahThreads[i] != NIL_RTTHREAD)
+ RTThreadWait(ahThreads[i], 5000, NULL);
+
+ /*
+ * Test nested RTThreadPreemptDisable calls.
+ */
+ RTTestSub(hTest, "Nested");
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_NESTED, 0, &Req.Hdr), VINF_SUCCESS);
+ if (Req.szMsg[0] == '!')
+ RTTestIFailed("%s", &Req.szMsg[1]);
+ else if (Req.szMsg[0])
+ RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
+
+
+ /*
+ * Test thread-context hooks.
+ */
+ RTTestSub(hTest, "RTThreadCtxHooks");
+ uint64_t u64StartTS = RTTimeMilliTS();
+ uint64_t cMsMax = 60000; /* ca. 1 minute timeout. */
+ uint64_t cMsElapsed;
+ for (unsigned i = 0; i < 50; i++)
+ {
+ Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
+ Req.Hdr.cbReq = sizeof(Req);
+ Req.szMsg[0] = '\0';
+ RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0ThreadPreemption", sizeof("tstRTR0ThreadPreemption") - 1,
+ TSTRTR0THREADPREEMPTION_CTXHOOKS, 0, &Req.Hdr), VINF_SUCCESS);
+ if (RT_FAILURE(rc))
+ return RTTestSummaryAndDestroy(hTest);
+ if (Req.szMsg[0] == '!')
+ RTTestIFailed("%s", &Req.szMsg[1]);
+ else if (Req.szMsg[0])
+ RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
+ if (!(i % 10))
+ RTTestIPrintf(RTTESTLVL_ALWAYS, "RTThreadCtxHooks passed %u iteration(s)\n", i);
+
+ /* Check timeout and bail. */
+ cMsElapsed = RTTimeMilliTS() - u64StartTS;
+ if (cMsElapsed > cMsMax)
+ {
+ RTTestIPrintf(RTTESTLVL_INFO, "RTThreadCtxHooks Stopping iterations. %RU64 ms. for %u iterations.\n",
+ cMsElapsed, i);
+ break;
+ }
+ }
+
+ /*
+ * Done.
+ */
+ return RTTestSummaryAndDestroy(hTest);
+#endif
+}
+
+
+#if !defined(VBOX_WITH_HARDENING) || !defined(RT_OS_WINDOWS)
+/**
+ * Main entry point.
+ */
+int main(int argc, char **argv, char **envp)
+{
+ return TrustedMain(argc, argv, envp);
+}
+#endif
+