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+/* $Id: VMMDevTesting.h $ */
+/** @file
+ * VMMDev - Testing Extensions.
+ */
+
+/*
+ * Copyright (C) 2010-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox 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.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef VBOX_INCLUDED_VMMDevTesting_h
+#define VBOX_INCLUDED_VMMDevTesting_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <VBox/types.h>
+
+
+/** @defgroup grp_vmmdev_testing VMM Device Testing
+ * @ingroup grp_vmmdev
+ * @{
+ */
+
+/** The base address of the MMIO range used for testing.
+ * @remarks This used to be at 0x101000 but moved to 0xdf000 so that it would
+ * work better with prototype NEM code. This also means enabling A20
+ * is not a requirement. */
+#define VMMDEV_TESTING_MMIO_BASE UINT32_C(0x000df000)
+/** The size of the MMIO range used for testing. */
+#define VMMDEV_TESTING_MMIO_SIZE UINT32_C(0x00001000)
+
+/** MMIO offset: The NOP register - 1248 RW. */
+#define VMMDEV_TESTING_MMIO_OFF_NOP (0x000)
+/** MMIO offset: The go-to-ring-3-NOP register - 1248 RW. */
+#define VMMDEV_TESTING_MMIO_OFF_NOP_R3 (0x008)
+/** MMIO offset: The readback registers - 64 bytes of read/write "memory". */
+#define VMMDEV_TESTING_MMIO_OFF_READBACK (0x040)
+/** MMIO offset: Readback register view that always goes to ring-3. */
+#define VMMDEV_TESTING_MMIO_OFF_READBACK_R3 (0x080)
+/** The size of the MMIO readback registers. */
+#define VMMDEV_TESTING_READBACK_SIZE (0x40)
+
+/** Default address of VMMDEV_TESTING_MMIO_OFF_NOP. */
+#define VMMDEV_TESTING_MMIO_NOP (VMMDEV_TESTING_MMIO_BASE + VMMDEV_TESTING_MMIO_OFF_NOP)
+/** Default address of VMMDEV_TESTING_MMIO_OFF_NOP_R3. */
+#define VMMDEV_TESTING_MMIO_NOP_R3 (VMMDEV_TESTING_MMIO_BASE + VMMDEV_TESTING_MMIO_OFF_NOP_R3)
+/** Default address of VMMDEV_TESTING_MMIO_OFF_READBACK. */
+#define VMMDEV_TESTING_MMIO_READBACK (VMMDEV_TESTING_MMIO_BASE + VMMDEV_TESTING_MMIO_OFF_READBACK)
+/** Default address of VMMDEV_TESTING_MMIO_OFF_READBACK_R3. */
+#define VMMDEV_TESTING_MMIO_READBACK_R3 (VMMDEV_TESTING_MMIO_BASE + VMMDEV_TESTING_MMIO_OFF_READBACK_R3)
+
+/** The real mode selector to use. */
+#define VMMDEV_TESTING_MMIO_RM_SEL 0xdf00
+/** Calculate the real mode offset of a MMIO register. */
+#define VMMDEV_TESTING_MMIO_RM_OFF(val) ((val) - VMMDEV_TESTING_MMIO_BASE)
+/** Calculate the real mode offset of a MMIO register offset. */
+#define VMMDEV_TESTING_MMIO_RM_OFF2(off) (off)
+
+/** The base port of the I/O range used for testing. */
+#define VMMDEV_TESTING_IOPORT_BASE 0x0510
+/** The number of I/O ports reserved for testing. */
+#define VMMDEV_TESTING_IOPORT_COUNT 0x0010
+/** The NOP I/O port - 1,2,4 RW. */
+#define VMMDEV_TESTING_IOPORT_NOP (VMMDEV_TESTING_IOPORT_BASE + 0)
+/** The low nanosecond timestamp - 4 RO. */
+#define VMMDEV_TESTING_IOPORT_TS_LOW (VMMDEV_TESTING_IOPORT_BASE + 1)
+/** The high nanosecond timestamp - 4 RO. Read this after the low one! */
+#define VMMDEV_TESTING_IOPORT_TS_HIGH (VMMDEV_TESTING_IOPORT_BASE + 2)
+/** Command register usually used for preparing the data register - 4/2 WO. */
+#define VMMDEV_TESTING_IOPORT_CMD (VMMDEV_TESTING_IOPORT_BASE + 3)
+/** Data register which use depends on the current command - 1s, 4 WO. */
+#define VMMDEV_TESTING_IOPORT_DATA (VMMDEV_TESTING_IOPORT_BASE + 4)
+/** The go-to-ring-3-NOP I/O port - 1,2,4 RW. */
+#define VMMDEV_TESTING_IOPORT_NOP_R3 (VMMDEV_TESTING_IOPORT_BASE + 5)
+/** Take the VMMDev lock in arrival context and return - 1,2,4 RW.
+ * Writing configures counter action by a thread taking the lock to trigger
+ * contention:
+ * - bits 15:0: Number of microseconds thread should hold lock.
+ * - bits 31:16: Number of microseconds thread should wait before locking
+ * again. */
+#define VMMDEV_TESTING_IOPORT_LOCKED_LO (VMMDEV_TESTING_IOPORT_BASE + 6)
+/** Take the VMMDev lock in arrival context and return - 1,2,4 RW.
+ * Writing configures counter action by a thread taking the lock to trigger
+ * contention:
+ * - bits 19:0: Number of kilo (1024) ticks the EMT should hold lock.
+ * - bits 25:20: Reserved, must be zero.
+ * - bit 26: Thread takes lock in shared mode when set, exclusive when clear.
+ * - bit 27: EMT takes lock in shared mode when set, exclusive when clear.
+ * - bit 28: Use read/write critical section when set, device section if clear.
+ * - bit 29: EMT passes VINF_SUCCESS as rcBusy when set.
+ * - bit 30: Makes thread poke all EMTs before release lock.
+ * - bit 31: Enables the thread. */
+#define VMMDEV_TESTING_IOPORT_LOCKED_HI (VMMDEV_TESTING_IOPORT_BASE + 7)
+
+/** @name Commands.
+ * @{ */
+/** Initialize test, sending name (zero terminated string). (RTTestCreate) */
+#define VMMDEV_TESTING_CMD_INIT UINT32_C(0xcab1e000)
+/** Test done, sending 32-bit total error count with it. (RTTestSummaryAndDestroy) */
+#define VMMDEV_TESTING_CMD_TERM UINT32_C(0xcab1e001)
+/** Start a new sub-test, sending name (zero terminated string). (RTTestSub) */
+#define VMMDEV_TESTING_CMD_SUB_NEW UINT32_C(0xcab1e002)
+/** Sub-test is done, sending 32-bit error count for it. (RTTestDone) */
+#define VMMDEV_TESTING_CMD_SUB_DONE UINT32_C(0xcab1e003)
+/** Report a failure, sending reason (zero terminated string). (RTTestFailed) */
+#define VMMDEV_TESTING_CMD_FAILED UINT32_C(0xcab1e004)
+/** Report a value, sending the 64-bit value (2x4), the 32-bit unit (4), and
+ * finally the name (zero terminated string). (RTTestValue) */
+#define VMMDEV_TESTING_CMD_VALUE UINT32_C(0xcab1e005)
+/** Report a failure, sending reason (zero terminated string). (RTTestSkipped) */
+#define VMMDEV_TESTING_CMD_SKIPPED UINT32_C(0xcab1e006)
+/** Report a value found in a VMM register, sending a string on the form
+ * "value-name:register-name". */
+#define VMMDEV_TESTING_CMD_VALUE_REG UINT32_C(0xcab1e007)
+/** Print string, sending a string including newline. (RTTestPrintf) */
+#define VMMDEV_TESTING_CMD_PRINT UINT32_C(0xcab1e008)
+/** Query a config value, sending a 16-bit word (VMMDEV_TESTING_CFG_XXX) to the
+ * DATA port and reading back the result. */
+#define VMMDEV_TESTING_CMD_QUERY_CFG UINT32_C(0xcab1e009)
+
+/** The magic part of the command. */
+#define VMMDEV_TESTING_CMD_MAGIC UINT32_C(0xcab1e000)
+/** The magic part of the command. */
+#define VMMDEV_TESTING_CMD_MAGIC_MASK UINT32_C(0xffffff00)
+/** The magic high word automatically supplied to 16-bit CMD writes. */
+#define VMMDEV_TESTING_CMD_MAGIC_HI_WORD UINT32_C(0xcab10000)
+/** @} */
+
+/** @name Value units
+ * @note Same as RTTESTUNIT, see rules here for adding new units.
+ * @{ */
+#define VMMDEV_TESTING_UNIT_PCT UINT8_C(0x01) /**< Percentage. */
+#define VMMDEV_TESTING_UNIT_BYTES UINT8_C(0x02) /**< Bytes. */
+#define VMMDEV_TESTING_UNIT_BYTES_PER_SEC UINT8_C(0x03) /**< Bytes per second. */
+#define VMMDEV_TESTING_UNIT_KILOBYTES UINT8_C(0x04) /**< Kilobytes. */
+#define VMMDEV_TESTING_UNIT_KILOBYTES_PER_SEC UINT8_C(0x05) /**< Kilobytes per second. */
+#define VMMDEV_TESTING_UNIT_MEGABYTES UINT8_C(0x06) /**< Megabytes. */
+#define VMMDEV_TESTING_UNIT_MEGABYTES_PER_SEC UINT8_C(0x07) /**< Megabytes per second. */
+#define VMMDEV_TESTING_UNIT_PACKETS UINT8_C(0x08) /**< Packets. */
+#define VMMDEV_TESTING_UNIT_PACKETS_PER_SEC UINT8_C(0x09) /**< Packets per second. */
+#define VMMDEV_TESTING_UNIT_FRAMES UINT8_C(0x0a) /**< Frames. */
+#define VMMDEV_TESTING_UNIT_FRAMES_PER_SEC UINT8_C(0x0b) /**< Frames per second. */
+#define VMMDEV_TESTING_UNIT_OCCURRENCES UINT8_C(0x0c) /**< Occurrences. */
+#define VMMDEV_TESTING_UNIT_OCCURRENCES_PER_SEC UINT8_C(0x0d) /**< Occurrences per second. */
+#define VMMDEV_TESTING_UNIT_CALLS UINT8_C(0x0e) /**< Calls. */
+#define VMMDEV_TESTING_UNIT_CALLS_PER_SEC UINT8_C(0x0f) /**< Calls per second. */
+#define VMMDEV_TESTING_UNIT_ROUND_TRIP UINT8_C(0x10) /**< Round trips. */
+#define VMMDEV_TESTING_UNIT_SECS UINT8_C(0x11) /**< Seconds. */
+#define VMMDEV_TESTING_UNIT_MS UINT8_C(0x12) /**< Milliseconds. */
+#define VMMDEV_TESTING_UNIT_NS UINT8_C(0x13) /**< Nanoseconds. */
+#define VMMDEV_TESTING_UNIT_NS_PER_CALL UINT8_C(0x14) /**< Nanoseconds per call. */
+#define VMMDEV_TESTING_UNIT_NS_PER_FRAME UINT8_C(0x15) /**< Nanoseconds per frame. */
+#define VMMDEV_TESTING_UNIT_NS_PER_OCCURRENCE UINT8_C(0x16) /**< Nanoseconds per occurrence. */
+#define VMMDEV_TESTING_UNIT_NS_PER_PACKET UINT8_C(0x17) /**< Nanoseconds per frame. */
+#define VMMDEV_TESTING_UNIT_NS_PER_ROUND_TRIP UINT8_C(0x18) /**< Nanoseconds per round trip. */
+#define VMMDEV_TESTING_UNIT_INSTRS UINT8_C(0x19) /**< Instructions. */
+#define VMMDEV_TESTING_UNIT_INSTRS_PER_SEC UINT8_C(0x1a) /**< Instructions per second. */
+#define VMMDEV_TESTING_UNIT_NONE UINT8_C(0x1b) /**< No unit. */
+#define VMMDEV_TESTING_UNIT_PP1K UINT8_C(0x1c) /**< Parts per thousand (10^-3). */
+#define VMMDEV_TESTING_UNIT_PP10K UINT8_C(0x1d) /**< Parts per ten thousand (10^-4). */
+#define VMMDEV_TESTING_UNIT_PPM UINT8_C(0x1e) /**< Parts per million (10^-6). */
+#define VMMDEV_TESTING_UNIT_PPB UINT8_C(0x1f) /**< Parts per billion (10^-9). */
+#define VMMDEV_TESTING_UNIT_TICKS UINT8_C(0x20) /**< CPU ticks. */
+#define VMMDEV_TESTING_UNIT_TICKS_PER_CALL UINT8_C(0x21) /**< CPU ticks per call. */
+#define VMMDEV_TESTING_UNIT_TICKS_PER_OCCURENCE UINT8_C(0x22) /**< CPU ticks per occurence. */
+#define VMMDEV_TESTING_UNIT_PAGES UINT8_C(0x23) /**< Page count. */
+#define VMMDEV_TESTING_UNIT_PAGES_PER_SEC UINT8_C(0x24) /**< Pages per second. */
+#define VMMDEV_TESTING_UNIT_TICKS_PER_PAGE UINT8_C(0x25) /**< CPU ticks per page. */
+#define VMMDEV_TESTING_UNIT_NS_PER_PAGE UINT8_C(0x26) /**< Nanoseconds per page. */
+#define VMMDEV_TESTING_UNIT_PS UINT8_C(0x27) /**< Picoseconds. */
+#define VMMDEV_TESTING_UNIT_PS_PER_CALL UINT8_C(0x28) /**< Picoseconds per call. */
+#define VMMDEV_TESTING_UNIT_PS_PER_FRAME UINT8_C(0x29) /**< Picoseconds per frame. */
+#define VMMDEV_TESTING_UNIT_PS_PER_OCCURRENCE UINT8_C(0x2a) /**< Picoseconds per occurrence. */
+#define VMMDEV_TESTING_UNIT_PS_PER_PACKET UINT8_C(0x2b) /**< Picoseconds per frame. */
+#define VMMDEV_TESTING_UNIT_PS_PER_ROUND_TRIP UINT8_C(0x2c) /**< Picoseconds per round trip. */
+#define VMMDEV_TESTING_UNIT_PS_PER_PAGE UINT8_C(0x2d) /**< Picoseconds per page. */
+/** @} */
+
+/** What the NOP accesses returns. */
+#define VMMDEV_TESTING_NOP_RET UINT32_C(0x64726962) /* bird */
+
+/** @name Low and High Locking Control Dwords
+ * @{ */
+/** Low Locking Control: Thread lock hold interval in microseconds. */
+#define VMMDEV_TESTING_LOCKED_LO_HOLD_MASK UINT32_C(0x0000ffff)
+/** Low Locking Control: Thread wait time in microseconds between locking
+ * attempts. */
+#define VMMDEV_TESTING_LOCKED_LO_WAIT_MASK UINT32_C(0xffff0000)
+/** Low Locking Control: Thread wait time shift count. */
+#define VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT 16
+/** High Locking Control: Kilo (1024) ticks the EMT should hold the lock. */
+#define VMMDEV_TESTING_LOCKED_HI_TICKS_MASK UINT32_C(0x000fffff)
+/** High Locking Control: Must be zero. */
+#define VMMDEV_TESTING_LOCKED_HI_MBZ_MASK UINT32_C(0x03f00000)
+/** High Locking Control: Thread takes lock in shared mode when set, exclusive
+ * when clear. */
+#define VMMDEV_TESTING_LOCKED_HI_THREAD_SHARED UINT32_C(0x04000000)
+/** High Locking Control: EMT takes lock in shared mode when set, exclusive
+ * when clear. */
+#define VMMDEV_TESTING_LOCKED_HI_EMT_SHARED UINT32_C(0x08000000)
+/** High Locking Control: Use read/write critical section instead of regular. */
+#define VMMDEV_TESTING_LOCKED_HI_TYPE_RW UINT32_C(0x10000000)
+/** High Locking Control: EMT takes lock with rcBusy set to VINF_SUCCESS. */
+#define VMMDEV_TESTING_LOCKED_HI_BUSY_SUCCESS UINT32_C(0x20000000)
+/** High Locking Control: Thread pokes EMTs before releasing lock. */
+#define VMMDEV_TESTING_LOCKED_HI_POKE UINT32_C(0x40000000)
+/** High Locking Control: Thread enabled. */
+#define VMMDEV_TESTING_LOCKED_HI_ENABLED UINT32_C(0x80000000)
+/** @} */
+
+/** @name VMMDEV_TESTING_CFG_XXX - Configuration values that can be queried.
+ * @{ */
+/** Generic 32-bit value \#0 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD0 UINT16_C(0x0000)
+/** Generic 32-bit value \#1 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD1 UINT16_C(0x0001)
+/** Generic 32-bit value \#2 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD2 UINT16_C(0x0002)
+/** Generic 32-bit value \#3 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD3 UINT16_C(0x0003)
+/** Generic 32-bit value \#4 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD4 UINT16_C(0x0004)
+/** Generic 32-bit value \#5 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD5 UINT16_C(0x0005)
+/** Generic 32-bit value \#6 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD6 UINT16_C(0x0006)
+/** Generic 32-bit value \#7 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD7 UINT16_C(0x0007)
+/** Generic 32-bit value \#8 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD8 UINT16_C(0x0008)
+/** Generic 32-bit value \#9 - testcase defined meaning. */
+#define VMMDEV_TESTING_CFG_DWORD9 UINT16_C(0x0009)
+
+/** Boolean (8-bit): Running in NEM on Linux? */
+#define VMMDEV_TESTING_CFG_IS_NEM_LINUX UINT16_C(0x0100)
+/** Boolean (8-bit): Running in NEM on Windows? */
+#define VMMDEV_TESTING_CFG_IS_NEM_WINDOWS UINT16_C(0x0101)
+/** Boolean (8-bit): Running in NEM on Darwin? */
+#define VMMDEV_TESTING_CFG_IS_NEM_DARWIN UINT16_C(0x0102)
+/** @} */
+
+/** @} */
+
+#endif /* !VBOX_INCLUDED_VMMDevTesting_h */
+