Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pci,pc: features, fixes

users can now control VM bit in smbios.
vhost-user-device is now user-createable.
intel_iommu now supports PRI
virtio-net now supports GSO over UDP tunnel
ghes now supports error injection
amd iommu now supports dma remapping for vfio
better error messages for virtio

small fixes all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (75 commits)
  virtio: improve virtqueue mapping error messages
  pci: Fix wrong parameter passing to pci_device_get_iommu_bus_devfn()
  intel_iommu: Simplify caching mode check with VFIO device
  intel_iommu: Enable Enhanced Set Root Table Pointer Support (ESRTPS)
  vdpa-dev: add get_vhost() callback for vhost-vdpa device
  amd_iommu: HATDis/HATS=11 support
  intel-iommu: Move dma_translation to x86-iommu
  amd_iommu: Refactor amdvi_page_walk() to use common code for page walk
  amd_iommu: Do not assume passthrough translation when DTE[TV]=0
  amd_iommu: Toggle address translation mode on devtab entry invalidation
  amd_iommu: Add dma-remap property to AMD vIOMMU device
  amd_iommu: Set all address spaces to use passthrough mode on reset
  amd_iommu: Toggle memory regions based on address translation mode
  amd_iommu: Invalidate address translations on INVALIDATE_IOMMU_ALL
  amd_iommu: Add replay callback
  amd_iommu: Unmap all address spaces under the AMD IOMMU on reset
  amd_iommu: Use iova_tree records to determine large page size on UNMAP
  amd_iommu: Sync shadow page tables on page invalidation
  amd_iommu: Add basic structure to support IOMMU notifier updates
  amd_iommu: Add a page walker to sync shadow page tables on invalidation
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 703 insertions, 0 deletions

diff --git a/scripts/qmp_helper.py b/scripts/qmp_helper.py
new file mode 100755
index 0000000000..c1e7e0fd80
--- /dev/null
+++ b/scripts/qmp_helper.py
@@ -0,0 +1,703 @@
+#!/usr/bin/env python3
+#
+# pylint: disable=C0103,E0213,E1135,E1136,E1137,R0902,R0903,R0912,R0913,R0917
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024-2025 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+
+"""
+Helper classes to be used by ghes_inject command classes.
+"""
+
+import json
+import sys
+
+from datetime import datetime
+from os import path as os_path
+
+try:
+    qemu_dir = os_path.abspath(os_path.dirname(os_path.dirname(__file__)))
+    sys.path.append(os_path.join(qemu_dir, 'python'))
+
+    from qemu.qmp.legacy import QEMUMonitorProtocol
+
+except ModuleNotFoundError as exc:
+    print(f"Module '{exc.name}' not found.")
+    print("Try export PYTHONPATH=top-qemu-dir/python or run from top-qemu-dir")
+    sys.exit(1)
+
+from base64 import b64encode
+
+class util:
+    """
+    Ancillary functions to deal with bitmaps, parse arguments,
+    generate GUID and encode data on a bytearray buffer.
+    """
+
+    #
+    # Helper routines to handle multiple choice arguments
+    #
+    def get_choice(name, value, choices, suffixes=None, bitmask=True):
+        """Produce a list from multiple choice argument"""
+
+        new_values = 0
+
+        if not value:
+            return new_values
+
+        for val in value.split(","):
+            val = val.lower()
+
+            if suffixes:
+                for suffix in suffixes:
+                    val = val.removesuffix(suffix)
+
+            if val not in choices.keys():
+                if suffixes:
+                    for suffix in suffixes:
+                        if val + suffix in choices.keys():
+                            val += suffix
+                            break
+
+            if val not in choices.keys():
+                sys.exit(f"Error on '{name}': choice '{val}' is invalid.")
+
+            val = choices[val]
+
+            if bitmask:
+                new_values |= val
+            else:
+                if new_values:
+                    sys.exit(f"Error on '{name}': only one value is accepted.")
+
+                new_values = val
+
+        return new_values
+
+    def get_array(name, values, max_val=None):
+        """Add numbered hashes from integer lists into an array"""
+
+        array = []
+
+        for value in values:
+            for val in value.split(","):
+                try:
+                    val = int(val, 0)
+                except ValueError:
+                    sys.exit(f"Error on '{name}': {val} is not an integer")
+
+                if val < 0:
+                    sys.exit(f"Error on '{name}': {val} is not unsigned")
+
+                if max_val and val > max_val:
+                    sys.exit(f"Error on '{name}': {val} is too little")
+
+                array.append(val)
+
+        return array
+
+    def get_mult_array(mult, name, values, allow_zero=False, max_val=None):
+        """Add numbered hashes from integer lists"""
+
+        if not allow_zero:
+            if not values:
+                return
+        else:
+            if values is None:
+                return
+
+            if not values:
+                i = 0
+                if i not in mult:
+                    mult[i] = {}
+
+                mult[i][name] = []
+                return
+
+        i = 0
+        for value in values:
+            for val in value.split(","):
+                try:
+                    val = int(val, 0)
+                except ValueError:
+                    sys.exit(f"Error on '{name}': {val} is not an integer")
+
+                if val < 0:
+                    sys.exit(f"Error on '{name}': {val} is not unsigned")
+
+                if max_val and val > max_val:
+                    sys.exit(f"Error on '{name}': {val} is too little")
+
+                if i not in mult:
+                    mult[i] = {}
+
+                if name not in mult[i]:
+                    mult[i][name] = []
+
+                mult[i][name].append(val)
+
+            i += 1
+
+
+    def get_mult_choices(mult, name, values, choices,
+                        suffixes=None, allow_zero=False):
+        """Add numbered hashes from multiple choice arguments"""
+
+        if not allow_zero:
+            if not values:
+                return
+        else:
+            if values is None:
+                return
+
+        i = 0
+        for val in values:
+            new_values = util.get_choice(name, val, choices, suffixes)
+
+            if i not in mult:
+                mult[i] = {}
+
+            mult[i][name] = new_values
+            i += 1
+
+
+    def get_mult_int(mult, name, values, allow_zero=False):
+        """Add numbered hashes from integer arguments"""
+        if not allow_zero:
+            if not values:
+                return
+        else:
+            if values is None:
+                return
+
+        i = 0
+        for val in values:
+            try:
+                val = int(val, 0)
+            except ValueError:
+                sys.exit(f"Error on '{name}': {val} is not an integer")
+
+            if val < 0:
+                sys.exit(f"Error on '{name}': {val} is not unsigned")
+
+            if i not in mult:
+                mult[i] = {}
+
+            mult[i][name] = val
+            i += 1
+
+
+    #
+    # Data encode helper functions
+    #
+    def bit(b):
+        """Simple macro to define a bit on a bitmask"""
+        return 1 << b
+
+
+    def data_add(data, value, num_bytes):
+        """Adds bytes from value inside a bitarray"""
+
+        data.extend(value.to_bytes(num_bytes, byteorder="little"))  # pylint: disable=E1101
+
+    def dump_bytearray(name, data):
+        """Does an hexdump of a byte array, grouping in bytes"""
+
+        print(f"{name} ({len(data)} bytes):")
+
+        for ln_start in range(0, len(data), 16):
+            ln_end = min(ln_start + 16, len(data))
+            print(f"      {ln_start:08x}  ", end="")
+            for i in range(ln_start, ln_end):
+                print(f"{data[i]:02x} ", end="")
+            for i in range(ln_end, ln_start + 16):
+                print("   ", end="")
+            print("  ", end="")
+            for i in range(ln_start, ln_end):
+                if data[i] >= 32 and data[i] < 127:
+                    print(chr(data[i]), end="")
+                else:
+                    print(".", end="")
+
+            print()
+        print()
+
+    def time(string):
+        """Handle BCD timestamps used on Generic Error Data Block"""
+
+        time = None
+
+        # Formats to be used when parsing time stamps
+        formats = [
+            "%Y-%m-%d %H:%M:%S",
+        ]
+
+        if string == "now":
+            time = datetime.now()
+
+        if time is None:
+            for fmt in formats:
+                try:
+                    time = datetime.strptime(string, fmt)
+                    break
+                except ValueError:
+                    pass
+
+            if time is None:
+                raise ValueError("Invalid time format")
+
+        return time
+
+class guid:
+    """
+    Simple class to handle GUID fields.
+    """
+
+    def __init__(self, time_low, time_mid, time_high, nodes):
+        """Initialize a GUID value"""
+
+        assert len(nodes) == 8
+
+        self.time_low = time_low
+        self.time_mid = time_mid
+        self.time_high = time_high
+        self.nodes = nodes
+
+    @classmethod
+    def UUID(cls, guid_str):
+        """Initialize a GUID using a string on its standard format"""
+
+        if len(guid_str) != 36:
+            print("Size not 36")
+            raise ValueError('Invalid GUID size')
+
+        # It is easier to parse without separators. So, drop them
+        guid_str = guid_str.replace('-', '')
+
+        if len(guid_str) != 32:
+            print("Size not 32", guid_str, len(guid_str))
+            raise ValueError('Invalid GUID hex size')
+
+        time_low = 0
+        time_mid = 0
+        time_high = 0
+        nodes = []
+
+        for i in reversed(range(16, 32, 2)):
+            h = guid_str[i:i + 2]
+            value = int(h, 16)
+            nodes.insert(0, value)
+
+        time_high = int(guid_str[12:16], 16)
+        time_mid = int(guid_str[8:12], 16)
+        time_low = int(guid_str[0:8], 16)
+
+        return cls(time_low, time_mid, time_high, nodes)
+
+    def __str__(self):
+        """Output a GUID value on its default string representation"""
+
+        clock = self.nodes[0] << 8 | self.nodes[1]
+
+        node = 0
+        for i in range(2, len(self.nodes)):
+            node = node << 8 | self.nodes[i]
+
+        s = f"{self.time_low:08x}-{self.time_mid:04x}-"
+        s += f"{self.time_high:04x}-{clock:04x}-{node:012x}"
+        return s
+
+    def to_bytes(self):
+        """Output a GUID value in bytes"""
+
+        data = bytearray()
+
+        util.data_add(data, self.time_low, 4)
+        util.data_add(data, self.time_mid, 2)
+        util.data_add(data, self.time_high, 2)
+        data.extend(bytearray(self.nodes))
+
+        return data
+
+class qmp:
+    """
+    Opens a connection and send/receive QMP commands.
+    """
+
+    def send_cmd(self, command, args=None, may_open=False, return_error=True):
+        """Send a command to QMP, optinally opening a connection"""
+
+        if may_open:
+            self._connect()
+        elif not self.connected:
+            return False
+
+        msg = { 'execute': command }
+        if args:
+            msg['arguments'] = args
+
+        try:
+            obj = self.qmp_monitor.cmd_obj(msg)
+        # Can we use some other exception class here?
+        except Exception as e:                         # pylint: disable=W0718
+            print(f"Command: {command}")
+            print(f"Failed to inject error: {e}.")
+            return None
+
+        if "return" in obj:
+            if isinstance(obj.get("return"), dict):
+                if obj["return"]:
+                    return obj["return"]
+                return "OK"
+
+            return obj["return"]
+
+        if isinstance(obj.get("error"), dict):
+            error = obj["error"]
+            if return_error:
+                print(f"Command: {msg}")
+                print(f'{error["class"]}: {error["desc"]}')
+        else:
+            print(json.dumps(obj))
+
+        return None
+
+    def _close(self):
+        """Shutdown and close the socket, if opened"""
+        if not self.connected:
+            return
+
+        self.qmp_monitor.close()
+        self.connected = False
+
+    def _connect(self):
+        """Connect to a QMP TCP/IP port, if not connected yet"""
+
+        if self.connected:
+            return True
+
+        try:
+            self.qmp_monitor.connect(negotiate=True)
+        except ConnectionError:
+            sys.exit(f"Can't connect to QMP host {self.host}:{self.port}")
+
+        self.connected = True
+
+        return True
+
+    BLOCK_STATUS_BITS = {
+        "uncorrectable":            util.bit(0),
+        "correctable":              util.bit(1),
+        "multi-uncorrectable":      util.bit(2),
+        "multi-correctable":        util.bit(3),
+    }
+
+    ERROR_SEVERITY = {
+        "recoverable":  0,
+        "fatal":        1,
+        "corrected":    2,
+        "none":         3,
+    }
+
+    VALIDATION_BITS = {
+        "fru-id":       util.bit(0),
+        "fru-text":     util.bit(1),
+        "timestamp":    util.bit(2),
+    }
+
+    GEDB_FLAGS_BITS = {
+        "recovered":    util.bit(0),
+        "prev-error":   util.bit(1),
+        "simulated":    util.bit(2),
+    }
+
+    GENERIC_DATA_SIZE = 72
+
+    def argparse(parser):
+        """Prepare a parser group to query generic error data"""
+
+        block_status_bits = ",".join(qmp.BLOCK_STATUS_BITS.keys())
+        error_severity_enum = ",".join(qmp.ERROR_SEVERITY.keys())
+        validation_bits = ",".join(qmp.VALIDATION_BITS.keys())
+        gedb_flags_bits = ",".join(qmp.GEDB_FLAGS_BITS.keys())
+
+        g_gen = parser.add_argument_group("Generic Error Data")  # pylint: disable=E1101
+        g_gen.add_argument("--block-status",
+                           help=f"block status bits: {block_status_bits}")
+        g_gen.add_argument("--raw-data", nargs="+",
+                        help="Raw data inside the Error Status Block")
+        g_gen.add_argument("--error-severity", "--severity",
+                           help=f"error severity: {error_severity_enum}")
+        g_gen.add_argument("--gen-err-valid-bits",
+                           "--generic-error-validation-bits",
+                           help=f"validation bits: {validation_bits}")
+        g_gen.add_argument("--fru-id", type=guid.UUID,
+                           help="GUID representing a physical device")
+        g_gen.add_argument("--fru-text",
+                           help="ASCII string identifying the FRU hardware")
+        g_gen.add_argument("--timestamp", type=util.time,
+                           help="Time when the error info was collected")
+        g_gen.add_argument("--precise", "--precise-timestamp",
+                           action='store_true',
+                           help="Marks the timestamp as precise if --timestamp is used")
+        g_gen.add_argument("--gedb-flags",
+                           help=f"General Error Data Block flags: {gedb_flags_bits}")
+
+    def set_args(self, args):
+        """Set the arguments optionally defined via self.argparse()"""
+
+        if args.block_status:
+            self.block_status = util.get_choice(name="block-status",
+                                                value=args.block_status,
+                                                choices=self.BLOCK_STATUS_BITS,
+                                                bitmask=False)
+        if args.raw_data:
+            self.raw_data = util.get_array("raw-data", args.raw_data,
+                                           max_val=255)
+            print(self.raw_data)
+
+        if args.error_severity:
+            self.error_severity = util.get_choice(name="error-severity",
+                                                  value=args.error_severity,
+                                                  choices=self.ERROR_SEVERITY,
+                                                  bitmask=False)
+
+        if args.fru_id:
+            self.fru_id = args.fru_id.to_bytes()
+            if not args.gen_err_valid_bits:
+                self.validation_bits |= self.VALIDATION_BITS["fru-id"]
+
+        if args.fru_text:
+            text = bytearray(args.fru_text.encode('ascii'))
+            if len(text) > 20:
+                sys.exit("FRU text is too big to fit")
+
+            self.fru_text = text
+            if not args.gen_err_valid_bits:
+                self.validation_bits |= self.VALIDATION_BITS["fru-text"]
+
+        if args.timestamp:
+            time = args.timestamp
+            century = int(time.year / 100)
+
+            bcd = bytearray()
+            util.data_add(bcd, (time.second // 10) << 4 | (time.second % 10), 1)
+            util.data_add(bcd, (time.minute // 10) << 4 | (time.minute % 10), 1)
+            util.data_add(bcd, (time.hour // 10) << 4 | (time.hour % 10), 1)
+
+            if args.precise:
+                util.data_add(bcd, 1, 1)
+            else:
+                util.data_add(bcd, 0, 1)
+
+            util.data_add(bcd, (time.day // 10) << 4 | (time.day % 10), 1)
+            util.data_add(bcd, (time.month // 10) << 4 | (time.month % 10), 1)
+            util.data_add(bcd,
+                          ((time.year % 100) // 10) << 4 | (time.year % 10), 1)
+            util.data_add(bcd, ((century % 100) // 10) << 4 | (century % 10), 1)
+
+            self.timestamp = bcd
+            if not args.gen_err_valid_bits:
+                self.validation_bits |= self.VALIDATION_BITS["timestamp"]
+
+        if args.gen_err_valid_bits:
+            self.validation_bits = util.get_choice(name="validation",
+                                                   value=args.gen_err_valid_bits,
+                                                   choices=self.VALIDATION_BITS)
+
+    def __init__(self, host, port, debug=False):
+        """Initialize variables used by the QMP send logic"""
+
+        self.connected = False
+        self.host = host
+        self.port = port
+        self.debug = debug
+
+        # ACPI 6.1: 18.3.2.7.1 Generic Error Data: Generic Error Status Block
+        self.block_status = self.BLOCK_STATUS_BITS["uncorrectable"]
+        self.raw_data = []
+        self.error_severity = self.ERROR_SEVERITY["recoverable"]
+
+        # ACPI 6.1: 18.3.2.7.1 Generic Error Data: Generic Error Data Entry
+        self.validation_bits = 0
+        self.flags = 0
+        self.fru_id = bytearray(16)
+        self.fru_text = bytearray(20)
+        self.timestamp = bytearray(8)
+
+        self.qmp_monitor = QEMUMonitorProtocol(address=(self.host, self.port))
+
+    #
+    # Socket QMP send command
+    #
+    def send_cper_raw(self, cper_data):
+        """Send a raw CPER data to QEMU though QMP TCP socket"""
+
+        data = b64encode(bytes(cper_data)).decode('ascii')
+
+        cmd_arg = {
+            'cper': data
+        }
+
+        self._connect()
+
+        if self.send_cmd("inject-ghes-v2-error", cmd_arg):
+            print("Error injected.")
+
+    def send_cper(self, notif_type, payload):
+        """Send commands to QEMU though QMP TCP socket"""
+
+        # Fill CPER record header
+
+        # NOTE: bits 4 to 13 of block status contain the number of
+        # data entries in the data section. This is currently unsupported.
+
+        cper_length = len(payload)
+        data_length = cper_length + len(self.raw_data) + self.GENERIC_DATA_SIZE
+
+        #  Generic Error Data Entry
+        gede = bytearray()
+
+        gede.extend(notif_type.to_bytes())
+        util.data_add(gede, self.error_severity, 4)
+        util.data_add(gede, 0x300, 2)
+        util.data_add(gede, self.validation_bits, 1)
+        util.data_add(gede, self.flags, 1)
+        util.data_add(gede, cper_length, 4)
+        gede.extend(self.fru_id)
+        gede.extend(self.fru_text)
+        gede.extend(self.timestamp)
+
+        # Generic Error Status Block
+        gebs = bytearray()
+
+        if self.raw_data:
+            raw_data_offset = len(gebs)
+        else:
+            raw_data_offset = 0
+
+        util.data_add(gebs, self.block_status, 4)
+        util.data_add(gebs, raw_data_offset, 4)
+        util.data_add(gebs, len(self.raw_data), 4)
+        util.data_add(gebs, data_length, 4)
+        util.data_add(gebs, self.error_severity, 4)
+
+        cper_data = bytearray()
+        cper_data.extend(gebs)
+        cper_data.extend(gede)
+        cper_data.extend(bytearray(self.raw_data))
+        cper_data.extend(bytearray(payload))
+
+        if self.debug:
+            print(f"GUID: {notif_type}")
+
+            util.dump_bytearray("Generic Error Status Block", gebs)
+            util.dump_bytearray("Generic Error Data Entry", gede)
+
+            if self.raw_data:
+                util.dump_bytearray("Raw data", bytearray(self.raw_data))
+
+            util.dump_bytearray("Payload", payload)
+
+        self.send_cper_raw(cper_data)
+
+
+    def search_qom(self, path, prop, regex):
+        """
+        Return a list of devices that match path array like:
+
+            /machine/unattached/device
+            /machine/peripheral-anon/device
+            ...
+        """
+
+        found = []
+
+        i = 0
+        while 1:
+            dev = f"{path}[{i}]"
+            args = {
+                'path': dev,
+                'property': prop
+            }
+            ret = self.send_cmd("qom-get", args, may_open=True,
+                                return_error=False)
+            if not ret:
+                break
+
+            if isinstance(ret, str):
+                if regex.search(ret):
+                    found.append(dev)
+
+            i += 1
+            if i > 10000:
+                print("Too many objects returned by qom-get!")
+                break
+
+        return found
+
+class cper_guid:
+    """
+    Contains CPER GUID, as per:
+    https://uefi.org/specs/UEFI/2.10/Apx_N_Common_Platform_Error_Record.html
+    """
+
+    CPER_PROC_GENERIC =  guid(0x9876CCAD, 0x47B4, 0x4bdb,
+                              [0xB6, 0x5E, 0x16, 0xF1,
+                               0x93, 0xC4, 0xF3, 0xDB])
+
+    CPER_PROC_X86 = guid(0xDC3EA0B0, 0xA144, 0x4797,
+                         [0xB9, 0x5B, 0x53, 0xFA,
+                          0x24, 0x2B, 0x6E, 0x1D])
+
+    CPER_PROC_ITANIUM = guid(0xe429faf1, 0x3cb7, 0x11d4,
+                             [0xbc, 0xa7, 0x00, 0x80,
+                              0xc7, 0x3c, 0x88, 0x81])
+
+    CPER_PROC_ARM = guid(0xE19E3D16, 0xBC11, 0x11E4,
+                         [0x9C, 0xAA, 0xC2, 0x05,
+                          0x1D, 0x5D, 0x46, 0xB0])
+
+    CPER_PLATFORM_MEM = guid(0xA5BC1114, 0x6F64, 0x4EDE,
+                             [0xB8, 0x63, 0x3E, 0x83,
+                              0xED, 0x7C, 0x83, 0xB1])
+
+    CPER_PLATFORM_MEM2 = guid(0x61EC04FC, 0x48E6, 0xD813,
+                              [0x25, 0xC9, 0x8D, 0xAA,
+                               0x44, 0x75, 0x0B, 0x12])
+
+    CPER_PCIE = guid(0xD995E954, 0xBBC1, 0x430F,
+                     [0xAD, 0x91, 0xB4, 0x4D,
+                      0xCB, 0x3C, 0x6F, 0x35])
+
+    CPER_PCI_BUS = guid(0xC5753963, 0x3B84, 0x4095,
+                        [0xBF, 0x78, 0xED, 0xDA,
+                         0xD3, 0xF9, 0xC9, 0xDD])
+
+    CPER_PCI_DEV = guid(0xEB5E4685, 0xCA66, 0x4769,
+                        [0xB6, 0xA2, 0x26, 0x06,
+                         0x8B, 0x00, 0x13, 0x26])
+
+    CPER_FW_ERROR = guid(0x81212A96, 0x09ED, 0x4996,
+                         [0x94, 0x71, 0x8D, 0x72,
+                          0x9C, 0x8E, 0x69, 0xED])
+
+    CPER_DMA_GENERIC = guid(0x5B51FEF7, 0xC79D, 0x4434,
+                            [0x8F, 0x1B, 0xAA, 0x62,
+                             0xDE, 0x3E, 0x2C, 0x64])
+
+    CPER_DMA_VT = guid(0x71761D37, 0x32B2, 0x45cd,
+                       [0xA7, 0xD0, 0xB0, 0xFE,
+                        0xDD, 0x93, 0xE8, 0xCF])
+
+    CPER_DMA_IOMMU = guid(0x036F84E1, 0x7F37, 0x428c,
+                         [0xA7, 0x9E, 0x57, 0x5F,
+                          0xDF, 0xAA, 0x84, 0xEC])
+
+    CPER_CCIX_PER = guid(0x91335EF6, 0xEBFB, 0x4478,
+                         [0xA6, 0xA6, 0x88, 0xB7,
+                          0x28, 0xCF, 0x75, 0xD7])
+
+    CPER_CXL_PROT_ERR = guid(0x80B9EFB4, 0x52B5, 0x4DE3,
+                             [0xA7, 0x77, 0x68, 0x78,
+                              0x4B, 0x77, 0x10, 0x48])