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vgpu_unlock/vgpu_unlock
Jonathan Johansson 1af65cd505 Fix devices spoofed as Tesla M10.
2021-04-19 18:35:42 +02:00

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#!/bin/python3
#
# vGPU unlock script for consumer GPUs.
#
# Copyright 2021 Jonathan Johansson
# This file is part of the "vgpu_unlock" project, and is distributed under the MIT License.
# See the LICENSE file for more details.
#
# Contributions from Krutav Shah and the vGPU Unlocking community included :)
#
import errno
import frida
import os
import queue
import subprocess
import sys
import time
script_source = r"""
var syslog_func = new NativeFunction(Module.getExportByName(null, "syslog"),
"void",
["int", "pointer", "...", "pointer"]);
var syslog = function(message) {
var format_ptr = Memory.allocUtf8String("%s");
var message_ptr = Memory.allocUtf8String(message);
syslog_func(5, format_ptr, message_ptr);
};
// Value of the "request" argument used by nvidia-vgpud and nvidia-vgpu-mgr
// when calling ioctl to read the PCI device ID and type (and possibly
// other things) from the GPU.
var REQ_QUERY_GPU = ptr("0xC020462A");
// When issuing ioctl with REQ_QUERY_GPU then the "argp" argument is a
// pointer to a structure something like this:
//
// struct arg {
// uint32_t unknown_1; // Initialized prior to call.
// uint32_t unknown_2; // Initialized prior to call.
// uint32_t op_type; // Operation type, see comment below.
// uint32_t padding_1; // Always set to 0 prior to call.
// void* result; // Pointer initialized prior to call.
// // Pointee initialized to 0 prior to call.
// // Pointee is written by ioctl call.
// uint32_t unknown_4; // Set to 0x10 for READ_PCI_ID and set to 4 for
// READ_DEV_TYPE prior to call.
// uint32_t status; // Written by ioctl call. See comment below.
// }
// These are the observed values for the op_type member.
var OP_READ_DEV_TYPE = 0x800289; // *result type is uint64_t.
var OP_READ_PCI_ID = 0x20801801; // *result type is uint16_t[4], the second
// element (index 1) is the device ID, the
// forth element (index 3) is the subsystem
// ID.
// nvidia-vgpu-mgr expects this value for a vGPU capable GPU.
var DEV_TYPE_VGPU_CAPABLE = uint64(3);
// When ioctl returns success (retval >= 0) but sets the status value of
// the arg structure to 3 then nvidia-vgpud will sleep for a bit (first
// 0.1s then 1s then 10s) then issue the same ioctl call again until the
// status differs from 3. It will attempt this for up to 24h before giving
// up.
var STATUS_OK = 0;
var STATUS_TRY_AGAIN = 3;
Interceptor.attach(Module.getExportByName(null, "ioctl"), {
onEnter(args) {
this.request = args[1];
this.argp = args[2];
},
onLeave(retVal) {
if(!this.request.equals(REQ_QUERY_GPU)) {
// Not a call we care about.
return;
}
if(retVal.toInt32() < 0) {
// Call failed.
return;
}
// Lookup status value according to struct above.
var status = this.argp.add(0x1C).readU32();
if(status == STATUS_TRY_AGAIN) {
// Driver will try again.
return;
}
var op_type = this.argp.add(8).readU32();
if(op_type == OP_READ_PCI_ID) {
// Lookup address of the device and subsystem IDs.
var devid_ptr = this.argp.add(0x10).readPointer().add(2);
var subsysid_ptr = this.argp.add(0x10).readPointer().add(6);
// Now we replace the device ID with a spoofed value that needs to
// be determined such that the spoofed value represents a GPU with
// vGPU support that uses the same GPU chip as our actual GPU.
var actual_devid = devid_ptr.readU16();
var spoofed_devid = actual_devid;
var actual_subsysid = subsysid_ptr.readU16();
var spoofed_subsysid = actual_subsysid;
// GM107
if(actual_devid == 0x1390 || // GTX 845M
actual_devid == 0x1391 || // GTX 850M
actual_devid == 0x1392 || // GTX 860M
actual_devid == 0x139a || // GTX 950M
actual_devid == 0x139b || // GTX 960M
actual_devid == 0x139c || // GTX 940M
actual_devid == 0x139d || // GTX 750 Ti Maxwell
actual_devid == 0x179c || // GTX 940MX
actual_devid == 0x1380 || // GTX 750 Ti Maxwell
actual_devid == 0x1381 || // GTX 750 Maxwell
actual_devid == 0x1382 || // GTX 745 Maxwell
actual_devid == 0x13b0 || // Quadro M2000 Mobile
actual_devid == 0x13b1 || // Quadro M1000 Mobile
actual_devid == 0x13b2 || // Quadro M600 Mobile
actual_devid == 0x13b3 || // Quadro K2200 Mobile
actual_devid == 0x13b4 || // Quadro M620 Mobile
actual_devid == 0x13b6 || // Quadro M1200 Mobile
actual_devid == 0x13b9 || // NVS 810
actual_devid == 0x13ba || // Quadro K2200
actual_devid == 0x13bb || // Quadro K620
actual_devid == 0x13bc) { // Quadro K1200
spoofed_devid = 0x13bd; // Tesla M10
spoofed_subsysid = 0x1160;
}
// GM204
if(actual_devid == 0x13c3 || // GTX 960 GM204 OEM Edition
actual_devid == 0x13d9 || // GTX 965M
actual_devid == 0x13d8 || // GTX 970M
actual_devid == 0x13c2 || // GTX 970
actual_devid == 0x13d7 || // GTX 980M
actual_devid == 0x13c0 || // GTX 980
actual_devid == 0x13c1 || // GM204 Unknown
actual_devid == 0x13f1 || // Quadro M4000
actual_devid == 0x13f0) { // Quadro M5000
spoofed_devid = 0x13f2; // Tesla M60
}
// GP102
if(actual_devid == 0x1b00 || // TITAN X (Pascal)
actual_devid == 0x1b02 || // TITAN Xp
actual_devid == 0x1b06 || // GTX 1080 Ti
actual_devid == 0x1b30) { // Quadro P6000
spoofed_devid = 0x1b38; // Tesla P40
}
// GP108 (Merged with Tesla P4, will move to M10 in future due to 2GB VRAM)
if(actual_devid == 0x1d01 || // GT 1030
actual_devid == 0x1d10 || // MX150 Mobile
actual_devid == 0x1d11 || // MX230 Mobile
actual_devid == 0x1d12 || // MX150 Mobile
actual_devid == 0x1d13 || // MX250 Mobile
actual_devid == 0x1d16 || // MX330 Mobile
// GP107 (Merged with Tesla P4, may move to M10 in future due to low VRAM)
actual_devid == 0x1cb1 || // Quadro P1000
actual_devid == 0x1cb3 || // Quadro P400
actual_devid == 0x1c81 || // GTX 1050 2GB
actual_devid == 0x1c82 || // GTX 1050 Ti
actual_devid == 0x1c83 || // GTX 1050 3GB
actual_devid == 0x1c8c || // GTX 1050 Ti Mobile
actual_devid == 0x1c8d || // GTX 1050 Mobile
actual_devid == 0x1c8f || // GTX 1050 Ti Max-Q
actual_devid == 0x1c90 || // MX150 Mobile
actual_devid == 0x1c92 || // GTX 1050 Mobile
actual_devid == 0x1c94 || // MX350 Mobile
actual_devid == 0x1c96 || // MX350 Mobile
// GP106 (Merged with Tesla P4)
actual_devid == 0x1c03 || // GTX 1060 6GB
actual_devid == 0x1c04 || // GTX 1060 5GB
actual_devid == 0x1c02 || // GTX 1060 3GB
actual_devid == 0x1c07 || // P106-100 6GB
actual_devid == 0x1c09 || // P106-90 3GB
actual_devid == 0x1c22 || // GTX 1050 Mobile
actual_devid == 0x1c23 || // GTX 1060 Mobile Rev. 2
actual_devid == 0x1c20 || // GTX 1060 Mobile
actual_devid == 0x1c21 || // GTX 1050 Ti Mobile
actual_devid == 0x1c2d || // GP106M Generic
actual_devid == 0x1c60 || // GTX 1060 Mobile 6GB
actual_devid == 0x1c61 || // GTX 1050 Ti Mobile
actual_devid == 0x1c62 || // GTX 1050 Mobile
actual_devid == 0x1c70 || // GP106GL Generic
actual_devid == 0x1c30 || // Quadro P2000
actual_devid == 0x1c31 || // Quadro P2200
// GP104
actual_devid == 0x1b80 || // GTX 1080
actual_devid == 0x1b81 || // GTX 1070
actual_devid == 0x1b82 || // GTX 1070 Ti
actual_devid == 0x1b83 || // GTX 1060 6GB GP104 Refresh
actual_devid == 0x1b84 || // GTX 1060 3GB GP104 Refresh
actual_devid == 0x1b87 || // P104-100 Mining Card
actual_devid == 0x1ba0 || // GTX 1080 Mobile
actual_devid == 0x1ba1 || // GTX 1070 Mobile
actual_devid == 0x1bb0) { // Quadro P5000 (This will be moved to Tesla P6 in the future)
spoofed_devid = 0x1bb3; // Tesla P4
}
// GV100 (For the one person who owns a Titan Volta)
if(actual_devid == 0x1d81 || // TITAN V
actual_devid == 0x1dba) { // Quadro GV100 32GB
spoofed_devid = 0x1db4; // Tesla V100
}
// TU102
if(actual_devid == 0x1e02 || // TITAN RTX
actual_devid == 0x1e04 || // RTX 2080 Ti
actual_devid == 0x1e07) { // RTX 2080 Ti Rev. A
spoofed_devid = 0x1e30; // Quadro RTX 6000
spoofed_subsysid = 0x12ba;
}
// TU117 (Merged with Tesla T4)
if(actual_devid == 0x1ff9 || // Quadro T1000 Mobile
actual_devid == 0x1f99 || // TU1117 Mobile Unknown
actual_devid == 0x1fae || // TU1117GL Unknown
actual_devid == 0x1fb8 || // Quadro T2000 Mobile Max-Q
actual_devid == 0x1fb9 || // Quadro T1000 Mobile
actual_devid == 0x1fbf || // TU1117GL Unknown
actual_devid == 0x1f97 || // GeForce MX450
actual_devid == 0x1f98 || // GeForce MX450
actual_devid == 0x1f9c || // GeForce MX450
actual_devid == 0x1fbb || // Quadro T500 Mobile
actual_devid == 0x1fd9 || // GeForce GTX 1650 Mobile Refresh
actual_devid == 0x1f81 || // TU117 Unknown
actual_devid == 0x1f82 || // GeForce GTX 1650
actual_devid == 0x1f91 || // GTX 1650 Mobile Max-Q
actual_devid == 0x1f92 || // GTX 1650 Mobile
actual_devid == 0x1f94 || // GTX 1650 Mobile
actual_devid == 0x1f95 || // GTX 1650 Ti Mobile
actual_devid == 0x1f96 || // GTX 1650 Mobile Max-Q
// TU116 (Merged with Tesla T4)
actual_devid == 0x2182 || // GTX 1660 Ti
actual_devid == 0x2183 || // TU116 Unknown
actual_devid == 0x2184 || // GTX 1660
actual_devid == 0x2187 || // GTX 1650 SUPER
actual_devid == 0x2188 || // GTX 1650
actual_devid == 0x2191 || // GTX 1660 Ti Mobile
actual_devid == 0x2192 || // GTX 1650 Ti Mobile
actual_devid == 0x21ae || // TU116GL Unknown
actual_devid == 0x21bf || // TU116GL Unknown
actual_devid == 0x21c4 || // GTX 1660 Super
actual_devid == 0x21d1 || // GTX 1660 Ti Mobile
// TU106 (Merged with Tesla T4)
actual_devid == 0x1f02 || // RTX 2070 8GB
actual_devid == 0x1f04 || // TU106 Unknown
actual_devid == 0x1f06 || // RTX 2060 SUPER
actual_devid == 0x1f07 || // RTX 2070 Rev. A
actual_devid == 0x1f08 || // RTX 2060 6GB
actual_devid == 0x1f09 || // GTX 1660 Super
actual_devid == 0x1f0a || // GTX 1650
actual_devid == 0x1f10 || // RTX 2070 Mobile
actual_devid == 0x1f11 || // RTX 2060 Mobile
actual_devid == 0x1f12 || // RTX 2060 Mobile Max-Q
actual_devid == 0x1f14 || // RTX 2070 Mobile Max-Q
actual_devid == 0x1f15 || // RTX 2060 Mobile
actual_devid == 0x1f2e || // TU106M Mobile Unknown
actual_devid == 0x1f36 || // TU106GLM Mobile Unknown
actual_devid == 0x1f42 || // RTX 2060 SUPER
actual_devid == 0x1f47 || // RTX 2060 SUPER
actual_devid == 0x1f50 || // RTX 2070 Mobile
actual_devid == 0x1f51 || // RTX 2060 Mobile
// TU104
actual_devid == 0x1e81 || // RTX 2080 Super
actual_devid == 0x1e82 || // RTX 2080
actual_devid == 0x1e84 || // RTX 2070 Super
actual_devid == 0x1e87 || // RTX 2080 Rev. A
actual_devid == 0x1e89 || // RTX 2060
actual_devid == 0x1eb0 || // Quadro RTX 5000
actual_devid == 0x1eb1) { // Quadro RTX 4000
spoofed_devid = 0x1eb8; // Tesla T4
}
// GA102
if(actual_devid == 0x2204 || // RTX 3090
actual_devid == 0x2205 || // RTX 3080 Ti
actual_devid == 0x2206) { // RTX 3080
spoofed_devid = 0x2235; // RTX A40
}
devid_ptr.writeU16(spoofed_devid);
subsysid_ptr.writeU16(spoofed_subsysid);
}
if(op_type == OP_READ_DEV_TYPE) {
// Set device type to vGPU capable.
var dev_type_ptr = this.argp.add(0x10).readPointer();
dev_type_ptr.writeU64(DEV_TYPE_VGPU_CAPABLE);
}
if(status != STATUS_OK) {
// Things seems to work fine even if some operations that fail
// result in failed assertions. So here we change the status
// value for these cases to cleanup the logs for nvidia-vgpu-mgr.
if(op_type == 0xA0820104 ||
op_type == 0x90960103) {
this.argp.add(0x1C).writeU32(STATUS_OK);
} else {
syslog("op_type: 0x" + op_type.toString(16) + " failed.");
}
}
}
});
syslog("vgpu_unlock loaded.");
"""
device = frida.get_local_device()
child_processes = queue.Queue()
def instrument(pid):
"""Instrument and resume process.
:param pid: Process identifier
"""
session = device.attach(pid)
# We need to also instrument the children since nvidia-vgpud forks itself
# when initially launched.
session.enable_child_gating()
script = session.create_script(script_source)
script.load()
device.resume(pid)
def on_child_added(child):
"""Callback for when a new child process has been created.
:param child: The newly created child process.
"""
child_processes.put(child.pid)
instrument(child.pid)
def wait_exit(pid):
"""Wait for a process to terminate.
:param pid: Process ID of the target process.
"""
while 1:
time.sleep(.1)
try:
os.kill(pid, 0)
except OSError as e:
if e.errno == errno.ESRCH:
break
def main():
"""Entrypoint."""
# Behave at least a little bit like a forking service.
if sys.argv[1] != "-f":
subprocess.Popen([sys.argv[0], "-f"] + sys.argv[1:])
exit()
device.on("child-added", on_child_added)
pid = device.spawn(["/bin/bash", "-c", ' '.join(sys.argv[2:])])
instrument(pid)
# Wait for everything to terminate before exiting.
wait_exit(pid)
while not child_processes.empty():
wait_exit(child_processes.get_nowait())
if __name__ == "__main__":
main()
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