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From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
To: dev@dpdk.org
Cc: "Dmitry Malloy (MESHCHANINOV)" <dmitrym@microsoft.com>,
Narcisa Ana Maria Vasile <Narcisa.Vasile@microsoft.com>,
Fady Bader <fady@mellanox.com>, Tal Shnaiderman <talshn@mellanox.com>,
Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Date: Fri, 10 Apr 2020 19:43:33 +0300
Message-Id: <20200410164342.1194634-2-dmitry.kozliuk@gmail.com>
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<20200410164342.1194634-1-dmitry.kozliuk@gmail.com>
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Subject: [dpdk-dev] [PATCH v2 1/1] virt2phys: virtual to physical address
translator for Windows
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This driver supports Windows EAL memory management by translating
current process virtual addresses to physical addresses (IOVA).
Standalone virt2phys allows using DPDK without PMD and provides a
reference implementation.
Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
---
Note: this patch is for dpdk-kmods tree.
windows/README.rst | 92 ++++++++
windows/virt2phys/virt2phys.c | 129 +++++++++++
windows/virt2phys/virt2phys.h | 34 +++
windows/virt2phys/virt2phys.inf | 64 ++++++
windows/virt2phys/virt2phys.sln | 27 +++
windows/virt2phys/virt2phys.vcxproj | 228 ++++++++++++++++++++
windows/virt2phys/virt2phys.vcxproj.filters | 36 ++++
7 files changed, 610 insertions(+)
create mode 100644 windows/README.rst
create mode 100755 windows/virt2phys/virt2phys.c
create mode 100755 windows/virt2phys/virt2phys.h
create mode 100755 windows/virt2phys/virt2phys.inf
create mode 100755 windows/virt2phys/virt2phys.sln
create mode 100755 windows/virt2phys/virt2phys.vcxproj
create mode 100755 windows/virt2phys/virt2phys.vcxproj.filters
diff --git a/windows/README.rst b/windows/README.rst
new file mode 100644
index 0000000..e30d4dc
--- /dev/null
+++ b/windows/README.rst
@@ -0,0 +1,92 @@
+Developing Windows Drivers
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D
+
+Prerequisites
+-------------
+
+Building Windows Drivers is only possible on Windows.
+
+1. Visual Studio 2019 Community or Professional Edition
+2. Windows Driver Kit (WDK) for Windows 10, version 1903
+
+Follow the official instructions to obtain all of the above:
+https://docs.microsoft.com/en-us/windows-hardware/drivers/download-the-wdk
+
+
+Build the Drivers
+-----------------
+
+Build from Visual Studio
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Open a solution (``*.sln``) with Visual Studio and build it (Ctrl+Shift+B).
+
+
+Build from Command-Line
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Run *Developer Command Prompt for VS 2019* from the Start menu.
+
+Navigate to the solution directory (with ``*.sln``), then run:
+
+.. code-block:: console
+
+ msbuild
+
+To build a particular combination of configuration and platform:
+
+.. code-block:: console
+
+ msbuild -p:Configuration=3DDebug;Platform=3Dx64
+
+
+Install the Drivers
+-------------------
+
+Disable Driver Signature Enforcement
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default Windows prohibits installing and loading drivers without `digit=
al
+signature`_ obtained from Microsoft. For development signature enforcement=
may
+be disabled as follows.
+
+In Elevated Command Prompt (from this point, sufficient privileges are
+assumed):
+
+.. code-block:: console
+
+ bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS
+ bcdedit -set TESTSIGNING ON
+ shutdown -r -t 0
+
+Upon reboot, an overlay message should appear on the desktop informing
+that Windows is in test mode, which means it allows loading unsigned drive=
rs.
+
+.. _digital signature: https://docs.microsoft.com/en-us/windows-hardware/d=
rivers/install/driver-signing
+
+
+Install, List, and Remove Drivers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Driver package is by default located in a subdirectory of its source tree,
+e.g. ``x64\Debug\virt2phys\virt2phys`` (note two levels of ``virt2phys``).
+
+To install the driver and bind associated devices to it:
+
+.. code-block:: console
+
+ pnputil /add-driver x64\Debug\virt2phys\virt2phys\virt2phys.inf /insta=
ll
+
+A graphical confirmation to load an unsigned driver will still appear.
+
+To list installed drivers:
+
+.. code-block:: console
+
+ pnputil /enum-drivers
+
+To remove the driver package and to uninstall its devices:
+
+.. code-block:: console
+
+ pnputil /delete-driver oem2.inf /uninstall
diff --git a/windows/virt2phys/virt2phys.c b/windows/virt2phys/virt2phys.c
new file mode 100755
index 0000000..e157e9c
--- /dev/null
+++ b/windows/virt2phys/virt2phys.c
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Dmitry Kozlyuk
+ */
+
+#include <ntddk.h>
+#include <wdf.h>
+#include <wdmsec.h>
+#include <initguid.h>
+
+#include "virt2phys.h"
+
+DRIVER_INITIALIZE DriverEntry;
+EVT_WDF_DRIVER_DEVICE_ADD virt2phys_driver_EvtDeviceAdd;
+EVT_WDF_IO_IN_CALLER_CONTEXT virt2phys_device_EvtIoInCallerContext;
+
+NTSTATUS
+DriverEntry(
+ IN PDRIVER_OBJECT driver_object, IN PUNICODE_STRING registry_path)
+{
+ WDF_DRIVER_CONFIG config;
+ WDF_OBJECT_ATTRIBUTES attributes;
+ NTSTATUS status;
+
+ PAGED_CODE();
+
+ WDF_DRIVER_CONFIG_INIT(&config, virt2phys_driver_EvtDeviceAdd);
+ WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
+ status =3D WdfDriverCreate(
+ driver_object, registry_path,
+ &attributes, &config, WDF_NO_HANDLE);
+ if (!NT_SUCCESS(status)) {
+ KdPrint(("WdfDriverCreate() failed, status=3D%08x\n", status));
+ }
+
+ return status;
+}
+
+_Use_decl_annotations_
+NTSTATUS
+virt2phys_driver_EvtDeviceAdd(
+ WDFDRIVER driver, PWDFDEVICE_INIT init)
+{
+ WDF_OBJECT_ATTRIBUTES attributes;
+ WDFDEVICE device;
+ NTSTATUS status;
+
+ UNREFERENCED_PARAMETER(driver);
+
+ PAGED_CODE();
+
+ WdfDeviceInitSetIoType(
+ init, WdfDeviceIoNeither);
+ WdfDeviceInitSetIoInCallerContextCallback(
+ init, virt2phys_device_EvtIoInCallerContext);
+
+ WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
+
+ status =3D WdfDeviceCreate(&init, &attributes, &device);
+ if (!NT_SUCCESS(status)) {
+ KdPrint(("WdfDeviceCreate() failed, status=3D%08x\n", status));
+ return status;
+ }
+
+ status =3D WdfDeviceCreateDeviceInterface(
+ device, &GUID_DEVINTERFACE_VIRT2PHYS, NULL);
+ if (!NT_SUCCESS(status)) {
+ KdPrint(("WdfDeviceCreateDeviceInterface() failed, "
+ "status=3D%08x\n", status));
+ return status;
+ }
+
+ return STATUS_SUCCESS;
+}
+
+_Use_decl_annotations_
+VOID
+virt2phys_device_EvtIoInCallerContext(
+ IN WDFDEVICE device, IN WDFREQUEST request)
+{
+ WDF_REQUEST_PARAMETERS params;
+ ULONG code;
+ PVOID *virt;
+ PHYSICAL_ADDRESS *phys;
+ size_t size;
+ NTSTATUS status;
+
+ UNREFERENCED_PARAMETER(device);
+
+ PAGED_CODE();
+
+ WDF_REQUEST_PARAMETERS_INIT(¶ms);
+ WdfRequestGetParameters(request, ¶ms);
+
+ if (params.Type !=3D WdfRequestTypeDeviceControl) {
+ KdPrint(("bogus request type=3D%u\n", params.Type));
+ WdfRequestComplete(request, STATUS_NOT_SUPPORTED);
+ return;
+ }
+
+ code =3D params.Parameters.DeviceIoControl.IoControlCode;
+ if (code !=3D IOCTL_VIRT2PHYS_TRANSLATE) {
+ KdPrint(("bogus IO control code=3D%lu\n", code));
+ WdfRequestComplete(request, STATUS_NOT_SUPPORTED);
+ return;
+ }
+
+ status =3D WdfRequestRetrieveInputBuffer(
+ request, sizeof(*virt), (PVOID *)&virt, &size);
+ if (!NT_SUCCESS(status)) {
+ KdPrint(("WdfRequestRetrieveInputBuffer() failed, "
+ "status=3D%08x\n", status));
+ WdfRequestComplete(request, status);
+ return;
+ }
+
+ status =3D WdfRequestRetrieveOutputBuffer(
+ request, sizeof(*phys), (PVOID *)&phys, &size);
+ if (!NT_SUCCESS(status)) {
+ KdPrint(("WdfRequestRetrieveOutputBuffer() failed, "
+ "status=3D%08x\n", status));
+ WdfRequestComplete(request, status);
+ return;
+ }
+
+ *phys =3D MmGetPhysicalAddress(*virt);
+
+ WdfRequestCompleteWithInformation(
+ request, STATUS_SUCCESS, sizeof(*phys));
+}
diff --git a/windows/virt2phys/virt2phys.h b/windows/virt2phys/virt2phys.h
new file mode 100755
index 0000000..4bb2b4a
--- /dev/null
+++ b/windows/virt2phys/virt2phys.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2020 Dmitry Kozlyuk
+ */
+
+/**
+ * @file virt2phys driver interface
+ */
+
+/**
+ * Driver device interface GUID {539c2135-793a-4926-afec-d3a1b61bbc8a}.
+ */
+DEFINE_GUID(GUID_DEVINTERFACE_VIRT2PHYS,
+ 0x539c2135, 0x793a, 0x4926,
+ 0xaf, 0xec, 0xd3, 0xa1, 0xb6, 0x1b, 0xbc, 0x8a);
+
+/**
+ * Driver device type for IO control codes.
+ */
+#define VIRT2PHYS_DEVTYPE 0x8000
+
+/**
+ * Translate a valid non-paged virtual address to a physical address.
+ *
+ * Note: A physical address zero (0) is reported if input address
+ * is paged out or not mapped. However, if input is a valid mapping
+ * of I/O port 0x0000, output is also zero. There is no way
+ * to distinguish between these cases by return value only.
+ *
+ * Input: a non-paged virtual address (PVOID).
+ *
+ * Output: the corresponding physical address (LARGE_INTEGER).
+ */
+#define IOCTL_VIRT2PHYS_TRANSLATE CTL_CODE( \
+ VIRT2PHYS_DEVTYPE, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS)
diff --git a/windows/virt2phys/virt2phys.inf b/windows/virt2phys/virt2phys.=
inf
new file mode 100755
index 0000000..e35765e
--- /dev/null
+++ b/windows/virt2phys/virt2phys.inf
@@ -0,0 +1,64 @@
+; SPDX-License-Identifier: BSD-3-Clause
+; Copyright (c) 2020 Dmitry Kozlyuk
+
+[Version]
+Signature =3D "$WINDOWS NT$"
+Class =3D %ClassName%
+ClassGuid =3D {78A1C341-4539-11d3-B88D-00C04FAD5171}
+Provider =3D %ManufacturerName%
+CatalogFile =3D virt2phys.cat
+DriverVer =3D
+
+[DestinationDirs]
+DefaultDestDir =3D 12
+
+; =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Class section =3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
+
+[ClassInstall32]
+Addreg =3D virt2phys_ClassReg
+
+[virt2phys_ClassReg]
+HKR,,,0,%ClassName%
+HKR,,Icon,,-5
+
+[SourceDisksNames]
+1 =3D %DiskName%,,,""
+
+[SourceDisksFiles]
+virt2phys.sys =3D 1,,
+
+;*****************************************
+; Install Section
+;*****************************************
+
+[Manufacturer]
+%ManufacturerName%=3DStandard,NT$ARCH$
+
+[Standard.NT$ARCH$]
+%virt2phys.DeviceDesc%=3Dvirt2phys_Device, Root\virt2phys
+
+[virt2phys_Device.NT]
+CopyFiles =3D Drivers_Dir
+
+[Drivers_Dir]
+virt2phys.sys
+
+;-------------- Service installation
+[virt2phys_Device.NT.Services]
+AddService =3D virt2phys,%SPSVCINST_ASSOCSERVICE%, virt2phys_Service_Inst
+
+; -------------- virt2phys driver install sections
+[virt2phys_Service_Inst]
+DisplayName =3D %virt2phys.SVCDESC%
+ServiceType =3D 1 ; SERVICE_KERNEL_DRIVER
+StartType =3D 3 ; SERVICE_DEMAND_START
+ErrorControl =3D 1 ; SERVICE_ERROR_NORMAL
+ServiceBinary =3D %12%\virt2phys.sys
+
+[Strings]
+SPSVCINST_ASSOCSERVICE =3D 0x00000002
+ManufacturerName =3D "Dmitry Kozlyuk"
+ClassName =3D "Kernel bypass"
+DiskName =3D "virt2phys Installation Disk"
+virt2phys.DeviceDesc =3D "Virtual to physical address translator"
+virt2phys.SVCDESC =3D "virt2phys Service"
diff --git a/windows/virt2phys/virt2phys.sln b/windows/virt2phys/virt2phys.=
sln
new file mode 100755
index 0000000..0f5ecdc
--- /dev/null
+++ b/windows/virt2phys/virt2phys.sln
@@ -0,0 +1,27 @@
+=EF=BB=BF=0D
+Microsoft Visual Studio Solution File, Format Version 12.00=0D
+# Visual Studio Version 16=0D
+VisualStudioVersion =3D 16.0.29613.14=0D
+MinimumVisualStudioVersion =3D 10.0.40219.1=0D
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") =3D "virt2phys", "virt2p=
hys.vcxproj", "{0EEF826B-9391-43A8-A722-BDD6F6115137}"=0D
+EndProject=0D
+Global=0D
+ GlobalSection(SolutionConfigurationPlatforms) =3D preSolution=0D
+ Debug|x64 =3D Debug|x64=0D
+ Release|x64 =3D Release|x64=0D
+ EndGlobalSection=0D
+ GlobalSection(ProjectConfigurationPlatforms) =3D postSolution=0D
+ {0EEF826B-9391-43A8-A722-BDD6F6115137}.Debug|x64.ActiveCfg =3D Debug|x64=
=0D
+ {0EEF826B-9391-43A8-A722-BDD6F6115137}.Debug|x64.Build.0 =3D Debug|x64=0D
+ {0EEF826B-9391-43A8-A722-BDD6F6115137}.Debug|x64.Deploy.0 =3D Debug|x64=
=0D
+ {0EEF826B-9391-43A8-A722-BDD6F6115137}.Release|x64.ActiveCfg =3D Release=
|x64=0D
+ {0EEF826B-9391-43A8-A722-BDD6F6115137}.Release|x64.Build.0 =3D Release|x=
64=0D
+ {0EEF826B-9391-43A8-A722-BDD6F6115137}.Release|x64.Deploy.0 =3D Release|=
x64=0D
+ EndGlobalSection=0D
+ GlobalSection(SolutionProperties) =3D preSolution=0D
+ HideSolutionNode =3D FALSE=0D
+ EndGlobalSection=0D
+ GlobalSection(ExtensibilityGlobals) =3D postSolution=0D
+ SolutionGuid =3D {845012FB-4471-4A12-A1C4-FF7E05C40E8E}=0D
+ EndGlobalSection=0D
+EndGlobal=0D
diff --git a/windows/virt2phys/virt2phys.vcxproj b/windows/virt2phys/virt2p=
hys.vcxproj
new file mode 100755
index 0000000..fa51916
--- /dev/null
+++ b/windows/virt2phys/virt2phys.vcxproj
@@ -0,0 +1,228 @@
+=EF=BB=BF<?xml version=3D"1.0" encoding=3D"utf-8"?>=0D
+<Project DefaultTargets=3D"Build" ToolsVersion=3D"12.0" xmlns=3D"http://sc=
hemas.microsoft.com/developer/msbuild/2003">=0D
+ <ItemGroup Label=3D"ProjectConfigurations">=0D
+ <ProjectConfiguration Include=3D"Debug|Win32">=0D
+ <Configuration>Debug</Configuration>=0D
+ <Platform>Win32</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Release|Win32">=0D
+ <Configuration>Release</Configuration>=0D
+ <Platform>Win32</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Debug|x64">=0D
+ <Configuration>Debug</Configuration>=0D
+ <Platform>x64</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Release|x64">=0D
+ <Configuration>Release</Configuration>=0D
+ <Platform>x64</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Debug|ARM">=0D
+ <Configuration>Debug</Configuration>=0D
+ <Platform>ARM</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Release|ARM">=0D
+ <Configuration>Release</Configuration>=0D
+ <Platform>ARM</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Debug|ARM64">=0D
+ <Configuration>Debug</Configuration>=0D
+ <Platform>ARM64</Platform>=0D
+ </ProjectConfiguration>=0D
+ <ProjectConfiguration Include=3D"Release|ARM64">=0D
+ <Configuration>Release</Configuration>=0D
+ <Platform>ARM64</Platform>=0D
+ </ProjectConfiguration>=0D
+ </ItemGroup>=0D
+ <ItemGroup>=0D
+ <ClCompile Include=3D"virt2phys.c" />=0D
+ </ItemGroup>=0D
+ <ItemGroup>=0D
+ <ClInclude Include=3D"virt2phys.h" />=0D
+ </ItemGroup>=0D
+ <ItemGroup>=0D
+ <Inf Include=3D"virt2phys.inf" />=0D
+ </ItemGroup>=0D
+ <PropertyGroup Label=3D"Globals">=0D
+ <ProjectGuid>{0EEF826B-9391-43A8-A722-BDD6F6115137}</ProjectGuid>=0D
+ <TemplateGuid>{497e31cb-056b-4f31-abb8-447fd55ee5a5}</TemplateGuid>=0D
+ <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>=0D
+ <MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>=0D
+ <Configuration>Debug</Configuration>=0D
+ <Platform Condition=3D"'$(Platform)' =3D=3D ''">Win32</Platform>=0D
+ <RootNamespace>virt2phys</RootNamespace>=0D
+ </PropertyGroup>=0D
+ <Import Project=3D"$(VCTargetsPath)\Microsoft.Cpp.Default.props" />=0D
+ <PropertyGroup Condition=3D"'$(Configuration)|$(Platform)'=3D=3D'Debug|W=
in32'" Label=3D"Configuration">=0D
+ <TargetVersion>Windows10</TargetVersion>=0D
+ <UseDebugLibraries>true</UseDebugLibraries>=0D
+ <PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>=0D
+ <ConfigurationType>Driver</ConfigurationType>=0D
+ <DriverType>KMDF</DriverType>=0D
+ <DriverTargetPlatform>Universal</DriverTargetPlatform>=0D
+ </PropertyGroup>=0D
+ <PropertyGroup Condition=3D"'$(Configuration)|$(Platform)'=3D=3D'Release=
|Win32'" Label=3D"Configuration">=0D
+ <TargetVersion>Windows10</TargetVersion>=0D
+ <UseDebugLibraries>false</UseDebugLibraries>=0D
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