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https://github.com/arehnman/yttrium-virtio-gpu.git
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83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/*
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* This file contains balloon driver routines
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*
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* Copyright (c) 2009-2017 Red Hat, Inc.
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*
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* Author(s):
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* Vadim Rozenfeld <[email protected]>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met :
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and / or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of their contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "precomp.h"
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#if defined(EVENT_TRACING)
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#include "Driver.tmh"
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#endif
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#pragma alloc_text(INIT, DriverEntry)
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#pragma alloc_text(PAGE, EvtDriverContextCleanup)
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NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
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{
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WDF_DRIVER_CONFIG config;
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NTSTATUS status;
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WDFDRIVER driver;
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WDF_OBJECT_ATTRIBUTES attrib;
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ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
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InitializeDebugPrints(DriverObject, RegistryPath);
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TraceEvents(TRACE_LEVEL_WARNING, DBG_HW_ACCESS, "Balloon driver, built on %s %s\n", __DATE__, __TIME__);
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WDF_OBJECT_ATTRIBUTES_INIT(&attrib);
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attrib.EvtCleanupCallback = EvtDriverContextCleanup;
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WDF_DRIVER_CONFIG_INIT(&config, BalloonDeviceAdd);
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status = WdfDriverCreate(DriverObject, RegistryPath, &attrib, &config, &driver);
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if (!NT_SUCCESS(status))
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{
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TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP, "WdfDriverCreate failed with status 0x%08x\n", status);
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WPP_CLEANUP(DriverObject);
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return status;
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}
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TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "<-- %s\n", __FUNCTION__);
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return status;
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}
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VOID EvtDriverContextCleanup(IN WDFOBJECT Driver)
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{
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UNREFERENCED_PARAMETER(Driver);
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PAGED_CODE();
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TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "--> %s\n", __FUNCTION__);
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WPP_CLEANUP(WdfDriverWdmGetDriverObject((WDFDRIVER)Driver));
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TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "<-- %s\n", __FUNCTION__);
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}
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