mirror of
https://github.com/arehnman/yttrium-virtio-gpu.git
synced 2026-10-31 02:05:04 +00:00
96 lines
3.3 KiB
C
Executable File
96 lines
3.3 KiB
C
Executable File
/*
|
|
* This file contains balloon driver routines
|
|
*
|
|
* Copyright (c) 2009-2017 Red Hat, Inc.
|
|
*
|
|
* Author(s):
|
|
* Vadim Rozenfeld <[email protected]>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met :
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and / or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of their contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
#include "precomp.h"
|
|
|
|
#if defined(EVENT_TRACING)
|
|
#include "Driver.tmh"
|
|
#endif
|
|
|
|
#pragma alloc_text(INIT, DriverEntry)
|
|
#pragma alloc_text(PAGE, EvtDriverContextCleanup)
|
|
|
|
NTSTATUS DriverEntry(
|
|
IN PDRIVER_OBJECT DriverObject,
|
|
IN PUNICODE_STRING RegistryPath
|
|
)
|
|
{
|
|
WDF_DRIVER_CONFIG config;
|
|
NTSTATUS status;
|
|
WDFDRIVER driver;
|
|
WDF_OBJECT_ATTRIBUTES attrib;
|
|
|
|
#if (NTDDI_VERSION > NTDDI_WIN7)
|
|
ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
|
|
#endif
|
|
InitializeDebugPrints( DriverObject, RegistryPath);
|
|
|
|
TraceEvents(TRACE_LEVEL_WARNING, DBG_HW_ACCESS, "Balloon driver, built on %s %s\n",
|
|
__DATE__, __TIME__);
|
|
|
|
WDF_OBJECT_ATTRIBUTES_INIT(&attrib);
|
|
attrib.EvtCleanupCallback = EvtDriverContextCleanup;
|
|
|
|
WDF_DRIVER_CONFIG_INIT(&config, BalloonDeviceAdd);
|
|
|
|
status = WdfDriverCreate(
|
|
DriverObject,
|
|
RegistryPath,
|
|
&attrib,
|
|
&config,
|
|
&driver);
|
|
if(!NT_SUCCESS(status))
|
|
{
|
|
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,"WdfDriverCreate failed with status 0x%08x\n", status);
|
|
WPP_CLEANUP(DriverObject);
|
|
return status;
|
|
}
|
|
|
|
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP,"<-- %s\n", __FUNCTION__);
|
|
|
|
return status;
|
|
}
|
|
|
|
VOID
|
|
EvtDriverContextCleanup(
|
|
IN WDFOBJECT Driver
|
|
)
|
|
{
|
|
UNREFERENCED_PARAMETER(Driver);
|
|
PAGED_CODE ();
|
|
|
|
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP,"--> %s\n", __FUNCTION__);
|
|
|
|
WPP_CLEANUP(WdfDriverWdmGetDriverObject( (WDFDRIVER)Driver ));
|
|
|
|
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "<-- %s\n", __FUNCTION__);
|
|
}
|