tegrakernel/kernel/kernel-4.9/drivers/gpu/drm/i915/gvt/mpt.h

50 lines
1.9 KiB
C

/*
* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _GVT_MPT_H_
#define _GVT_MPT_H_
/**
* DOC: Hypervisor Service APIs for GVT-g Core Logic
*
* This is the glue layer between specific hypervisor MPT modules and GVT-g core
* logic. Each kind of hypervisor MPT module provides a collection of function
* callbacks and will be attached to GVT host when the driver is loading.
* GVT-g core logic will call these APIs to request specific services from
* hypervisor.
*/
/**
* intel_gvt_hypervisor_detect_host - check if GVT-g is running within
* hypervisor host/privilged domain
*
* Returns:
* Zero on success, -ENODEV if current kernel is running inside a VM
*/
static inline int intel_gvt_hypervisor_detect_host(void)
{
return intel_gvt_host.mpt->detect_host();
}
#endif /* _GVT_MPT_H_ */