linux_dsm_epyc7002/drivers/gpu/drm/i915/gvt/hypercall.h
Changbin Du 79e542f5af drm/i915/kvmgt: Support setting dma map for huge pages
To support huge gtt, we need to support huge pages in kvmgt first.
This patch adds a 'size' param to the intel_gvt_mpt::dma_map_guest_page
API and implements it in kvmgt.

v2: rebase.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2018-07-09 10:34:28 +08:00

73 lines
2.9 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.
*
* Authors:
* Eddie Dong <eddie.dong@intel.com>
* Dexuan Cui
* Jike Song <jike.song@intel.com>
*
* Contributors:
* Zhi Wang <zhi.a.wang@intel.com>
*
*/
#ifndef _GVT_HYPERCALL_H_
#define _GVT_HYPERCALL_H_
/*
* Specific GVT-g MPT modules function collections. Currently GVT-g supports
* both Xen and KVM by providing dedicated hypervisor-related MPT modules.
*/
struct intel_gvt_mpt {
int (*host_init)(struct device *dev, void *gvt, const void *ops);
void (*host_exit)(struct device *dev, void *gvt);
int (*attach_vgpu)(void *vgpu, unsigned long *handle);
void (*detach_vgpu)(unsigned long handle);
int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
unsigned long (*from_virt_to_mfn)(void *p);
int (*enable_page_track)(unsigned long handle, u64 gfn);
int (*disable_page_track)(unsigned long handle, u64 gfn);
int (*read_gpa)(unsigned long handle, unsigned long gpa, void *buf,
unsigned long len);
int (*write_gpa)(unsigned long handle, unsigned long gpa, void *buf,
unsigned long len);
unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn);
int (*dma_map_guest_page)(unsigned long handle, unsigned long gfn,
unsigned long size, dma_addr_t *dma_addr);
void (*dma_unmap_guest_page)(unsigned long handle, dma_addr_t dma_addr);
int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn,
unsigned long mfn, unsigned int nr, bool map);
int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
bool map);
int (*set_opregion)(void *vgpu);
int (*get_vfio_device)(void *vgpu);
void (*put_vfio_device)(void *vgpu);
bool (*is_valid_gfn)(unsigned long handle, unsigned long gfn);
};
extern struct intel_gvt_mpt xengt_mpt;
extern struct intel_gvt_mpt kvmgt_mpt;
#endif /* _GVT_HYPERCALL_H_ */