43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright(c) 2023 Advanced Micro Devices, Inc. */
|
|
|
|
#ifndef _LM_H_
|
|
#define _LM_H_
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/pds/pds_common.h>
|
|
#include <linux/pds/pds_adminq.h>
|
|
|
|
struct pds_vfio_lm_file {
|
|
struct file *filep;
|
|
struct mutex lock; /* protect live migration data file */
|
|
u64 size; /* Size with valid data */
|
|
u64 alloc_size; /* Total allocated size. Always >= len */
|
|
void *page_mem; /* memory allocated for pages */
|
|
struct page **pages; /* Backing pages for file */
|
|
unsigned long long npages;
|
|
struct sg_table sg_table; /* SG table for backing pages */
|
|
struct pds_lm_sg_elem *sgl; /* DMA mapping */
|
|
dma_addr_t sgl_addr;
|
|
u16 num_sge;
|
|
struct scatterlist *last_offset_sg; /* Iterator */
|
|
unsigned int sg_last_entry;
|
|
unsigned long last_offset;
|
|
bool disabled;
|
|
};
|
|
|
|
struct pds_vfio_pci_device;
|
|
|
|
struct file *
|
|
pds_vfio_step_device_state_locked(struct pds_vfio_pci_device *pds_vfio,
|
|
enum vfio_device_mig_state next);
|
|
|
|
void pds_vfio_put_save_file(struct pds_vfio_pci_device *pds_vfio);
|
|
void pds_vfio_put_restore_file(struct pds_vfio_pci_device *pds_vfio);
|
|
|
|
#endif /* _LM_H_ */
|