cross_state_manager.h

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#pragma once

//#ifdef HAVE_CROSS_STATE

#include <linux/ioctl.h>

#define CROSS_STATE_IOCTL_MAGIC 'R'

/* core user defined parameters */
#define SIBLING_PGD 128 // max number of concurrent memory views (concurrent root-sim worker threads on a node)
#define MAX_CROSS_STATE_DEPENDENCIES 1024 // max number of cross-state dependencied per LP at each event

#ifndef IOCTL_STRUCT
#define IOCTL_STRUCT

typedef struct _ioctl_info{
    int ds;
    void *addr;
    int id;
    unsigned int count;
    unsigned int *objects;
    unsigned mapped_processes;

    ulong callback;

    void *base_address;
    int page_count;
    int write_mode;
} ioctl_info;

#endif


#define ECS_MAJOR_FAULT 0
#define ECS_MINOR_FAULT 1
#define ECS_CHANGE_PAGE_PRIVILEGE   2

typedef struct _fault_info_t {
    long long rcx;
    long long rip;
    long long target_address;
    unsigned long target_gid;
    unsigned char fault_type;
} fault_info_t;

// Setup all ioctl commands
#define IOCTL_GET_PGD _IOW(CROSS_STATE_IOCTL_MAGIC, 1, void *)
#define IOCTL_SET_ANCESTOR_PGD _IO(CROSS_STATE_IOCTL_MAGIC, 2)
#define IOCTL_SET_VM_RANGE _IOW(CROSS_STATE_IOCTL_MAGIC, 3, ioctl_info *)
#define IOCTL_SCHEDULE_ON_PGD _IOW(CROSS_STATE_IOCTL_MAGIC, 4, ioctl_info *)
#define IOCTL_UNSCHEDULE_ON_PGD _IOW(CROSS_STATE_IOCTL_MAGIC, 5, int)
#define IOCTL_SET_PAGE_PRIVILEGE _IOW(CROSS_STATE_IOCTL_MAGIC, 6, int)
#define IOCTL_PROTECT_REMOTE_LP _IOW(CROSS_STATE_IOCTL_MAGIC, 7, int)

// Macros to access subportions of an address
#define PML4(addr) (((long long)(addr) >> 39) & 0x1ff)
#define PDP(addr)  (((long long)(addr) >> 30) & 0x1ff)
#define PDE(addr)  (((long long)(addr) >> 21) & 0x1ff)
#define PTE(addr)  (((long long)(addr) >> 12) & 0x1ff)

#define OBJECT_TO_PML4(object_id) ((ulong)object_id >> 9 )
#define OBJECT_TO_PDP(object_id) ((ulong)object_id &  0x1ff)
#define GET_ADDRESS(addr)  ( (((long long)(addr)) & ((1LL << 40) - 1)) >> 12)
#define PML4_PLUS_ONE(addr) (void *)((long long)(addr) + (1LL << 39))

#define MASK_PTADDR 0x07FFFFFFFFFFF000
#define MASK_PTCONT 0xF800000000000FFF

//#endif /* HAVE_CROSS_STATE */