Subversion Repositories c0or1k

/*

 * Exchange registers system call data.

 *

 * Copyright (C) 2008 Bahadir Balban

 */

#ifndef __EXREGS_H__

#define __EXREGS_H__

#include <l4/macros.h>

#include INC_GLUE(syscall.h)

#include INC_GLUE(context.h)

#include <l4/types.h>

#define EXREGS_SET_PAGER                1

#define EXREGS_SET_UTCB                 2

#define EXREGS_READ                     4

#define EXREGS_VALID_REGULAR_REGS                       \

        (FIELD_TO_BIT(exregs_context_t, r0) |           \

         FIELD_TO_BIT(exregs_context_t, r1) |           \

         FIELD_TO_BIT(exregs_context_t, r2) |           \

         FIELD_TO_BIT(exregs_context_t, r3) |           \

         FIELD_TO_BIT(exregs_context_t, r4) |           \

         FIELD_TO_BIT(exregs_context_t, r5) |           \

         FIELD_TO_BIT(exregs_context_t, r6) |           \

         FIELD_TO_BIT(exregs_context_t, r7) |           \

         FIELD_TO_BIT(exregs_context_t, r8) |           \

         FIELD_TO_BIT(exregs_context_t, r9) |           \

         FIELD_TO_BIT(exregs_context_t, r10) |          \

         FIELD_TO_BIT(exregs_context_t, r11) |          \

         FIELD_TO_BIT(exregs_context_t, r12) |          \

         FIELD_TO_BIT(exregs_context_t, lr))            \

#define EXREGS_VALID_SP                                 \

        FIELD_TO_BIT(exregs_context_t, sp)              \

#define EXREGS_VALID_PC                                 \

        FIELD_TO_BIT(exregs_context_t, pc)              \

/* Structure passed by userspace pagers for exchanging registers */

struct exregs_data {

        exregs_context_t context;

        u32 valid_vect;

        u32 flags;

        l4id_t pagerid;

        unsigned long utcb_address;

};

#endif /* __EXREGS_H__ */