/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * 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 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.
 */

#include <trusty/arm_ffa.h>
#include <trusty/trusty_mem.h>

#define NS_PTE_MAIR_SHIFT 48
#define NS_MAIR_NORMAL_UNCACHED 0x44 /* uncached */

int trusty_encode_page_info(struct ns_mem_page_info* inf, void* va) {
    /* Always report normal uncached memory as we are running without the MMU */
    inf->paddr = (uint64_t)va;
    inf->ffa_mem_attr = FFA_MEM_ATTR_NORMAL_MEMORY_UNCACHED;
    inf->ffa_mem_perm = FFA_MEM_PERM_RW;
    inf->attr = (uint64_t)va |
                ((uint64_t)NS_MAIR_NORMAL_UNCACHED << NS_PTE_MAIR_SHIFT);

    return 0;
}