uint32_t pt_large_entry(intptr_t phys_addr,
enum access priv, enum access unpri,
enum mem_type type,
enum mem_cache cache_in, enum mem_cache cache_out,
bool executable, bool shared, bool global) {
uint8_t mem_attr = get_mem_attr(type, cache_in, cache_out);
return
(phys_addr & ((PT_SIZE << 1) - 1)) |
PAG_ACC[priv][unpri] |
(executable ? 0 : PAGL_XN) |
(shared ? PAG_SHARE : 0) |
(global ? 0 : PAG_nG) |
((mem_attr & 0x0F) << 2) |
((mem_attr & 0xF0) << 8) |
PTE_T_PAGL;
}
uint32_t pd_section_entry(intptr_t phys_addr, uint8_t domain,
enum access priv, enum access unpri,
enum mem_type type,
enum mem_cache cache_in, enum mem_cache cache_out,
bool executable, bool shared, bool global) {
uint8_t mem_attr = get_mem_attr(type, cache_in, cache_out);
return
(phys_addr & (SECTION_SIZE - 1)) |
PDE_DOMAIN(domain) |
SEC_ACC[priv][unpri] |
(executable ? 0 : SEC_XN) |
(shared ? SEC_SHARE : 0) |
(global ? 0 : SEC_nG) |
((mem_attr & 0x0F) << 2) |
((mem_attr & 0xF0) << 8) |
PDE_T_SEC;
}
int trusty_encode_page_info(struct ns_mem_page_info *inf,
struct page *page, pgprot_t pgprot)
{
int mem_attr;
uint64_t pte;
if (!inf || !page)
return -EINVAL;
/* get physical address */
pte = (uint64_t) page_to_phys(page);
/* get memory attributes */
mem_attr = get_mem_attr(page, pgprot);
if (mem_attr < 0)
return mem_attr;
if (pgprot_val(pgprot) & _PAGE_USER)
pte |= (1 << 6);
if (!(pgprot_val(pgprot) & _PAGE_RW))
pte |= (1 << 7);
inf->attr = (pte & 0x0000FFFFFFFFFFFFull) | ((uint64_t)mem_attr << 48);
return 0;
}
