Exemplos de tee_mmu_user_pa2va_helper em C++ (Cpp)

Exemplo n.º 1

Arquivo: core_mmu.c Projeto: lackan/optee_os

static void *phys_to_virt_ta_vaspace(paddr_t pa)
{
	TEE_Result res;
	void *va = NULL;

	if (!core_mmu_user_mapping_is_active())
		return NULL;

	res = tee_mmu_user_pa2va_helper(to_user_ta_ctx(tee_mmu_get_ctx()),
					pa, &va);
	if (res != TEE_SUCCESS)
		return NULL;
	return va;
}

Exemplo n.º 2

Arquivo: tee_mmu.c Projeto: Machiry/optee_os

TEE_Result tee_mmu_map_param(struct user_ta_ctx *utc,
		struct tee_ta_param *param)
{
	TEE_Result res = TEE_SUCCESS;
	size_t n;

	/* Clear all the param entries as they can hold old information */
	memset(utc->mmu->table + TEE_MMU_UMAP_PARAM_IDX, 0,
		(TEE_MMU_UMAP_MAX_ENTRIES - TEE_MMU_UMAP_PARAM_IDX) *
		sizeof(struct tee_mmap_region));

	for (n = 0; n < 4; n++) {
		uint32_t param_type = TEE_PARAM_TYPE_GET(param->types, n);
		TEE_Param *p = &param->params[n];
		uint32_t attr = TEE_MMU_UDATA_ATTR;

		if (param_type != TEE_PARAM_TYPE_MEMREF_INPUT &&
		    param_type != TEE_PARAM_TYPE_MEMREF_OUTPUT &&
		    param_type != TEE_PARAM_TYPE_MEMREF_INOUT)
			continue;
		
		if(param_type == TEE_PARAM_TYPE_MEMREF_INPUT)
			attr = TEE_MMU_UDATA_RATTR;
		if (p->memref.size == 0)
			continue;

		if (tee_pbuf_is_non_sec(p->memref.buffer, p->memref.size))
			attr &= ~TEE_MATTR_SECURE;

		if (param->param_attr[n] == OPTEE_SMC_SHM_CACHED)
			attr |= TEE_MATTR_CACHE_CACHED << TEE_MATTR_CACHE_SHIFT;
		else
			attr |= TEE_MATTR_CACHE_NONCACHE <<
				TEE_MATTR_CACHE_SHIFT;

		res = tee_mmu_umap_add_param(utc->mmu,
				(paddr_t)p->memref.buffer, p->memref.size,
				attr);
		if (res != TEE_SUCCESS)
			return res;
	}

	res = tee_mmu_umap_set_vas(utc->mmu);
	if (res != TEE_SUCCESS)
		return res;

	for (n = 0; n < 4; n++) {
		uint32_t param_type = TEE_PARAM_TYPE_GET(param->types, n);
		TEE_Param *p = &param->params[n];

		if (param_type != TEE_PARAM_TYPE_MEMREF_INPUT &&
		    param_type != TEE_PARAM_TYPE_MEMREF_OUTPUT &&
		    param_type != TEE_PARAM_TYPE_MEMREF_INOUT)
			continue;
		if (p->memref.size == 0)
			continue;

		res = tee_mmu_user_pa2va_helper(utc, (paddr_t)p->memref.buffer,
					 &p->memref.buffer);
		if (res != TEE_SUCCESS)
			return res;
	}

	utc->mmu->ta_private_vmem_start = utc->mmu->table[0].va;

	n = TEE_MMU_UMAP_MAX_ENTRIES;
	do {
		n--;
	} while (n && !utc->mmu->table[n].size);
	utc->mmu->ta_private_vmem_end = utc->mmu->table[n].va +
					utc->mmu->table[n].size;

	return check_pgt_avail(utc->mmu->ta_private_vmem_start,
			       utc->mmu->ta_private_vmem_end);
}