memory.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <security/intel/txt/txt.h>
#include <stdbool.h>
 
#include "memory.h"
 
/**
 * To be called after DRAM init.
 * Tells the caller if DRAM must be cleared as requested by the user,
 * firmware or security framework.
 */
bool security_clear_dram_request(void)
{
        if (CONFIG(SECURITY_CLEAR_DRAM_ON_REGULAR_BOOT))
                return true;
 
        if (CONFIG(INTEL_TXT) && intel_txt_memory_has_secrets())
                return true;
 
        /* TODO: Add TEE environments here */
 
        return false;
}