From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Secure memory
Date: Fri, 6 Nov 2015 14:10:31 -0800 [thread overview]
Message-ID: <563D2557.6040302@freescale.com> (raw)
Albert,
I am trying to separate secure memory and non-secure memory for ARMv8. Before I
go too far, I'd like to check with you to see if there is already some code
implemented.
Basically what I am trying to do is to mark most DDR memory non-secure because
we have some non-secure masters such as SDHC DMA. I also want to reserve some
memory for TrustZone application. In order to do that, I need to put the MMU
tables in secure memory. I will need to modify common/board_f.c to process
reserve_mmu() differently for secure and non-secure mode.
Please let me know if running u-boot in non-secure mode is a bad idea.
York
next reply other threads:[~2015-11-06 22:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-06 22:10 York Sun [this message]
2015-11-09 23:54 ` [U-Boot] Secure memory York Sun
2015-11-10 12:17 ` Albert ARIBAUD
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