From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Date: Fri, 06 Dec 2013 16:00:38 +0000 Subject: [U-Boot] [PATCH 0/9] ARMv7: add PSCI support to u-boot In-Reply-To: <52A1CB19.5020208@linaro.org> References: <1385024402-23585-1-git-send-email-marc.zyngier@arm.com> <52A1B86F.2020207@linaro.org> <52A1BF29.5020700@arm.com> <52A1CB19.5020208@linaro.org> Message-ID: <52A1F4A6.7020909@arm.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 06/12/13 13:03, Andre Przywara wrote: > Yes, there is indeed this problem with the pen. Maybe one can use your > upcoming relocation code to move the pen to a more secure place (defined > per platform). Yes, that's what I've done. Also rewritten some of it to be able to execute solely in secure mode (you can't do SMC+HVC there, as you'd try to run non-secure from secure RAM...). > With "avoid dealing with a pen" you mean to wakeup from the system's pen > and immediately jump to the OS init code, without staying in a wfi loop > in some special memory? Even better, waking up the CPUs from power-off directly, configuring the per-cpu part of the GIC and jumping to the kernel. Almost nothing. M. -- Jazz is not dead. It just smells funny...