[PATCH] ARM: omap5/dra7xx: Enable booting secondary CPU in HYP mode

Tony Lindgren tony at atomide.com
Mon Jan 5 14:33:47 PST 2015


* Lennart Sorensen <lsorense at csclub.uwaterloo.ca> [141219 13:51]:
> If the boot loader enables HYP mode on the boot CPU, the secondary CPU
> also needs to call into the ROM to switch to HYP mode before booting.
> The firmwares on the omap5 and dra7xx unfortunately do not take care
> of this, so it has to be handled by the kernel.
> 
> This patch is based on "[PATCH 2/2] ARM: OMAP5: Add HYP mode entry support
> for secondary CPUs" by Santosh Shilimkar <santosh.shilimkar at ti.com>,
> except this version does not require a compile time CONFIG to control
> if it should enable HYP mode or not, it simply does it based on the mode
> of the boot CPU, so it works whether the CPU boots in SVC or HYP mode,
> and should even work as a guest kernel inside kvm if qemu decides to
> support emulating the omap5 or dra7xx.

Applying into omap-for-v3.19/fixes with cc stable for v3.16+.

Thanks,

Tony



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