Re: [Xen-devel] [PATCH] xen/arm: Support kick cpus and switch to hypervisor for the OMAP5

[Chen Baozi <baozich@xxxxxxxxx>]

On Aug 15, 2013, at 5:34 PM, Andrii Anisov <andrii.anisov@xxxxxxxxxxxxxxx> 
wrote:

> Chen,
> 
> Could you please explain how this code switches to hyp mode?
> I do not see related code.

The actual mode switch codes is in the end of mode_switch.sï

        mrs     r0, cpsr        /* Copy the CPSR */
        add     r0, r0, #0x4    /* 0x16 (Monitor) -> 0x1a (Hyp) */
        msr     spsr_cxsf, r0   /* into the SPSR */

Hmmm, I think my patch name should be more accurate. It mainly added
OMAP5 support in "enter_hyp_mode" routine, which actually makes it
set cntfrq of arch_timer properly in secure mode.

Cheers,

Baozi


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