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Re: [Qemu-devel] [PATCH] target-arm/helper.c: fix access rights of SP_EL
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From: |
Tsung-Han Lin |
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Subject: |
Re: [Qemu-devel] [PATCH] target-arm/helper.c: fix access rights of SP_ELs |
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Date: |
Sat, 14 May 2016 20:43:19 +0900 |
2016-05-14 19:08 GMT+09:00 Peter Maydell <address@hidden>:
>
>
> The ARM ARM defines that SP_EL1 is accessible only from
> EL2 or higher via the system-register instructions, and
> SP_EL2 only from EL3 or higher (see table C5-7 on page
> C5-288 of the v8 ARM ARM DDI0487A.h, or the register description
> pages for the two registers). Why do you think this is a correct
> change?
>
> Thanks for the correction. Seems like I misunderstood the spec.
> thanks
> -- PMM
>