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Re: [Qemu-arm] [Qemu-devel] [PATCH v2 11/11] target/arm: Implement v8M M


From: Richard Henderson
Subject: Re: [Qemu-arm] [Qemu-devel] [PATCH v2 11/11] target/arm: Implement v8M MSPLIM and PSPLIM registers
Date: Fri, 9 Feb 2018 13:15:51 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 02/09/2018 08:58 AM, Peter Maydell wrote:
> The v8M architecture includes hardware support for enforcing
> stack pointer limits. We don't implement this behaviour yet,
> but provide the MSPLIM and PSPLIM stack pointer limit registers
> as reads-as-written, so that when we do implement the checks
> in future this won't break guest migration.
> 
> Signed-off-by: Peter Maydell <address@hidden>
> ---
>  target/arm/cpu.h     |  2 ++
>  target/arm/helper.c  | 46 ++++++++++++++++++++++++++++++++++++++++++++++
>  target/arm/machine.c | 21 +++++++++++++++++++++
>  3 files changed, 69 insertions(+)

Reviewed-by: Richard Henderson <address@hidden>


r~




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