Re: [Qemu-devel] [PATCH 12/20] target/arm: Add v8M support to exception entry code

[Richard Henderson]

On 09/22/2017 10:59 AM, Peter Maydell wrote:
> Add support for v8M and in particular the security extension
> to the exception entry code. This requires changes to:
>  * calculation of the exception-return magic LR value
>  * push the callee-saves registers in certain cases
>  * clear registers when taking non-secure exceptions to avoid
>    leaking information from the interrupted secure code
>  * switch to the correct security state on entry
>  * use the vector table for the security state we're targeting
> 
> Signed-off-by: Peter Maydell <address@hidden>
> ---
>  target/arm/helper.c | 165 
> +++++++++++++++++++++++++++++++++++++++++++++-------
>  1 file changed, 145 insertions(+), 20 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


r~