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Re: [Qemu-devel] [PATCH 2/5] target/arm: Honour HCR_EL2.TGE and MDCR_EL2

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 2/5] target/arm: Honour HCR_EL2.TGE and MDCR_EL2.TDE in debug register access checks
Date: Tue, 24 Jul 2018 11:52:25 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

On 07/24/2018 04:59 AM, Peter Maydell wrote:
> Some debug registers can be trapped via MDCR_EL2 bits TDRA, TDOSA,
> and TDA, which we implement in the functions access_tdra(),
> access_tdosa() and access_tda(). If MDCR_EL2.TDE or HCR_EL2.TGE
> are 1, the TDRA, TDOSA and TDA bits should behave as if they were 1.
> Implement this by having the access functions check MDCR_EL2.TDE
> and HCR_EL2.TGE.
> Signed-off-by: Peter Maydell <address@hidden>
> ---
>  target/arm/helper.c | 18 ++++++++++++------
>  1 file changed, 12 insertions(+), 6 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


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