From: Richard Henderson <richard.henderson@linaro.org>
To: Rebecca Cran <rebecca@nuviainc.com>, qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>
Subject: Re: [PATCH v2 2/3] target/arm: Add support for FEAT_DIT, Data Independent Timing
Date: Fri, 22 Jan 2021 11:07:22 -1000 [thread overview]
Message-ID: <d8ec61d6-d256-fa7c-e0d7-fabfc6d90d3d@linaro.org> (raw)
In-Reply-To: <20210122044537.1823-3-rebecca@nuviainc.com>
On 1/21/21 6:45 PM, Rebecca Cran wrote:
> Add support for FEAT_DIT. DIT (Data Independent Timing) is a required
> feature for ARMv8.4. Since virtual machine execution is largely
> nondeterministic and TCG is outside of the security domain, it's
> implemented as a NOP.
>
> Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
> ---
> target/arm/cpu.h | 12 +++++++++++
> target/arm/helper.c | 22 ++++++++++++++++++++
> target/arm/internals.h | 6 ++++++
> target/arm/translate-a64.c | 12 +++++++++++
> 4 files changed, 52 insertions(+)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2021-01-22 21:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 4:45 [PATCH v2 0/3] target/arm: Add support for FEAT_DIT, Data Independent Timing Rebecca Cran
2021-01-22 4:45 ` [PATCH v2 1/3] target/arm: Remove PSTATE_SS from cpsr and move it into env->pstate Rebecca Cran
2021-01-22 21:03 ` Richard Henderson
2021-01-23 0:28 ` Rebecca Cran
2021-01-22 4:45 ` [PATCH v2 2/3] target/arm: Add support for FEAT_DIT, Data Independent Timing Rebecca Cran
2021-01-22 21:07 ` Richard Henderson [this message]
2021-01-22 4:45 ` [PATCH v2 3/3] target/arm: Set ID_AA64PFR0.DIT and ID_PFR0.DIT to 1 for "max" AA64 CPU Rebecca Cran
2021-01-22 21:06 ` Richard Henderson
2021-01-23 0:27 ` Rebecca Cran
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