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From: Peter Maydell <peter.maydell@linaro.org>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: qemu-arm <qemu-arm@nongnu.org>, QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [PATCH] target/arm: don't bother with id_aa64pfr0_read for USER_ONLY
Date: Fri, 6 Dec 2019 15:29:21 +0000	[thread overview]
Message-ID: <CAFEAcA9S51DWqysHbO42CjOhZBMA4qwN2zT+isOmWFtH5G8N3Q@mail.gmail.com> (raw)
In-Reply-To: <20191206122247.7507-1-alex.bennee@linaro.org>

On Fri, 6 Dec 2019 at 12:22, Alex Bennée <alex.bennee@linaro.org> wrote:
>
> For system emulation we need to check the state of the GIC before we
> report the value. However this isn't relevant to exporting of the
> value to linux-user and indeed breaks the exported value as set by
> modify_arm_cp_regs.
>
> [AJB: the other option would be just to set reset value anyway and not
> ifdef out the readfn as the register will become const anyway]

If you want it to be const it would be clearer to define it
with ARM_CP_CONST... I'm not sure what an ARM_CP_NO_RAW without
a readfn or a fieldoffset will do on reads.

thanks
-- PMM


  reply	other threads:[~2019-12-06 16:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-06 12:22 [PATCH] target/arm: don't bother with id_aa64pfr0_read for USER_ONLY Alex Bennée
2019-12-06 15:29 ` Peter Maydell [this message]
2019-12-06 17:52   ` Richard Henderson
2019-12-06 18:25   ` Alex Bennée

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