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Re: [Qemu-arm] [PATCH v5 22/24] target/arm: Implement ARMv8.5-RNG

From: Peter Maydell
Subject: Re: [Qemu-arm] [PATCH v5 22/24] target/arm: Implement ARMv8.5-RNG
Date: Fri, 10 May 2019 17:20:30 +0100

On Fri, 10 May 2019 at 17:17, Richard Henderson
<address@hidden> wrote:
> On 5/10/19 9:01 AM, Peter Maydell wrote:
> > Don't these need to be marked ARM_CP_IO for the benefit
> > of -icount ?
> I don't think so.  There's no lock taken, as for mmio devices.  It's not not
> related to time, virtual or otherwise.  There are no possible exceptions.  I
> can't think of anything that would make icount care.
> Have I missed something?

If icount decides it needs to replay execution of the TB
which the RNDR access is in, won't it get a different
number back the second time it executes ?

-- PMM

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