Re: [PATCH 0/2] target/arm: Fix unwind from dc zva and FEAT_MOPS

[Richard Henderson]

On 7/8/24 07:25, Peter Maydell wrote:
> On Wed, 3 Jul 2024 at 00:43, Richard Henderson
> <richard.henderson@linaro.org> wrote:
> > While looking into Zoltan's attempt to speed up ppc64 DCBZ
> > (data cache block set to zero), I wondered what AArch64 was
> > doing differently.  It turned out that Arm is the only user
> > of tlb_vaddr_to_host.
>
> riscv also seems to use it in vext_ldff(), fwiw.

So it does, followed by a second probe for read.
That's quite wrong...

But you're right that it has a similar race condition.


r~