Re: [PATCH v3 0/7] memory: prevent dma-reentracy issues

[Philippe Mathieu-Daudé]

On 10/11/22 21:50, Stefan Hajnoczi wrote:
> Preventing this class of bugs is important but QEMU is currently
> frozen for the 7.2 release. I'm a little concerned about regressions
> in a patch series that changes core device emulation code.

I'm waiting for Alex's MemTxRequesterType field addition in
MemTxAttrs [1] lands to rework my previous approach using
flatview_access_allowed() instead of access_with_adjusted_size()
[2]. I haven't looked at this series in detail, but since the
permission check is done on the Memory API layer, I might have
missed something in my previous intent (by using the FlatView
layer).

[1] 
20221111182535.64844-2-alex.bennee@linaro.org/">https://lore.kernel.org/qemu-devel/20221111182535.64844-2-alex.bennee@linaro.org/
[2] 
https://lore.kernel.org/qemu-devel/20211215182421.418374-4-philmd@redhat.com/

> I'll review the series on Monday and if anyone has strong opinions on
> whether to merge this into 7.2, please say so. My thoughts are that
> this should be merged in the 7.3 release cycle so there's time to work
> out any issues.
>
> Stefan