Re: [PATCH v15 2/4] hw/cxl: Make the CXL fixed memory windows devices.

[Jonathan Cameron <Jonathan.Cameron@huawei.com>]

On Fri, 13 Jun 2025 17:08:28 +0100
Peter Maydell <peter.maydell@linaro.org> wrote:

> On Fri, 13 Jun 2025 at 14:10, Jonathan Cameron
> <Jonathan.Cameron@huawei.com> wrote:
> > For these specific devices (the fixed memory windows) there isn't
> > any state as they are representing fixed configuration of the system.
> > The state is all in the host bridges and beyond. I'll add
> > a comment as you suggest.
> >
> > Currently CXL emulation is completely broken wrt to migration and
> > there are some known issues for reset as well. Both are on the list
> > of things to fix. Migration is less important as the only current use
> > for this stuff is running software stack test cases and for that
> > migration isn't currently of interest - that will change for some
> > of the virtualization related work that is just getting started.  
> 
> That's OK as long as something somewhere is registering a
> migration-blocker so there's a useful error message if the
> user ever tries it.
:(

Michael asked for us to fix that a while back and I forgot.

Will sort that out shortly.

J
> 
> -- PMM