Re: [RFC] xen/x86: allow overlaps with non-RAM regions

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Mon, May 12, 2025 at 10:55:18AM -0700, Lira, Victor M wrote:
> On 5/12/2025 9:16 AM, Roger Pau Monné wrote:
> > Caution: This message originated from an External Source. Use proper 
> > caution when opening attachments, clicking links, or responding.
> > 
> > 
> > On Fri, Apr 25, 2025 at 09:47:57AM -0700, Lira, Victor M wrote:
> > > I can confirm with the patch the NVME drive can be accessed despite the 
> > > "not
> > > mapping BAR" warning from Xen.
> > > Output log attached.
> > Thanks a lot for the test, and sorry for the delay in getting back.  I
> > was busy with other stuff and needed some time to figure out the best
> > way to deal with this.  Can you give a try to the patch below?  I hope
> > it will still fix the issue.
> No worries,  I applied this patch to the latest staging c45e57f59d69, and
> the result is also successful NVME drive access.
> Output log attached and I see no "failed to sanitize" warnings.

Thanks for the testing.

I've formally submitted this as:

https://lore.kernel.org/xen-devel/20250515084123.43289-1-roger.pau@xxxxxxxxxx/

Functionality wise I think it should be the same as the last patch you
tried.  Could you give it a spin and maybe provide a Tested-by if
suitable?

Thanks, Roger.