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Re: [PATCH v2 2/2] xen/swiotlb: fix allocated size

To: Jan Beulich <jbeulich@xxxxxxxx>
From: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Date: Mon, 16 Sep 2024 13:11:10 -0700 (PDT)
Cc: Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxx
Delivery-date: Mon, 16 Sep 2024 20:11:24 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Mon, 16 Sep 2024, Jan Beulich wrote:
> On 16.09.2024 08:47, Juergen Gross wrote:
> > The allocated size in xen_swiotlb_alloc_coherent() and
> > xen_swiotlb_free_coherent() is calculated wrong for the case of
> > XEN_PAGE_SIZE not matching PAGE_SIZE. Fix that.
> > 
> > Fixes: 7250f422da04 ("xen-swiotlb: use actually allocated size on check 
> > physical continuous")
> > Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> 
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

References:
- [PATCH v2 0/2] xen/swiotlb: fix 2 issues in xen-swiotlb
  - From: Juergen Gross
- [PATCH v2 2/2] xen/swiotlb: fix allocated size
  - From: Juergen Gross
- Re: [PATCH v2 2/2] xen/swiotlb: fix allocated size
  - From: Jan Beulich

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