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s390x/pci: only limit DMA aperture if vfio DMA limit reported
If the host kernel lacks vfio DMA limit reporting, do not attempt to shrink the guest DMA aperture. Fixes: df202e3 ("s390x/pci: shrink DMA aperture to be bound by vfio DMA limit") Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Message-ID: <20231110175108.465851-3-mjrosato@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
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