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Commit 1c0f6825 authored by Zenghui Yu's avatar Zenghui Yu Committed by Alex Williamson
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vfio/pci: Don't regenerate vconfig for all BARs if !bardirty



Now we regenerate vconfig for all the BARs via vfio_bar_fixup(), every
time any offset of any of them are read.  Though BARs aren't re-read
regularly, the regeneration can be avoided if no BARs had been written
since they were last read, in which case vdev->bardirty is false.

Let's return immediately in vfio_bar_fixup() if bardirty is false.

Suggested-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarZenghui Yu <yuzenghui@huawei.com>
Reviewed-by: default avatarCornelia Huck <cohuck@redhat.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent ba4f184e
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