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vfio/pci: Remove PCIe Link Status emulation 

Now that the downstream port will virtually negotiate itself to the
link status of the downstream device, we can remove this emulation.
It's not clear that it was every terribly useful anyway.

Tested-by: Geoffrey McRae <geoff@hostfission.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
master
Alex Williamson 2018-12-12 12:39:56 -07:00 committed by Michael S. Tsirkin
parent c2a490e344
commit d26e543891
1 changed files with 0 additions and 6 deletions
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6
hw/vfio/pci.c
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@ -1901,12 +1901,6 @@ static int vfio_setup_pcie_cap(VFIOPCIDevice *vdev, int pos, uint8_t size,
QEMU_PCI_EXP_LNKCAP_MLS(QEMU_PCI_EXP_LNK_2_5GT), ~0);
vfio_add_emulated_word(vdev, pos + PCI_EXP_LNKCTL, 0, ~0);
}
/* Mark the Link Status bits as emulated to allow virtual negotiation */
vfio_add_emulated_word(vdev, pos + PCI_EXP_LNKSTA,
pci_get_word(vdev->pdev.config + pos +
PCI_EXP_LNKSTA),
PCI_EXP_LNKCAP_MLW | PCI_EXP_LNKCAP_SLS);
}
/*