| Message ID | 20171218050234.13478.35203.stgit@gimli.home |
|---|---|
| State | New |
| Headers | show |
| Series | vfio/pci: MSI-X MMIO relocation | expand |
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 8f46fdd1d391..c383b842da20 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2773,6 +2773,8 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) /* QEMU can choose to expose the ROM or not */ memset(vdev->emulated_config_bits + PCI_ROM_ADDRESS, 0xff, 4); + /* QEMU can also add or extend BARs */ + memset(vdev->emulated_config_bits + PCI_BASE_ADDRESS_0, 0xff, 6 * 4); /* * The PCI spec reserves vendor ID 0xffff as an invalid value. The
The kernel provides similar emulation of PCI BAR register access to QEMU, so up until now we've used that for things like BAR sizing and storing the BAR address. However, if we intend to resize BARs or add BARs that don't exist on the physical device, we need to switch to the pure QEMU emulation of the BAR. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> --- hw/vfio/pci.c | 2 ++ 1 file changed, 2 insertions(+)