[SeaBIOS] [PATCH 17/18] virtio: use version 1.0 if available (flip the big switch)
Gerd Hoffmann
kraxel at redhat.com
Mon Jun 29 10:53:39 CEST 2015
Signed-off-by: Gerd Hoffmann <kraxel at redhat.com>
---
src/hw/virtio-pci.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/src/hw/virtio-pci.c b/src/hw/virtio-pci.c
index c80d38d..808e102 100644
--- a/src/hw/virtio-pci.c
+++ b/src/hw/virtio-pci.c
@@ -287,13 +287,16 @@ struct vp_device *vp_init_simple(struct pci_device *pci)
}
if (vp->common.cap && vp->notify.cap && vp->isr.cap && vp->device.cap) {
- dprintf(1, "pci dev %x:%x supports virtio 1.0\n",
+ dprintf(1, "pci dev %x:%x using virtio 1.0 mode\n",
pci_bdf_to_bus(pci->bdf), pci_bdf_to_dev(pci->bdf));
+ vp->use_modern = 1;
+ } else {
+ dprintf(1, "pci dev %x:%x using legacy virtio mode\n",
+ pci_bdf_to_bus(pci->bdf), pci_bdf_to_dev(pci->bdf));
+ vp->ioaddr = pci_config_readl(pci->bdf, PCI_BASE_ADDRESS_0) &
+ PCI_BASE_ADDRESS_IO_MASK;
}
- vp->ioaddr = pci_config_readl(pci->bdf, PCI_BASE_ADDRESS_0) &
- PCI_BASE_ADDRESS_IO_MASK;
-
vp_reset(vp);
pci_config_maskw(pci->bdf, PCI_COMMAND, 0, PCI_COMMAND_MASTER);
vp_set_status(vp, VIRTIO_CONFIG_S_ACKNOWLEDGE |
--
1.8.3.1
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