Make virtio(4) less restrictive on the type of BAR it supports for

legacy versions.  The current version of Parallels on M1 seems to
not provide the I/O BAR that we expect, and reducing our expectations
seems to be help.

ok kettenis@

diff --git a/sys/dev/pci/virtio_pci.c b/sys/dev/pci/virtio_pci.c
index c99f501..c3b1f22 100644 (file)
--- a/sys/dev/pci/virtio_pci.c
+++ b/sys/dev/pci/virtio_pci.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: virtio_pci.c,v 1.29 2021/06/12 13:08:30 kettenis Exp $        */
+/*     $OpenBSD: virtio_pci.c,v 1.30 2021/09/03 14:04:35 patrick Exp $ */
 /*     $NetBSD: virtio.c,v 1.3 2011/11/02 23:05:52 njoly Exp $ */
 
 /*
@@ -508,7 +508,10 @@ int
 virtio_pci_attach_09(struct virtio_pci_softc *sc, struct pci_attach_args *pa)
 {
        struct virtio_softc *vsc = &sc->sc_sc;
-       if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
+       pcireg_t type;
+
+       type = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START);
+       if (pci_mapreg_map(pa, PCI_MAPREG_START, type, 0,
            &sc->sc_iot, &sc->sc_ioh, NULL, &sc->sc_iosize, 0)) {
                printf("%s: can't map i/o space\n", vsc->sc_dev.dv_xname);
                return EIO;