The PXB device exposes a new pci root bridge with the
fw path: /pci-root@4/..., in which 4 is the root bus number.
Before this patch the fw path was wrongly computed:
/pci-root@1/pci@i0cf8/...
Fix the above issues: Correct the bus number and remove the
extra host bridge description.
Signed-off-by: Marcel Apfelbaum <mar...@redhat.com>
---
Laszlo worked on supporting pxb for OVMF and discovered
that there is a problem when booting devices from a PXB.
This is a link to the latest QEMU series:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg302493.html
Thanks,
Marcel
src/boot.c | 1 -
src/hw/pci.c | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/boot.c b/src/boot.c
index ec59c37..a3bb13b 100644
--- a/src/boot.c
+++ b/src/boot.c
@@ -114,7 +114,6 @@ build_pci_path(char *buf, int max, const char *devname,
struct pci_device *pci)
} else {
if (pci->rootbus)
p += snprintf(p, max, "/pci-root@%x", pci->rootbus);
- p += snprintf(p, buf+max-p, "%s", FW_PCI_DOMAIN);
}
int dev = pci_bdf_to_dev(pci->bdf), fn = pci_bdf_to_fn(pci->bdf);
diff --git a/src/hw/pci.c b/src/hw/pci.c
index 0379b55..9e77af4 100644
--- a/src/hw/pci.c
+++ b/src/hw/pci.c
@@ -133,7 +133,7 @@ pci_probe_devices(void)
if (bus != lastbus)
rootbuses++;
lastbus = bus;
- rootbus = rootbuses;
+ rootbus = bus;
if (bus > MaxPCIBus)
MaxPCIBus = bus;
} else {
--
2.1.0
