The fw paths for USB devices that SeaBIOS computes are off-by-one, because QEMU builds those paths with a numbering that starts from one (see usb_fill_port and usb_hub_initfn in QEMU). Fix that so that the numbering agrees. --- src/boot.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/boot.c b/src/boot.c index 946850d..434bf80 100644 --- a/src/boot.c +++ b/src/boot.c @@ -205,9 +205,9 @@ int bootprio_find_usb(struct pci_device *pci, u64 path) for (i=56; i>0; i-=8) { int port = (path >> i) & 0xff; if (port != 0xff) - p += snprintf(p, desc+sizeof(desc)-p, "/hub@%x", port); + p += snprintf(p, desc+sizeof(desc)-p, "/hub@%x", port+1); } - snprintf(p, desc+sizeof(desc)-p, "/*@%x", (u32)(path & 0xff)); + snprintf(p, desc+sizeof(desc)-p, "/*@%x", (u32)(path & 0xff)+1); return find_prio(desc); }