Some SysBusDevices either use sysbus_init_mmio() without sysbus_mmio_map() or the first MMIO memory region doesn't represent the bus address, causing an invalid firmware device path to be generated.
SysBusDeviceClass does provide a virtual explicit_ofw_unit_address() method that can be used to override this process, but it is only considered as a fallback option meaning that any existing MMIO memory regions still take priority whilst determining the firmware device address. As any class defining explicit_ofw_unit_address() has explicitly requested a specialised behaviour then it should be used in preference to the default implementation rather than being used as a fallback. Signed-off-by: Mark Cave-Ayland <[email protected]> --- hw/core/sysbus.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c index ecfb0cfc0e..1ee0c162f4 100644 --- a/hw/core/sysbus.c +++ b/hw/core/sysbus.c @@ -293,16 +293,8 @@ static char *sysbus_get_fw_dev_path(DeviceState *dev) { SysBusDevice *s = SYS_BUS_DEVICE(dev); SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(s); - /* for the explicit unit address fallback case: */ char *addr, *fw_dev_path; - if (s->num_mmio) { - return g_strdup_printf("%s@" TARGET_FMT_plx, qdev_fw_name(dev), - s->mmio[0].addr); - } - if (s->num_pio) { - return g_strdup_printf("%s@i%04x", qdev_fw_name(dev), s->pio[0]); - } if (sbc->explicit_ofw_unit_address) { addr = sbc->explicit_ofw_unit_address(s); if (addr) { @@ -311,6 +303,13 @@ static char *sysbus_get_fw_dev_path(DeviceState *dev) return fw_dev_path; } } + if (s->num_mmio) { + return g_strdup_printf("%s@" TARGET_FMT_plx, qdev_fw_name(dev), + s->mmio[0].addr); + } + if (s->num_pio) { + return g_strdup_printf("%s@i%04x", qdev_fw_name(dev), s->pio[0]); + } return g_strdup(qdev_fw_name(dev)); } -- 2.11.0
