diff options
| -rw-r--r-- | hw/i386/pc.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 1eb1db0372..a93972fb41 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -30,6 +30,7 @@ #include "hw/block/fdc.h" #include "hw/ide.h" #include "hw/pci/pci.h" +#include "hw/pci/pci_bus.h" #include "monitor/monitor.h" #include "hw/nvram/fw_cfg.h" #include "hw/timer/hpet.h" @@ -1119,6 +1120,25 @@ void pc_guest_info_machine_done(Notifier *notifier, void *data) PcGuestInfoState *guest_info_state = container_of(notifier, PcGuestInfoState, machine_done); + PCIBus *bus = find_i440fx(); + + if (bus) { + int extra_hosts = 0; + + QLIST_FOREACH(bus, &bus->child, sibling) { + /* look for expander root buses */ + if (pci_bus_is_root(bus)) { + extra_hosts++; + } + } + if (extra_hosts && guest_info_state->info.fw_cfg) { + uint64_t *val = g_malloc(sizeof(*val)); + *val = cpu_to_le64(extra_hosts); + fw_cfg_add_file(guest_info_state->info.fw_cfg, + "etc/extra-pci-roots", val, sizeof(*val)); + } + } + acpi_setup(&guest_info_state->info); } |