Instead of manually parsing the boot_list as character stream, we can access the nth boot device, specified by the position in the boot order.
Signed-off-by: Dominik Dingel <din...@linux.vnet.ibm.com> diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 6578782..43b961c 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -181,6 +181,8 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev, const char *suffix); char *get_boot_devices_list(size_t *size); +DeviceState *get_boot_device(uint32_t position); + bool usb_enabled(bool default_usb); extern QemuOptsList qemu_drive_opts; diff --git a/vl.c b/vl.c index 84d7031..429e6ea 100644 --- a/vl.c +++ b/vl.c @@ -1247,6 +1247,24 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev, QTAILQ_INSERT_TAIL(&fw_boot_order, node, link); } +DeviceState *get_boot_device(uint32_t position) +{ + uint32_t counter = 0; + FWBootEntry *i = NULL; + DeviceState *res = NULL; + + if (!QTAILQ_EMPTY(&fw_boot_order)) { + QTAILQ_FOREACH(i, &fw_boot_order, link) { + if (counter == position) { + res = i->dev; + break; + } + counter++; + } + } + return res; +} + /* * This function returns null terminated string that consist of new line * separated device paths. -- 1.7.9.5