From 694fb857abd770db623b6df5475291797b86187c Mon Sep 17 00:00:00 2001
From: Gonglei <arei.gonglei@huawei.com>
Date: Tue, 7 Oct 2014 16:00:06 +0800
Subject: [PATCH] bootindex: add check bootindex function
Determine whether a given bootindex exists or not.
If exists, we report an error.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
bootdevice.c | 15 +++++++++++++++
include/sysemu/sysemu.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/bootdevice.c b/bootdevice.c
index d5b8789994..f5399df4b7 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -36,6 +36,21 @@ struct FWBootEntry {
static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
QTAILQ_HEAD_INITIALIZER(fw_boot_order);
+void check_boot_index(int32_t bootindex, Error **errp)
+{
+ FWBootEntry *i;
+
+ if (bootindex >= 0) {
+ QTAILQ_FOREACH(i, &fw_boot_order, link) {
+ if (i->bootindex == bootindex) {
+ error_setg(errp, "The bootindex %d has already been used",
+ bootindex);
+ return;
+ }
+ }
+ }
+}
+
void add_boot_device_path(int32_t bootindex, DeviceState *dev,
const char *suffix)
{
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 8de5100272..72463de56c 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -213,6 +213,7 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev,
char *get_boot_devices_list(size_t *size, bool ignore_suffixes);
DeviceState *get_boot_device(uint32_t position);
+void check_boot_index(int32_t bootindex, Error **errp);
QemuOpts *qemu_get_machine_opts(void);
--
2.30.2