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authorGonglei <arei.gonglei@huawei.com>2014-12-03 16:49:46 +0000
committerroot <root@ceth6.(none)>2014-12-22 14:39:20 +0800
commit9816833d3b8ec9adfb63b6a53f1b56f5304f4c40 (patch)
treea5026e89d84919df7daadc371b2694e105dd2845 /bootdevice.c
parent328b3b6c44c17d94df115ed1851f54a0bd59a471 (diff)
downloadqemu-arm-9816833d3b8ec9adfb63b6a53f1b56f5304f4c40.tar.gz
bootdevice: move code about bootorder from vl.c to bootdevice.c
First, we can downsize vl.c, make it simpler by little and little. Second, I can maintain those code and make some improvement. Cc: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'bootdevice.c')
-rw-r--r--bootdevice.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/bootdevice.c b/bootdevice.c
index b29970c7a3..aae4cac27f 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -25,6 +25,7 @@
#include "sysemu/sysemu.h"
#include "qapi/visitor.h"
#include "qemu/error-report.h"
+#include "hw/hw.h"
typedef struct FWBootEntry FWBootEntry;
@@ -37,6 +38,67 @@ struct FWBootEntry {
static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
QTAILQ_HEAD_INITIALIZER(fw_boot_order);
+static QEMUBootSetHandler *boot_set_handler;
+static void *boot_set_opaque;
+
+void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
+{
+ boot_set_handler = func;
+ boot_set_opaque = opaque;
+}
+
+int qemu_boot_set(const char *boot_order)
+{
+ if (!boot_set_handler) {
+ return -EINVAL;
+ }
+ return boot_set_handler(boot_set_opaque, boot_order);
+}
+
+void validate_bootdevices(const char *devices)
+{
+ /* We just do some generic consistency checks */
+ const char *p;
+ int bitmap = 0;
+
+ for (p = devices; *p != '\0'; p++) {
+ /* Allowed boot devices are:
+ * a-b: floppy disk drives
+ * c-f: IDE disk drives
+ * g-m: machine implementation dependent drives
+ * n-p: network devices
+ * It's up to each machine implementation to check if the given boot
+ * devices match the actual hardware implementation and firmware
+ * features.
+ */
+ if (*p < 'a' || *p > 'p') {
+ fprintf(stderr, "Invalid boot device '%c'\n", *p);
+ exit(1);
+ }
+ if (bitmap & (1 << (*p - 'a'))) {
+ fprintf(stderr, "Boot device '%c' was given twice\n", *p);
+ exit(1);
+ }
+ bitmap |= 1 << (*p - 'a');
+ }
+}
+
+void restore_boot_order(void *opaque)
+{
+ char *normal_boot_order = opaque;
+ static int first = 1;
+
+ /* Restore boot order and remove ourselves after the first boot */
+ if (first) {
+ first = 0;
+ return;
+ }
+
+ qemu_boot_set(normal_boot_order);
+
+ qemu_unregister_reset(restore_boot_order, normal_boot_order);
+ g_free(normal_boot_order);
+}
void check_boot_index(int32_t bootindex, Error **errp)
{