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author | Gonglei <arei.gonglei@huawei.com> | 2014-12-03 16:49:46 +0000 |
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committer | root <root@ceth6.(none)> | 2014-12-22 14:39:20 +0800 |
commit | 9816833d3b8ec9adfb63b6a53f1b56f5304f4c40 (patch) | |
tree | a5026e89d84919df7daadc371b2694e105dd2845 /bootdevice.c | |
parent | 328b3b6c44c17d94df115ed1851f54a0bd59a471 (diff) | |
download | qemu-9816833d3b8ec9adfb63b6a53f1b56f5304f4c40.zip qemu-9816833d3b8ec9adfb63b6a53f1b56f5304f4c40.tar.gz qemu-9816833d3b8ec9adfb63b6a53f1b56f5304f4c40.tar.bz2 |
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.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/bootdevice.c b/bootdevice.c index b29970c..aae4cac 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) { |