diff options
Diffstat (limited to 'hw/i386/multiboot.c')
| -rw-r--r-- | hw/i386/multiboot.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/hw/i386/multiboot.c b/hw/i386/multiboot.c index f86d351b3e..1adbe9e25f 100644 --- a/hw/i386/multiboot.c +++ b/hw/i386/multiboot.c @@ -156,6 +156,7 @@ int load_multiboot(FWCfgState *fw_cfg, MultibootState mbs; uint8_t bootinfo[MBI_SIZE]; uint8_t *mb_bootinfo_data; + uint32_t cmdline_len; /* Ok, let's see if it is a multiboot image. The header is 12x32bit long, so the latest entry may be 8192 - 48. */ @@ -258,27 +259,28 @@ int load_multiboot(FWCfgState *fw_cfg, mbs.offset_mbinfo = mbs.mb_buf_size; /* Calculate space for cmdlines, bootloader name, and mb_mods */ - mbs.mb_buf_size += strlen(kernel_filename) + 1; - mbs.mb_buf_size += strlen(kernel_cmdline) + 1; - mbs.mb_buf_size += strlen(bootloader_name) + 1; + cmdline_len = strlen(kernel_filename) + 1; + cmdline_len += strlen(kernel_cmdline) + 1; if (initrd_filename) { const char *r = initrd_filename; - mbs.mb_buf_size += strlen(r) + 1; + cmdline_len += strlen(r) + 1; mbs.mb_mods_avail = 1; while (*(r = get_opt_value(NULL, 0, r))) { mbs.mb_mods_avail++; r++; } - mbs.mb_buf_size += MB_MOD_SIZE * mbs.mb_mods_avail; } + mbs.mb_buf_size += cmdline_len; + mbs.mb_buf_size += MB_MOD_SIZE * mbs.mb_mods_avail; + mbs.mb_buf_size += strlen(bootloader_name) + 1; + mbs.mb_buf_size = TARGET_PAGE_ALIGN(mbs.mb_buf_size); /* enlarge mb_buf to hold cmdlines, bootloader, mb-info structs */ mbs.mb_buf = g_realloc(mbs.mb_buf, mbs.mb_buf_size); mbs.offset_cmdlines = mbs.offset_mbinfo + mbs.mb_mods_avail * MB_MOD_SIZE; - mbs.offset_bootloader = mbs.offset_cmdlines + strlen(kernel_filename) + 1 - + strlen(kernel_cmdline) + 1; + mbs.offset_bootloader = mbs.offset_cmdlines + cmdline_len; if (initrd_filename) { char *next_initrd, not_last; |