diff options
| author | Collin L. Walling <walling@linux.vnet.ibm.com> | 2018-02-23 10:43:14 -0500 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2018-02-26 07:56:55 +0100 |
| commit | ba831b25262aa3d0c6d5eb0cd530487d3cb05493 (patch) | |
| tree | 2737b286198feb8d58569424fdcae2e699b2b1a3 /pc-bios/s390-ccw/menu.c | |
| parent | 9eaa654ab327b54901f398440258be766c327953 (diff) | |
s390-ccw: read stage2 boot loader data to find menu
Read the stage2 boot loader data block-by-block. We scan the
current block for the string "zIPL" to detect the start of the
boot menu banner. We then load the adjacent blocks (previous
block and next block) to account for the possibility of menu
data spanning multiple blocks.
Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'pc-bios/s390-ccw/menu.c')
| -rw-r--r-- | pc-bios/s390-ccw/menu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pc-bios/s390-ccw/menu.c b/pc-bios/s390-ccw/menu.c index 1ce33ddf3d..c1d242fed1 100644 --- a/pc-bios/s390-ccw/menu.c +++ b/pc-bios/s390-ccw/menu.c @@ -15,8 +15,18 @@ static uint8_t flag; static uint64_t timeout; +int menu_get_zipl_boot_index(const char *menu_data) +{ + return 0; /* implemented next patch */ +} + void menu_set_parms(uint8_t boot_menu_flag, uint32_t boot_menu_timeout) { flag = boot_menu_flag; timeout = boot_menu_timeout; } + +bool menu_is_enabled_zipl(void) +{ + return flag & QIPL_FLAG_BM_OPTS_CMD; +} |