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| author | Philipp Rudo <prudo@linux.ibm.com> | 2019-04-08 14:24:08 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-29 10:44:04 +0200 |
| commit | c9896acc7851109d4e84c1e3a54cb1b9794dea6b (patch) | |
| tree | e258e2c33f0f5def2a7ae88f991a175235406fa1 /drivers/s390/char/sclp_early.c | |
| parent | s390/kexec_file: Disable kexec_load when IPLed secure (diff) | |
| download | linux-c9896acc7851109d4e84c1e3a54cb1b9794dea6b.tar.xz linux-c9896acc7851109d4e84c1e3a54cb1b9794dea6b.zip | |
s390/ipl: Provide has_secure sysfs attribute
Provide an interface for userspace so it can find out if a machine is
capeable of doing secure boot. The interface is, for example, needed for
zipl so it can find out which file format it can/should write to disk.
Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char/sclp_early.c')
| -rw-r--r-- | drivers/s390/char/sclp_early.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c index 8332788681c4..dae9de3d7c96 100644 --- a/drivers/s390/char/sclp_early.c +++ b/drivers/s390/char/sclp_early.c @@ -40,6 +40,8 @@ static void __init sclp_early_facilities_detect(struct read_info_sccb *sccb) sclp.has_gisaf = !!(sccb->fac118 & 0x08); sclp.has_hvs = !!(sccb->fac119 & 0x80); sclp.has_kss = !!(sccb->fac98 & 0x01); + sclp.has_sipl = !!(sccb->cbl & 0x02); + sclp.has_sipl_g2 = !!(sccb->cbl & 0x04); if (sccb->fac85 & 0x02) S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP; if (sccb->fac91 & 0x40) |