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-rw-r--r--arch/s390/include/asm/sclp.h2
-rw-r--r--arch/s390/kernel/ipl.c17
-rw-r--r--drivers/s390/char/sclp.h4
-rw-r--r--drivers/s390/char/sclp_early.c2
4 files changed, 24 insertions, 1 deletions
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index ef4c9dec06a4..ef5d8fa92122 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -79,6 +79,8 @@ struct sclp_info {
unsigned char has_kss : 1;
unsigned char has_gisaf : 1;
unsigned char has_diag318 : 1;
+ unsigned char has_sipl : 1;
+ unsigned char has_sipl_g2 : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 6f2bb64cf70e..e123c0df83f1 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -283,6 +283,20 @@ static ssize_t ipl_secure_show(struct kobject *kobj,
static struct kobj_attribute sys_ipl_secure_attr =
__ATTR(secure, 0444, ipl_secure_show, NULL);
+static ssize_t ipl_has_secure_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *page)
+{
+ if (MACHINE_IS_LPAR)
+ return sprintf(page, "%i\n", !!sclp.has_sipl);
+ else if (MACHINE_IS_VM)
+ return sprintf(page, "%i\n", !!sclp.has_sipl_g2);
+ else
+ return sprintf(page, "%i\n", 0);
+}
+
+static struct kobj_attribute sys_ipl_has_secure_attr =
+ __ATTR(has_secure, 0444, ipl_has_secure_show, NULL);
+
static ssize_t ipl_vm_parm_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
@@ -379,6 +393,7 @@ static struct attribute *ipl_fcp_attrs[] = {
&sys_ipl_fcp_br_lba_attr.attr,
&sys_ipl_ccw_loadparm_attr.attr,
&sys_ipl_secure_attr.attr,
+ &sys_ipl_has_secure_attr.attr,
NULL,
};
@@ -395,6 +410,7 @@ static struct attribute *ipl_ccw_attrs_vm[] = {
&sys_ipl_ccw_loadparm_attr.attr,
&sys_ipl_vm_parm_attr.attr,
&sys_ipl_secure_attr.attr,
+ &sys_ipl_has_secure_attr.attr,
NULL,
};
@@ -403,6 +419,7 @@ static struct attribute *ipl_ccw_attrs_lpar[] = {
&sys_ipl_device_attr.attr,
&sys_ipl_ccw_loadparm_attr.attr,
&sys_ipl_secure_attr.attr,
+ &sys_ipl_has_secure_attr.attr,
NULL,
};
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 367e9d384d85..287382dc21c5 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -197,7 +197,9 @@ struct read_info_sccb {
u32 hmfai; /* 124-127 */
u8 _pad_128[134 - 128]; /* 128-133 */
u8 byte_134; /* 134 */
- u8 _pad_135[4096 - 135]; /* 135-4095 */
+ u8 _pad_135; /* 135 */
+ u16 cbl; /* 136-137 */
+ u8 _pad_138[4096 - 138]; /* 138-4095 */
} __packed __aligned(PAGE_SIZE);
struct read_storage_sccb {
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)