From: David Hildenbrand <d...@linux.vnet.ibm.com>

This patch adds a way to check if the SIE with zArchitecture support is
available.

Acked-by: Martin Schwidefsky <schwidef...@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.h...@de.ibm.com>
Signed-off-by: David Hildenbrand <d...@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com>
---
 arch/s390/include/asm/sclp.h   | 6 +++++-
 drivers/s390/char/sclp_early.c | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 8324abb..dea883f 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -29,7 +29,10 @@ struct sclp_ipl_info {
 
 struct sclp_core_entry {
        u8 core_id;
-       u8 reserved0[2];
+       u8 reserved0;
+       u8 : 4;
+       u8 sief2 : 1;
+       u8 : 3;
        u8 : 3;
        u8 siif : 1;
        u8 sigpif : 1;
@@ -55,6 +58,7 @@ struct sclp_info {
        unsigned char has_sprp : 1;
        unsigned char has_hvs : 1;
        unsigned char has_esca : 1;
+       unsigned char has_sief2 : 1;
        unsigned int ibc;
        unsigned int mtid;
        unsigned int mtid_cp;
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index ff1e1bb..e0a1f4e 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -136,6 +136,7 @@ static void __init sclp_facilities_detect(struct 
read_info_sccb *sccb)
                        continue;
                sclp.has_siif = cpue->siif;
                sclp.has_sigpif = cpue->sigpif;
+               sclp.has_sief2 = cpue->sief2;
                break;
        }
 
-- 
2.3.0

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