Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 72cd82b9 authored by David Hildenbrand's avatar David Hildenbrand Committed by Christian Borntraeger
Browse files

s390/sclp: detect intervention bypass facility 



Let's detect if we have the intervention bypass facility installed.

Reviewed-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent efed1104

arch/s390/include/asm/sclp.h

+6 −1
Original line number Diff line number Diff line
@@ -38,7 +38,11 @@ struct sclp_core_entry { 
	u8 siif : 1;

	u8 sigpif : 1;

	u8 : 3;

	u8 reserved2[10];

	u8 reserved2[3];

	u8 : 2;

	u8 ib : 1;

	u8 : 5;

	u8 reserved3[6];

	u8 type;

	u8 reserved1;

} __attribute__((packed));
@@ -64,6 +68,7 @@ struct sclp_info { 
	unsigned char has_gpere : 1;

	unsigned char has_cmma : 1;

	unsigned char has_gsls : 1;

	unsigned char has_ib : 1;

	unsigned int ibc;

	unsigned int mtid;

	unsigned int mtid_cp;

drivers/s390/char/sclp_early.c

+1 −0
Original line number Diff line number Diff line
@@ -149,6 +149,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb) 
		sclp.has_sigpif = cpue->sigpif;

		sclp.has_sief2 = cpue->sief2;

		sclp.has_gpere = cpue->gpere;

		sclp.has_ib = cpue->ib;

		break;

	}