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Commit b9e28897 authored by David Hildenbrand's avatar David Hildenbrand Committed by Christian Borntraeger
Browse files

s390/sclp: detect guest-PER enhancement 



Let's detect that facility, so we can correctly handle its abscence.

Reviewed-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Acked-by: default avatarMartin Schwidefsky <schwidefsky@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 76a6dd72

arch/s390/include/asm/sclp.h

+3 −1
Original line number Diff line number Diff line
@@ -33,7 +33,8 @@ struct sclp_core_entry { 
	u8 : 4;

	u8 sief2 : 1;

	u8 : 3;

	u8 : 3;

	u8 : 2;

	u8 gpere : 1;

	u8 siif : 1;

	u8 sigpif : 1;

	u8 : 3;
@@ -60,6 +61,7 @@ struct sclp_info { 
	unsigned char has_esca : 1;

	unsigned char has_sief2 : 1;

	unsigned char has_64bscao : 1;

	unsigned char has_gpere : 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
@@ -146,6 +146,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb) 
		sclp.has_siif = cpue->siif;

		sclp.has_sigpif = cpue->sigpif;

		sclp.has_sief2 = cpue->sief2;

		sclp.has_gpere = cpue->gpere;

		break;

	}