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s390/sclp: Detect ASTFLEIE 2 facility

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Detect alternate STFLE interpretive execution facility 2.

Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Signed-off-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260612-vsie-alter-stfle-fac-v4-2-74f0e1559929@linux.ibm.com>
This commit is contained in:
Nina Schoetterl-Glausch 2026-06-12 14:23:02 +02:00 committed by Claudio Imbrenda
parent 20dcfaf2d3
commit a8ceca7d8c
2 changed files with 4 additions and 1 deletions
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1
arch/s390/include/asm/sclp.h
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@ -104,6 +104,7 @@ struct sclp_info {
unsigned char has_aisii : 1;
unsigned char has_aeni : 1;
unsigned char has_aisi : 1;
unsigned char has_astfleie2 : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;

4
drivers/s390/char/sclp_early.c
View File

@ -61,8 +61,10 @@ static void __init sclp_early_facilities_detect(void)
sclp.has_sipl = !!(sccb->cbl & 0x4000);
sclp.has_sipl_eckd = !!(sccb->cbl & 0x2000);
}
if (sccb->cpuoff > 139)
if (sccb->cpuoff > 139) {
sclp.has_diag324 = !!(sccb->byte_139 & 0x80);
sclp.has_astfleie2 = !!(sccb->byte_139 & 0x40);
}
sclp.rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
sclp.rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
sclp.rzm <<= 20;