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Thu, 26 Feb 2026 12:49:32 +0000 (GMT) From: Christoph Schlameuss Date: Thu, 26 Feb 2026 13:49:05 +0100 Subject: [PATCH v2 2/4] s390/sclp: Detect ASTFLEIE 2 facility Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260226-vsie-alter-stfle-fac-v2-2-914974cb922c@linux.ibm.com> References: <20260226-vsie-alter-stfle-fac-v2-0-914974cb922c@linux.ibm.com> In-Reply-To: <20260226-vsie-alter-stfle-fac-v2-0-914974cb922c@linux.ibm.com> To: linux-s390@vger.kernel.org Cc: David Hildenbrand , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Sven Schnelle , Hendrik Brueckner , Nina Schoetterl-Glausch , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Schlameuss X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1652; i=schlameuss@linux.ibm.com; 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Signed-off-by: Nina Schoetterl-Glausch Signed-off-by: Christoph Schlameuss Reviewed-by: Janosch Frank Reviewed-by: Hendrik Brueckner --- arch/s390/include/asm/sclp.h | 1 + drivers/s390/char/sclp_early.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 0f184dbdbe5e0748fcecbca38b9e55a56968dc79..0f21501d3e866338895caeed385= aa4f586384d69 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -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; diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c index 6bf501ad8ff0ea6d3df0a721f29fd24506409493..22dd797e62291fef087d46ac1c7= f805486e3935b 100644 --- a/drivers/s390/char/sclp_early.c +++ b/drivers/s390/char/sclp_early.c @@ -61,8 +61,10 @@ static void __init sclp_early_facilities_detect(void) sclp.has_sipl =3D !!(sccb->cbl & 0x4000); sclp.has_sipl_eckd =3D !!(sccb->cbl & 0x2000); } - if (sccb->cpuoff > 139) + if (sccb->cpuoff > 139) { sclp.has_diag324 =3D !!(sccb->byte_139 & 0x80); + sclp.has_astfleie2 =3D !!(sccb->byte_139 & 0x40); + } sclp.rnmax =3D sccb->rnmax ? sccb->rnmax : sccb->rnmax2; sclp.rzm =3D sccb->rnsize ? sccb->rnsize : sccb->rnsize2; sclp.rzm <<=3D 20; --=20 2.53.0