From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: KVM <kvm@vger.kernel.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
linux-s390 <linux-s390@vger.kernel.org>,
Janosch Frank <frankja@linux.vnet.ibm.com>,
David Hildenbrand <david@redhat.com>,
Michael Mueller <mimu@linux.vnet.ibm.com>
Subject: [PATCH 11/12] s390/sclp: expose the GISA format facility
Date: Tue, 16 Jan 2018 21:02:16 +0100 [thread overview]
Message-ID: <20180116200217.211897-12-borntraeger@de.ibm.com> (raw)
In-Reply-To: <20180116200217.211897-1-borntraeger@de.ibm.com>
From: Michael Mueller <mimu@linux.vnet.ibm.com>
The GISA format facility is required by the host to be able to process
a format-1 GISA. If not available, the used GISA format will be format-0.
All format-1 related extension will not be available in this case.
Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
arch/s390/include/asm/sclp.h | 1 +
drivers/s390/char/sclp_early.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index d3c1a8a2e3ad..3cae9168f63c 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -77,6 +77,7 @@ struct sclp_info {
unsigned char has_ibs : 1;
unsigned char has_skey : 1;
unsigned char has_kss : 1;
+ unsigned char has_gisaf : 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 d06bc5674e5f..6b1891539c84 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -49,7 +49,7 @@ struct read_info_sccb {
u8 _pad_112[116 - 112]; /* 112-115 */
u8 fac116; /* 116 */
u8 fac117; /* 117 */
- u8 _pad_118; /* 118 */
+ u8 fac118; /* 118 */
u8 fac119; /* 119 */
u16 hcpua; /* 120-121 */
u8 _pad_122[124 - 122]; /* 122-123 */
@@ -100,6 +100,7 @@ static void __init sclp_early_facilities_detect(struct read_info_sccb *sccb)
sclp.has_esca = !!(sccb->fac116 & 0x08);
sclp.has_pfmfi = !!(sccb->fac117 & 0x40);
sclp.has_ibs = !!(sccb->fac117 & 0x20);
+ sclp.has_gisaf = !!(sccb->fac118 & 0x08);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
sclp.has_kss = !!(sccb->fac98 & 0x01);
if (sccb->fac85 & 0x02)
--
2.13.4
next prev parent reply other threads:[~2018-01-16 20:02 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-16 20:02 [PATCH 00/12] KVM: s390: exitless interrupt support for KVM Christian Borntraeger
2018-01-16 20:02 ` [PATCH 01/12] KVM: s390: reverse bit ordering of irqs in pending mask Christian Borntraeger
2018-01-16 20:18 ` David Hildenbrand
2018-01-17 10:12 ` Christian Borntraeger
2018-01-18 16:50 ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 02/12] KVM: s390: define GISA format-0 data structure Christian Borntraeger
2018-01-16 20:25 ` David Hildenbrand
2018-01-17 7:57 ` Heiko Carstens
2018-01-18 15:49 ` Michael Mueller
2018-01-18 20:47 ` David Hildenbrand
2018-01-19 10:12 ` Heiko Carstens
2018-01-19 10:17 ` David Hildenbrand
2018-01-19 10:20 ` Heiko Carstens
2018-01-19 10:29 ` Cornelia Huck
2018-01-19 11:28 ` David Hildenbrand
2018-01-16 20:02 ` [PATCH 03/12] s390/bitops: add test_and_clear_bit_inv() Christian Borntraeger
2018-01-16 20:13 ` David Hildenbrand
2018-01-18 16:54 ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 04/12] KVM: s390: implement GISA IPM related primitives Christian Borntraeger
2018-01-17 14:35 ` David Hildenbrand
2018-01-18 14:29 ` Michael Mueller
2018-01-18 14:33 ` David Hildenbrand
2018-01-18 15:58 ` Michael Mueller
2018-01-18 20:45 ` David Hildenbrand
2018-01-19 10:11 ` Heiko Carstens
2018-01-19 10:16 ` David Hildenbrand
2018-01-19 10:17 ` Christian Borntraeger
2018-01-16 20:02 ` [PATCH 05/12] s390/css: expose the AIV facility Christian Borntraeger
2018-01-17 15:19 ` David Hildenbrand
2018-01-18 12:02 ` Michael Mueller
2018-01-18 17:54 ` Cornelia Huck
2018-01-25 11:42 ` Christian Borntraeger
2018-01-25 12:00 ` Cornelia Huck
2018-01-25 12:04 ` Christian Borntraeger
2018-01-25 15:13 ` Heiko Carstens
2018-01-16 20:02 ` [PATCH 06/12] KVM: s390: exploit GISA and AIV for emulated interrupts Christian Borntraeger
2018-01-17 8:14 ` Heiko Carstens
2018-01-18 18:10 ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 07/12] KVM: s390: abstract adapter interruption word generation from ISC Christian Borntraeger
2018-01-18 18:11 ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 08/12] KVM: s390: add GISA interrupts to FLIC ioctl interface Christian Borntraeger
2018-01-16 20:02 ` [PATCH 09/12] KVM: s390: make kvm_s390_get_io_int() aware of GISA Christian Borntraeger
2018-01-16 20:02 ` [PATCH 10/12] KVM: s390: activate GISA for emulated interrupts Christian Borntraeger
2018-01-16 20:02 ` Christian Borntraeger [this message]
2018-01-16 20:13 ` [PATCH 11/12] s390/sclp: expose the GISA format facility David Hildenbrand
2018-01-16 20:02 ` [PATCH 12/12] KVM: s390: introduce the format-1 GISA Christian Borntraeger
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