From: Michael Mueller <mimu@linux.ibm.com>
To: KVM Mailing List <kvm@vger.kernel.org>
Cc: Linux-S390 Mailing List <linux-s390@vger.kernel.org>,
linux-kernel@vger.kernel.org,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
David Hildenbrand <david@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Halil Pasic <pasic@linux.ibm.com>,
Pierre Morel <pmorel@linux.ibm.com>,
Michael Mueller <mimu@linux.ibm.com>
Subject: [PATCH v6 08/13] s390/cio: add function chsc_sgib()
Date: Thu, 24 Jan 2019 13:59:34 +0100 [thread overview]
Message-ID: <20190124125939.130763-9-mimu@linux.ibm.com> (raw)
In-Reply-To: <20190124125939.130763-1-mimu@linux.ibm.com>
This patch implements the Set Guest Information Block operation
to request association or disassociation of a Guest Information
Block (GIB) with the Adapter Interruption Facility. The operation
is required to receive GIB alert interrupts for guest adapters
in conjunction with AIV and GISA.
Signed-off-by: Michael Mueller <mimu@linux.ibm.com>
Reviewed-by: Sebastian Ott <sebott@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
---
arch/s390/include/asm/cio.h | 1 +
drivers/s390/cio/chsc.c | 37 +++++++++++++++++++++++++++++++++++++
drivers/s390/cio/chsc.h | 1 +
3 files changed, 39 insertions(+)
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 225667652069..1727180e8ca1 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -331,5 +331,6 @@ extern void css_schedule_reprobe(void);
/* Function from drivers/s390/cio/chsc.c */
int chsc_sstpc(void *page, unsigned int op, u16 ctrl, u64 *clock_delta);
int chsc_sstpi(void *page, void *result, size_t size);
+int chsc_sgib(u32 origin);
#endif
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index a0baee25134c..4159c63a5fd2 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -1382,3 +1382,40 @@ int chsc_pnso_brinfo(struct subchannel_id schid,
return chsc_error_from_response(brinfo_area->response.code);
}
EXPORT_SYMBOL_GPL(chsc_pnso_brinfo);
+
+int chsc_sgib(u32 origin)
+{
+ struct {
+ struct chsc_header request;
+ u16 op;
+ u8 reserved01[2];
+ u8 reserved02:4;
+ u8 fmt:4;
+ u8 reserved03[7];
+ /* operation data area begin */
+ u8 reserved04[4];
+ u32 gib_origin;
+ u8 reserved05[10];
+ u8 aix;
+ u8 reserved06[4029];
+ struct chsc_header response;
+ u8 reserved07[4];
+ } *sgib_area;
+ int ret;
+
+ spin_lock_irq(&chsc_page_lock);
+ memset(chsc_page, 0, PAGE_SIZE);
+ sgib_area = chsc_page;
+ sgib_area->request.length = 0x0fe0;
+ sgib_area->request.code = 0x0021;
+ sgib_area->op = 0x1;
+ sgib_area->gib_origin = origin;
+
+ ret = chsc(sgib_area);
+ if (ret == 0)
+ ret = chsc_error_from_response(sgib_area->response.code);
+ spin_unlock_irq(&chsc_page_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(chsc_sgib);
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 78aba8d94eec..e57d68e325a3 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -164,6 +164,7 @@ int chsc_get_channel_measurement_chars(struct channel_path *chp);
int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd);
int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc,
u64 summary_indicator_addr, u64 subchannel_indicator_addr);
+int chsc_sgib(u32 origin);
int chsc_error_from_response(int response);
int chsc_siosl(struct subchannel_id schid);
--
2.13.4
next prev parent reply other threads:[~2019-01-24 13:01 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-24 12:59 [PATCH v6 00/13] KVM: s390: make use of the GIB Michael Mueller
2019-01-24 12:59 ` [PATCH v6 01/13] KVM: s390: drop obsolete else path Michael Mueller
2019-01-24 14:39 ` Cornelia Huck
2019-01-28 13:57 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 02/13] KVM: s390: make bitmap declaration consitent Michael Mueller
2019-01-24 14:11 ` Cornelia Huck
2019-01-28 13:58 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 03/13] KVM: s390: move bitmap idle_mask into arch struct top level Michael Mueller
2019-01-28 15:30 ` Pierre Morel
2019-01-29 13:56 ` Cornelia Huck
2019-01-24 12:59 ` [PATCH v6 04/13] KVM: s390: coding style kvm_s390_gisa_init/clear() Michael Mueller
2019-01-28 14:43 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 05/13] KVM: s390: use pending_irqs_no_gisa() where appropriate Michael Mueller
2019-01-28 15:54 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 06/13] KVM: s390: remove kvm_s390_ from gisa static inline functions Michael Mueller
2019-01-24 14:26 ` Cornelia Huck
2019-01-25 14:22 ` Pierre Morel
2019-01-28 15:04 ` Halil Pasic
2019-01-28 15:55 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 07/13] KVM: s390: introduce struct kvm_s390_gisa_interrupt Michael Mueller
2019-01-24 15:06 ` Cornelia Huck
2019-01-24 15:24 ` Michael Mueller
2019-01-28 16:50 ` Halil Pasic
2019-01-29 13:22 ` Cornelia Huck
2019-01-29 15:47 ` Michael Mueller
2019-01-29 16:07 ` Halil Pasic
2019-01-24 12:59 ` Michael Mueller [this message]
2019-01-24 12:59 ` [PATCH v6 09/13] KVM: s390: add the GIB and its related life-cyle functions Michael Mueller
2019-01-28 16:59 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 10/13] KVM: s390: add kvm reference to struct sie_page2 Michael Mueller
2019-01-29 12:27 ` Halil Pasic
2019-01-24 12:59 ` [PATCH v6 11/13] KVM: s390: add functions to (un)register GISC with GISA Michael Mueller
2019-01-28 15:45 ` Pierre Morel
2019-01-28 16:04 ` Michael Mueller
2019-01-28 18:12 ` Halil Pasic
2019-01-29 13:09 ` Cornelia Huck
2019-01-29 13:32 ` Michael Mueller
2019-01-24 12:59 ` [PATCH v6 12/13] KVM: s390: add gib_alert_irq_handler() Michael Mueller
2019-01-29 13:26 ` Halil Pasic
2019-01-29 15:29 ` Michael Mueller
2019-01-29 16:45 ` Halil Pasic
2019-01-30 16:24 ` Pierre Morel
2019-01-30 16:41 ` Michael Mueller
2019-01-24 12:59 ` [PATCH v6 13/13] KVM: s390: start using the GIB Michael Mueller
2019-01-29 13:27 ` Halil Pasic
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