From: Matthew Rosato <mjrosato@linux.ibm.com>
To: linux-s390@vger.kernel.org
Cc: alex.williamson@redhat.com, cohuck@redhat.com,
schnelle@linux.ibm.com, farman@linux.ibm.com,
pmorel@linux.ibm.com, borntraeger@linux.ibm.com,
hca@linux.ibm.com, gor@linux.ibm.com,
gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com,
svens@linux.ibm.com, frankja@linux.ibm.com, david@redhat.com,
imbrenda@linux.ibm.com, vneethv@linux.ibm.com,
oberpar@linux.ibm.com, freude@linux.ibm.com, thuth@redhat.com,
pasic@linux.ibm.com, joro@8bytes.org, will@kernel.org,
pbonzini@redhat.com, corbet@lwn.net, jgg@nvidia.com,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
iommu@lists.linux-foundation.org, linux-doc@vger.kernel.org
Subject: [PATCH v4 11/32] s390/pci: add helper function to find device by handle
Date: Mon, 14 Mar 2022 15:44:30 -0400 [thread overview]
Message-ID: <20220314194451.58266-12-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <20220314194451.58266-1-mjrosato@linux.ibm.com>
Intercepted zPCI instructions will specify the desired function via a
function handle. Add a routine to find the device with the specified
handle.
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
arch/s390/include/asm/pci.h | 1 +
arch/s390/pci/pci.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 7ee52a70a96f..3c0b9986dcdc 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -275,6 +275,7 @@ static inline struct zpci_dev *to_zpci_dev(struct device *dev)
}
struct zpci_dev *get_zdev_by_fid(u32);
+struct zpci_dev *get_zdev_by_fh(u32 fh);
/* DMA */
int zpci_dma_init(void);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index ca9c29386de6..04c16312ad54 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -76,6 +76,22 @@ struct zpci_dev *get_zdev_by_fid(u32 fid)
return zdev;
}
+struct zpci_dev *get_zdev_by_fh(u32 fh)
+{
+ struct zpci_dev *tmp, *zdev = NULL;
+
+ spin_lock(&zpci_list_lock);
+ list_for_each_entry(tmp, &zpci_list, entry) {
+ if (tmp->fh == fh) {
+ zdev = tmp;
+ break;
+ }
+ }
+ spin_unlock(&zpci_list_lock);
+ return zdev;
+}
+EXPORT_SYMBOL_GPL(get_zdev_by_fh);
+
void zpci_remove_reserved_devices(void)
{
struct zpci_dev *tmp, *zdev;
--
2.27.0
next prev parent reply other threads:[~2022-03-14 19:47 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-14 19:44 [PATCH v4 00/32] KVM: s390: enable zPCI for interpretive execution Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 01/32] s390/sclp: detect the zPCI load/store interpretation facility Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 02/32] s390/sclp: detect the AISII facility Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 03/32] s390/sclp: detect the AENI facility Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 04/32] s390/sclp: detect the AISI facility Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 05/32] s390/airq: pass more TPI info to airq handlers Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 06/32] s390/airq: allow for airq structure that uses an input vector Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 07/32] s390/pci: externalize the SIC operation controls and routine Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 08/32] s390/pci: stash associated GISA designation Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 09/32] s390/pci: export some routines related to RPCIT processing Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 10/32] s390/pci: stash dtsm and maxstbl Matthew Rosato
2022-03-14 19:44 ` Matthew Rosato [this message]
2022-03-14 19:44 ` [PATCH v4 12/32] s390/pci: get SHM information from list pci Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 13/32] s390/pci: return status from zpci_refresh_trans Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 14/32] iommu: introduce iommu_domain_alloc_type and the KVM type Matthew Rosato
2022-03-14 21:36 ` Jason Gunthorpe
2022-03-15 10:49 ` Robin Murphy
2022-03-17 5:47 ` Tian, Kevin
2022-03-17 13:52 ` Jason Gunthorpe
2022-03-18 2:23 ` Tian, Kevin
2022-03-18 14:13 ` Jason Gunthorpe
2022-03-19 7:51 ` Tian, Kevin
2022-03-21 14:07 ` Jason Gunthorpe
2022-03-22 7:30 ` Tian, Kevin
2022-03-14 19:44 ` [PATCH v4 15/32] vfio: introduce KVM-owned IOMMU type Matthew Rosato
2022-03-14 21:38 ` Jason Gunthorpe
2022-03-15 13:49 ` Matthew Rosato
2022-03-15 14:38 ` Jason Gunthorpe
2022-03-15 16:29 ` Matthew Rosato
2022-03-15 17:25 ` Jason Gunthorpe
2022-03-17 18:51 ` Matthew Rosato
2022-03-14 22:50 ` Alex Williamson
2022-03-14 23:18 ` Jason Gunthorpe
2022-03-15 7:57 ` Tian, Kevin
2022-03-15 14:17 ` Matthew Rosato
2022-03-15 17:01 ` Matthew Rosato
2022-03-15 13:36 ` Matthew Rosato
2022-03-15 14:55 ` Jason Gunthorpe
2022-03-15 16:04 ` Matthew Rosato
2022-03-15 17:18 ` Jason Gunthorpe
2022-03-18 7:01 ` Tian, Kevin
2022-03-18 13:46 ` Jason Gunthorpe
2022-03-19 7:47 ` Tian, Kevin
2022-03-14 19:44 ` [PATCH v4 16/32] vfio-pci/zdev: add function handle to clp base capability Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 17/32] KVM: s390: pci: add basic kvm_zdev structure Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 18/32] iommu/s390: add support for IOMMU_DOMAIN_KVM Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 19/32] KVM: s390: pci: do initial setup for AEN interpretation Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 20/32] KVM: s390: pci: enable host forwarding of Adapter Event Notifications Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 21/32] KVM: s390: mechanism to enable guest zPCI Interpretation Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 22/32] KVM: s390: pci: routines for (dis)associating zPCI devices with a KVM Matthew Rosato
2022-03-14 21:46 ` Jason Gunthorpe
2022-03-15 16:39 ` Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 23/32] KVM: s390: pci: provide routines for enabling/disabling interpretation Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 24/32] KVM: s390: pci: provide routines for enabling/disabling interrupt forwarding Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 25/32] KVM: s390: pci: provide routines for enabling/disabling IOAT assist Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 26/32] KVM: s390: pci: handle refresh of PCI translations Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 27/32] KVM: s390: intercept the rpcit instruction Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 28/32] KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 29/32] vfio-pci/zdev: add DTSM to clp group capability Matthew Rosato
2022-03-14 21:49 ` Jason Gunthorpe
2022-03-15 14:39 ` Matthew Rosato
2022-03-15 14:56 ` Jason Gunthorpe
2022-03-14 19:44 ` [PATCH v4 30/32] KVM: s390: introduce CPU feature for zPCI Interpretation Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 31/32] MAINTAINERS: additional files related kvm s390 pci passthrough Matthew Rosato
2022-03-14 19:44 ` [PATCH v4 32/32] MAINTAINERS: update s390 IOMMU entry Matthew Rosato
2022-03-14 19:52 ` [PATCH v4 00/32] KVM: s390: enable zPCI for interpretive execution Matthew Rosato
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