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 08/32] s390/pci: stash associated GISA designation
Date: Mon, 14 Mar 2022 15:44:27 -0400 [thread overview]
Message-ID: <20220314194451.58266-9-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <20220314194451.58266-1-mjrosato@linux.ibm.com>
For passthrough devices, we will need to know the GISA designation of the
guest if interpretation facilities are to be used. Setup to stash this in
the zdev and set a default of 0 (no GISA designation) for now; a subsequent
patch will set a valid GISA designation for passthrough devices.
Also, extend mpcific routines to specify this stashed designation as part
of the mpcific command.
Reviewed-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/include/asm/pci_clp.h | 3 ++-
arch/s390/pci/pci.c | 6 ++++++
arch/s390/pci/pci_clp.c | 1 +
arch/s390/pci/pci_irq.c | 5 +++++
5 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 90824be5ce9a..d07d7c3205de 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -123,6 +123,7 @@ struct zpci_dev {
enum zpci_state state;
u32 fid; /* function ID, used by sclp */
u32 fh; /* function handle, used by insn's */
+ u32 gisa; /* GISA designation for passthrough */
u16 vfn; /* virtual function number */
u16 pchid; /* physical channel ID */
u8 pfgid; /* function group ID */
diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h
index 1f4b666e85ee..f3286bc5ba6e 100644
--- a/arch/s390/include/asm/pci_clp.h
+++ b/arch/s390/include/asm/pci_clp.h
@@ -173,7 +173,8 @@ struct clp_req_set_pci {
u16 reserved2;
u8 oc; /* operation controls */
u8 ndas; /* number of dma spaces */
- u64 reserved3;
+ u32 reserved3;
+ u32 gisa; /* GISA designation */
} __packed;
/* Set PCI function response */
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 792f8e0f2178..ca9c29386de6 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -119,6 +119,7 @@ int zpci_register_ioat(struct zpci_dev *zdev, u8 dmaas,
fib.pba = base;
fib.pal = limit;
fib.iota = iota | ZPCI_IOTA_RTTO_FLAG;
+ fib.gd = zdev->gisa;
cc = zpci_mod_fc(req, &fib, &status);
if (cc)
zpci_dbg(3, "reg ioat fid:%x, cc:%d, status:%d\n", zdev->fid, cc, status);
@@ -132,6 +133,8 @@ int zpci_unregister_ioat(struct zpci_dev *zdev, u8 dmaas)
struct zpci_fib fib = {0};
u8 cc, status;
+ fib.gd = zdev->gisa;
+
cc = zpci_mod_fc(req, &fib, &status);
if (cc)
zpci_dbg(3, "unreg ioat fid:%x, cc:%d, status:%d\n", zdev->fid, cc, status);
@@ -159,6 +162,7 @@ int zpci_fmb_enable_device(struct zpci_dev *zdev)
atomic64_set(&zdev->unmapped_pages, 0);
fib.fmb_addr = virt_to_phys(zdev->fmb);
+ fib.gd = zdev->gisa;
cc = zpci_mod_fc(req, &fib, &status);
if (cc) {
kmem_cache_free(zdev_fmb_cache, zdev->fmb);
@@ -177,6 +181,8 @@ int zpci_fmb_disable_device(struct zpci_dev *zdev)
if (!zdev->fmb)
return -EINVAL;
+ fib.gd = zdev->gisa;
+
/* Function measurement is disabled if fmb address is zero */
cc = zpci_mod_fc(req, &fib, &status);
if (cc == 3) /* Function already gone. */
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index be077b39da33..4dcc37ddeeaf 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -240,6 +240,7 @@ static int clp_set_pci_fn(struct zpci_dev *zdev, u32 *fh, u8 nr_dma_as, u8 comma
rrb->request.fh = zdev->fh;
rrb->request.oc = command;
rrb->request.ndas = nr_dma_as;
+ rrb->request.gisa = zdev->gisa;
rc = clp_req(rrb, CLP_LPS_PCI);
if (rrb->response.hdr.rsp == CLP_RC_SETPCIFN_BUSY) {
diff --git a/arch/s390/pci/pci_irq.c b/arch/s390/pci/pci_irq.c
index 2f675355fd0c..a19ac0282929 100644
--- a/arch/s390/pci/pci_irq.c
+++ b/arch/s390/pci/pci_irq.c
@@ -43,6 +43,7 @@ static int zpci_set_airq(struct zpci_dev *zdev)
fib.fmt0.aibvo = 0; /* each zdev has its own interrupt vector */
fib.fmt0.aisb = virt_to_phys(zpci_sbv->vector) + (zdev->aisb / 64) * 8;
fib.fmt0.aisbo = zdev->aisb & 63;
+ fib.gd = zdev->gisa;
return zpci_mod_fc(req, &fib, &status) ? -EIO : 0;
}
@@ -54,6 +55,8 @@ static int zpci_clear_airq(struct zpci_dev *zdev)
struct zpci_fib fib = {0};
u8 cc, status;
+ fib.gd = zdev->gisa;
+
cc = zpci_mod_fc(req, &fib, &status);
if (cc == 3 || (cc == 1 && status == 24))
/* Function already gone or IRQs already deregistered. */
@@ -72,6 +75,7 @@ static int zpci_set_directed_irq(struct zpci_dev *zdev)
fib.fmt = 1;
fib.fmt1.noi = zdev->msi_nr_irqs;
fib.fmt1.dibvo = zdev->msi_first_bit;
+ fib.gd = zdev->gisa;
return zpci_mod_fc(req, &fib, &status) ? -EIO : 0;
}
@@ -84,6 +88,7 @@ static int zpci_clear_directed_irq(struct zpci_dev *zdev)
u8 cc, status;
fib.fmt = 1;
+ fib.gd = zdev->gisa;
cc = zpci_mod_fc(req, &fib, &status);
if (cc == 3 || (cc == 1 && status == 24))
/* Function already gone or IRQs already deregistered. */
--
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 ` Matthew Rosato [this message]
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 ` [PATCH v4 11/32] s390/pci: add helper function to find device by handle Matthew Rosato
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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