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, pbonzini@redhat.com, corbet@lwn.net,
jgg@nvidia.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: [PATCH v6 20/21] KVM: s390: introduce CPU feature for zPCI Interpretation
Date: Tue, 26 Apr 2022 16:08:41 -0400 [thread overview]
Message-ID: <20220426200842.98655-21-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <20220426200842.98655-1-mjrosato@linux.ibm.com>
KVM_S390_VM_CPU_FEAT_ZPCI_INTERP relays whether zPCI interpretive
execution is possible based on the available hardware facilities.
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
arch/s390/include/uapi/asm/kvm.h | 1 +
arch/s390/kvm/kvm-s390.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 7a6b14874d65..ed06458a871f 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -130,6 +130,7 @@ struct kvm_s390_vm_cpu_machine {
#define KVM_S390_VM_CPU_FEAT_PFMFI 11
#define KVM_S390_VM_CPU_FEAT_SIGPIF 12
#define KVM_S390_VM_CPU_FEAT_KSS 13
+#define KVM_S390_VM_CPU_FEAT_ZPCI_INTERP 14
struct kvm_s390_vm_cpu_feat {
__u64 feat[16];
};
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 69e435b06425..32b1c5d3d46b 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -433,6 +433,10 @@ static void kvm_s390_cpu_feat_init(void)
if (test_facility(151)) /* DFLTCC */
__insn32_query(INSN_DFLTCC, kvm_s390_available_subfunc.dfltcc);
+ /* zPCI Interpretation */
+ if (kvm_s390_pci_interp_allowed())
+ allow_cpu_feat(KVM_S390_VM_CPU_FEAT_ZPCI_INTERP);
+
if (MACHINE_HAS_ESOP)
allow_cpu_feat(KVM_S390_VM_CPU_FEAT_ESOP);
/*
--
2.27.0
next prev parent reply other threads:[~2022-04-26 20:12 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-26 20:08 [PATCH v6 00/21] KVM: s390: enable zPCI for interpretive execution Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 01/21] s390/sclp: detect the zPCI load/store interpretation facility Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 02/21] s390/sclp: detect the AISII facility Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 03/21] s390/sclp: detect the AENI facility Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 04/21] s390/sclp: detect the AISI facility Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 05/21] s390/airq: pass more TPI info to airq handlers Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 06/21] s390/airq: allow for airq structure that uses an input vector Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 07/21] s390/pci: externalize the SIC operation controls and routine Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 08/21] s390/pci: stash associated GISA designation Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 09/21] s390/pci: stash dtsm and maxstbl Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 10/21] KVM: s390: pci: add basic kvm_zdev structure Matthew Rosato
2022-04-27 8:41 ` kernel test robot
2022-04-27 13:25 ` Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 11/21] KVM: s390: pci: do initial setup for AEN interpretation Matthew Rosato
2022-05-05 10:16 ` Christian Borntraeger
2022-04-26 20:08 ` [PATCH v6 12/21] KVM: s390: pci: enable host forwarding of Adapter Event Notifications Matthew Rosato
2022-05-05 12:37 ` Christian Borntraeger
2022-04-26 20:08 ` [PATCH v6 13/21] KVM: s390: mechanism to enable guest zPCI Interpretation Matthew Rosato
2022-05-05 13:10 ` Christian Borntraeger
2022-04-26 20:08 ` [PATCH v6 14/21] KVM: s390: pci: provide routines for enabling/disabling interrupt forwarding Matthew Rosato
2022-05-06 15:35 ` Christian Borntraeger
2022-05-06 15:55 ` Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 15/21] KVM: s390: pci: add routines to start/stop interpretive execution Matthew Rosato
2022-04-27 15:14 ` Jason Gunthorpe
2022-04-27 20:20 ` Matthew Rosato
2022-04-28 12:28 ` Jason Gunthorpe
2022-04-26 20:08 ` [PATCH v6 16/21] vfio-pci/zdev: add open/close device hooks Matthew Rosato
2022-04-27 14:04 ` Jason Gunthorpe
2022-04-27 14:42 ` Matthew Rosato
2022-04-27 15:01 ` Jason Gunthorpe
2022-04-27 15:26 ` Matthew Rosato
2022-04-27 15:39 ` Jason Gunthorpe
2022-05-06 15:56 ` Christian Borntraeger
2022-04-26 20:08 ` [PATCH v6 17/21] vfio-pci/zdev: add function handle to clp base capability Matthew Rosato
2022-05-06 16:02 ` Christian Borntraeger
2022-04-26 20:08 ` [PATCH v6 18/21] vfio-pci/zdev: different maxstbl for interpreted devices Matthew Rosato
2022-04-26 20:08 ` [PATCH v6 19/21] KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices Matthew Rosato
2022-04-26 20:08 ` Matthew Rosato [this message]
2022-04-26 20:08 ` [PATCH v6 21/21] MAINTAINERS: additional files related kvm s390 pci passthrough Matthew Rosato
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