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[PATCH v4 10/11] s390x/pci: use dtsm provided from vfio capabilities for
From: |
Matthew Rosato |
Subject: |
[PATCH v4 10/11] s390x/pci: use dtsm provided from vfio capabilities for interpreted devices |
Date: |
Mon, 14 Mar 2022 15:49:19 -0400 |
When using the IOAT assist via interpretation, we should advertise what
the host driver supports, not QEMU.
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
hw/s390x/s390-pci-vfio.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c
index 7808e8d939..def4e90a40 100644
--- a/hw/s390x/s390-pci-vfio.c
+++ b/hw/s390x/s390-pci-vfio.c
@@ -181,7 +181,11 @@ static void s390_pci_read_group(S390PCIBusDevice *pbdev,
resgrp->i = cap->noi;
resgrp->maxstbl = cap->maxstbl;
resgrp->version = cap->version;
- resgrp->dtsm = ZPCI_DTSM;
+ if (hdr->version >= 2 && pbdev->interp) {
+ resgrp->dtsm = cap->dtsm;
+ } else {
+ resgrp->dtsm = ZPCI_DTSM;
+ }
}
}
--
2.27.0
- [PATCH v4 00/11] s390x/pci: zPCI interpretation support, Matthew Rosato, 2022/03/14
- [PATCH v4 01/11] Update linux headers, Matthew Rosato, 2022/03/14
- [PATCH v4 02/11] vfio: handle KVM-owned IOMMU requests, Matthew Rosato, 2022/03/14
- [PATCH v4 03/11] target/s390x: add zpci-interp to cpu models, Matthew Rosato, 2022/03/14
- [PATCH v4 04/11] s390x/pci: add routine to get host function handle from CLP info, Matthew Rosato, 2022/03/14
- [PATCH v4 05/11] s390x/pci: enable for load/store intepretation, Matthew Rosato, 2022/03/14
- [PATCH v4 06/11] s390x/pci: don't fence interpreted devices without MSI-X, Matthew Rosato, 2022/03/14
- [PATCH v4 07/11] s390x/pci: enable adapter event notification for interpreted devices, Matthew Rosato, 2022/03/14
- [PATCH v4 08/11] s390x/pci: use KVM-managed IOMMU for interpretation, Matthew Rosato, 2022/03/14
- [PATCH v4 09/11] s390x/pci: use I/O Address Translation assist when interpreting, Matthew Rosato, 2022/03/14
- [PATCH v4 10/11] s390x/pci: use dtsm provided from vfio capabilities for interpreted devices,
Matthew Rosato <=
- [PATCH v4 11/11] s390x/pci: let intercept devices have separate PCI groups, Matthew Rosato, 2022/03/14