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[PATCH v2 8/9] s390x/pci: use dtsm provided from vfio capabilities for i
From: |
Matthew Rosato |
Subject: |
[PATCH v2 8/9] s390x/pci: use dtsm provided from vfio capabilities for interpreted devices |
Date: |
Fri, 14 Jan 2022 15:38:48 -0500 |
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 4e3165bff5..347cbdfdf8 100644
--- a/hw/s390x/s390-pci-vfio.c
+++ b/hw/s390x/s390-pci-vfio.c
@@ -318,7 +318,11 @@ 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
- Re: [PATCH v2 4/9] s390x/pci: enable for load/store intepretation, (continued)
- [PATCH v2 6/9] s390x/pci: enable adapter event notification for interpreted devices, Matthew Rosato, 2022/01/14
- [PATCH v2 8/9] s390x/pci: use dtsm provided from vfio capabilities for interpreted devices,
Matthew Rosato <=
- [PATCH v2 5/9] s390x/pci: don't fence interpreted devices without MSI-X, Matthew Rosato, 2022/01/14
- [PATCH v2 9/9] s390x/pci: let intercept devices have separate PCI groups, Matthew Rosato, 2022/01/14
- [PATCH v2 7/9] s390x/pci: use I/O Address Translation assist when interpreting, Matthew Rosato, 2022/01/14
- Re: [PATCH v2 0/9] s390x/pci: zPCI interpretation support, Thomas Huth, 2022/01/17