On 12/2/21 17:41, Matthew Rosato wrote:
The DTSM is a mask that specifies which I/O Address Translation designation
types are supported. A linux guest today does not look at this field but
Even Linux is the most used guest it is not the only one so may be not
mention Linux here.
could in the future; let's advertise what QEMU actually supports.
Signed-off-by: Matthew Rosato <mjros...@linux.ibm.com>
---
hw/s390x/s390-pci-bus.c | 1 +
hw/s390x/s390-pci-vfio.c | 1 +
include/hw/s390x/s390-pci-bus.h | 1 +
include/hw/s390x/s390-pci-clp.h | 3 ++-
4 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 1b51a72838..01b58ebc70 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -782,6 +782,7 @@ static void s390_pci_init_default_group(void)
resgrp->i = 128;
resgrp->maxstbl = 128;
resgrp->version = 0;
+ resgrp->dtsm = ZPCI_DTSM;
OK
}
static void set_pbdev_info(S390PCIBusDevice *pbdev)
diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c
index 2a153fa8c9..6f80a47e29 100644
--- a/hw/s390x/s390-pci-vfio.c
+++ b/hw/s390x/s390-pci-vfio.c
@@ -160,6 +160,7 @@ static void s390_pci_read_group(S390PCIBusDevice *pbdev,
resgrp->i = cap->noi;
resgrp->maxstbl = cap->maxstbl;
resgrp->version = cap->version;
+ resgrp->dtsm = ZPCI_DTSM;
Is it safe for VFIO whith interpretation?
Shouldn't we extend the capability and use the host DTSM in this case?
...snip...
--
Pierre Morel
IBM Lab Boeblingen
