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authorMatthew Rosato <mjrosato@linux.ibm.com>2022-09-02 13:27:37 -0400
committerThomas Huth <thuth@redhat.com>2022-09-26 17:23:47 +0200
commit59d1ce44396e3ad2330dc3261ff3da7ad3a16184 (patch)
tree40c39918509ee762d7563aa2c270b9018f47fd71 /hw/s390x/s390-pci-kvm.c
parent9ee8f7e46a7d42ede69a4780200129bf1acb0d01 (diff)
s390x/s390-virtio-ccw: add zpcii-disable machine property
The zpcii-disable machine property can be used to force-disable the use of zPCI interpretation facilities for a VM. By default, this setting will be off for machine 7.2 and newer. Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Message-Id: <20220902172737.170349-9-mjrosato@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> [thuth: Fix contextual conflict in ccw_machine_7_1_instance_options()] Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'hw/s390x/s390-pci-kvm.c')
-rw-r--r--hw/s390x/s390-pci-kvm.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/s390x/s390-pci-kvm.c b/hw/s390x/s390-pci-kvm.c
index 9134fe185f..5eb7fd12e2 100644
--- a/hw/s390x/s390-pci-kvm.c
+++ b/hw/s390x/s390-pci-kvm.c
@@ -22,7 +22,9 @@
bool s390_pci_kvm_interp_allowed(void)
{
- return kvm_s390_get_zpci_op() && !s390_is_pv();
+ return (kvm_s390_get_zpci_op() && !s390_is_pv() &&
+ !object_property_get_bool(OBJECT(qdev_get_machine()),
+ "zpcii-disable", NULL));
}
int s390_pci_kvm_aif_enable(S390PCIBusDevice *pbdev, ZpciFib *fib, bool assist)