diff options
| author | Matthew Rosato | 2022-09-02 19:27:37 +0200 |
|---|---|---|
| committer | Thomas Huth | 2022-09-26 17:23:47 +0200 |
| commit | 59d1ce44396e3ad2330dc3261ff3da7ad3a16184 (patch) | |
| tree | 40c39918509ee762d7563aa2c270b9018f47fd71 /qemu-options.hx | |
| parent | s390x/pci: reflect proper maxstbl for groups of interpreted devices (diff) | |
| download | qemu-59d1ce44396e3ad2330dc3261ff3da7ad3a16184.tar.gz qemu-59d1ce44396e3ad2330dc3261ff3da7ad3a16184.tar.xz qemu-59d1ce44396e3ad2330dc3261ff3da7ad3a16184.zip | |
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 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index d8b5ce5b43..7c61868b68 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -37,7 +37,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ " memory-encryption=@var{} memory encryption object to use (default=none)\n" " hmat=on|off controls ACPI HMAT support (default=off)\n" " memory-backend='backend-id' specifies explicitly provided backend for main RAM (default=none)\n" - " cxl-fmw.0.targets.0=firsttarget,cxl-fmw.0.targets.1=secondtarget,cxl-fmw.0.size=size[,cxl-fmw.0.interleave-granularity=granularity]\n", + " cxl-fmw.0.targets.0=firsttarget,cxl-fmw.0.targets.1=secondtarget,cxl-fmw.0.size=size[,cxl-fmw.0.interleave-granularity=granularity]\n" + " zpcii-disable=on|off disables zPCI interpretation facilities (default=off)\n", QEMU_ARCH_ALL) SRST ``-machine [type=]name[,prop=value[,...]]`` @@ -157,6 +158,11 @@ SRST :: -machine cxl-fmw.0.targets.0=cxl.0,cxl-fmw.0.targets.1=cxl.1,cxl-fmw.0.size=128G,cxl-fmw.0.interleave-granularity=512k + + ``zpcii-disable=on|off`` + Disables zPCI interpretation facilties on s390-ccw hosts. + This feature can be used to disable hardware virtual assists + related to zPCI devices. The default is off. ERST DEF("M", HAS_ARG, QEMU_OPTION_M, |