€•!S      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ+/translations/zh_CN/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ+/translations/zh_TW/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ+/translations/it_IT/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ+/translations/ja_JP/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ+/translations/ko_KR/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒPortuguese (Brazilian)”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ+/translations/pt_BR/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh–sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ+/translations/sp_SP/virt/kvm/s390/s390-diag”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ SPDX-License-Identifier: GPL-2.0”h]”hŒ SPDX-License-Identifier: GPL-2.0”…””}”hh·sbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1hµhhh²hh³ŒE/var/lib/git/docbuild/linux/Documentation/virt/kvm/s390/s390-diag.rst”h´KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒThe s390 DIAGNOSE call on KVM”h]”hŒThe s390 DIAGNOSE call on KVM”…””}”(hhÏh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhhÊh²hh³hÇh´KubhŒ	paragraph”“”)”}”(hŒ•KVM on s390 supports the DIAGNOSE call for making hypercalls, both for
native hypercalls and for selected hypercalls found on other s390
hypervisors.”h]”hŒ•KVM on s390 supports the DIAGNOSE call for making hypercalls, both for
native hypercalls and for selected hypercalls found on other s390
hypervisors.”…””}”(hhßh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhÞ)”}”(hŒ_Note that bits are numbered as by the usual s390 convention (most significant
bit on the left).”h]”hŒ_Note that bits are numbered as by the usual s390 convention (most significant
bit on the left).”…””}”(hhíh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhÉ)”}”(hhh]”(hÎ)”}”(hŒGeneral remarks”h]”hŒGeneral remarks”…””}”(hhþh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhhûh²hh³hÇh´KubhÞ)”}”(hŒ•DIAGNOSE calls by the guest cause a mandatory intercept. This implies
all supported DIAGNOSE calls need to be handled by either KVM or its
userspace.”h]”hŒ•DIAGNOSE calls by the guest cause a mandatory intercept. This implies
all supported DIAGNOSE calls need to be handled by either KVM or its
userspace.”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khhûh²hubhÞ)”}”(hŒ9All DIAGNOSE calls supported by KVM use the RS-a format::”h]”hŒ8All DIAGNOSE calls supported by KVM use the RS-a format:”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khhûh²hubhŒliteral_block”“”)”}”(hŒœ--------------------------------------
|  '83'  | R1 | R3 | B2 |     D2     |
--------------------------------------
0        8    12   16   20           31”h]”hŒœ--------------------------------------
|  '83'  | R1 | R3 | B2 |     D2     |
--------------------------------------
0        8    12   16   20           31”…””}”hj*  sbah}”(h]”h ]”h"]”h$]”h&]”hÅhÆuh1j(  h³hÇh´Khhûh²hubhÞ)”}”(hŒÁThe second-operand address (obtained by the base/displacement calculation)
is not used to address data. Instead, bits 48-63 of this address specify
the function code, and bits 0-47 are ignored.”h]”hŒÁThe second-operand address (obtained by the base/displacement calculation)
is not used to address data. Instead, bits 48-63 of this address specify
the function code, and bits 0-47 are ignored.”…””}”(hj8  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khhûh²hubhÞ)”}”(hŒ¼The supported DIAGNOSE function codes vary by the userspace used. For
DIAGNOSE function codes not specific to KVM, please refer to the
documentation for the s390 hypervisors defining them.”h]”hŒ¼The supported DIAGNOSE function codes vary by the userspace used. For
DIAGNOSE function codes not specific to KVM, please refer to the
documentation for the s390 hypervisors defining them.”…””}”(hjF  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K!hhûh²hubeh}”(h]”Œgeneral-remarks”ah ]”h"]”Œgeneral remarks”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KubhÉ)”}”(hhh]”(hÎ)”}”(hŒ.DIAGNOSE function code 'X'500' - KVM functions”h]”hŒ4DIAGNOSE function code â€˜Xâ€™500â€™ - KVM functions”…””}”(hj_  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhj\  h²hh³hÇh´K'ubhÞ)”}”(hŒoIf the function code specifies 0x500, various KVM-specific functions
are performed, including virtio functions.”h]”hŒoIf the function code specifies 0x500, various KVM-specific functions
are performed, including virtio functions.”…””}”(hjm  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K)hj\  h²hubhÞ)”}”(hŒÜGeneral register 1 contains the subfunction code. Supported subfunctions
depend on KVM's userspace. Regarding virtio subfunctions, generally
userspace provides either s390-virtio (subcodes 0-2) or virtio-ccw
(subcode 3).”h]”hŒÞGeneral register 1 contains the subfunction code. Supported subfunctions
depend on KVMâ€™s userspace. Regarding virtio subfunctions, generally
userspace provides either s390-virtio (subcodes 0-2) or virtio-ccw
(subcode 3).”…””}”(hj{  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K,hj\  h²hubhÞ)”}”(hŒŸUpon completion of the DIAGNOSE instruction, general register 2 contains
the function's return code, which is either a return code or a subcode
specific value.”h]”hŒ¡Upon completion of the DIAGNOSE instruction, general register 2 contains
the functionâ€™s return code, which is either a return code or a subcode
specific value.”…””}”(hj‰  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K1hj\  h²hubhÞ)”}”(hŒ[If the specified subfunction is not supported, a SPECIFICATION exception
will be triggered.”h]”hŒ[If the specified subfunction is not supported, a SPECIFICATION exception
will be triggered.”…””}”(hj—  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K5hj\  h²hubhŒdefinition_list”“”)”}”(hhh]”(hŒdefinition_list_item”“”)”}”(hŒTSubcode 0 - s390-virtio notification and early console printk
Handled by userspace.
”h]”(hŒterm”“”)”}”(hŒ=Subcode 0 - s390-virtio notification and early console printk”h]”hŒ=Subcode 0 - s390-virtio notification and early console printk”…””}”(hj²  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j°  h³hÇh´K9hj¬  ubhŒ
definition”“”)”}”(hhh]”hÞ)”}”(hŒHandled by userspace.”h]”hŒHandled by userspace.”…””}”(hjÅ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K9hjÂ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jÀ  hj¬  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jª  h³hÇh´K9hj§  ubj«  )”}”(hŒ4Subcode 1 - s390-virtio reset
Handled by userspace.
”h]”(j±  )”}”(hŒSubcode 1 - s390-virtio reset”h]”hŒSubcode 1 - s390-virtio reset”…””}”(hjã  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j°  h³hÇh´K<hjß  ubjÁ  )”}”(hhh]”hÞ)”}”(hŒHandled by userspace.”h]”hŒHandled by userspace.”…””}”(hjô  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K<hjñ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jÀ  hjß  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jª  h³hÇh´K<hj§  h²hubj«  )”}”(hŒ9Subcode 2 - s390-virtio set status
Handled by userspace.
”h]”(j±  )”}”(hŒ"Subcode 2 - s390-virtio set status”h]”hŒ"Subcode 2 - s390-virtio set status”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j°  h³hÇh´K?hj  ubjÁ  )”}”(hhh]”hÞ)”}”(hŒHandled by userspace.”h]”hŒHandled by userspace.”…””}”(hj#  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K?hj   ubah}”(h]”h ]”h"]”h$]”h&]”uh1jÀ  hj  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jª  h³hÇh´K?hj§  h²hubj«  )”}”(hX¿  Subcode 3 - virtio-ccw notification
Handled by either userspace or KVM (ioeventfd case).

General register 2 contains a subchannel-identification word denoting
the subchannel of the virtio-ccw proxy device to be notified.

General register 3 contains the number of the virtqueue to be notified.

General register 4 contains a 64bit identifier for KVM usage (the
kvm_io_bus cookie). If general register 4 does not contain a valid
identifier, it is ignored.

After completion of the DIAGNOSE call, general register 2 may contain
a 64bit identifier (in the kvm_io_bus cookie case), or a negative
error value, if an internal error occurred.

See also the virtio standard for a discussion of this hypercall.
”h]”(j±  )”}”(hŒ#Subcode 3 - virtio-ccw notification”h]”hŒ#Subcode 3 - virtio-ccw notification”…””}”(hjA  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j°  h³hÇh´KQhj=  ubjÁ  )”}”(hhh]”(hÞ)”}”(hŒ4Handled by either userspace or KVM (ioeventfd case).”h]”hŒ4Handled by either userspace or KVM (ioeventfd case).”…””}”(hjR  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KBhjO  ubhÞ)”}”(hŒƒGeneral register 2 contains a subchannel-identification word denoting
the subchannel of the virtio-ccw proxy device to be notified.”h]”hŒƒGeneral register 2 contains a subchannel-identification word denoting
the subchannel of the virtio-ccw proxy device to be notified.”…””}”(hj`  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KDhjO  ubhÞ)”}”(hŒGGeneral register 3 contains the number of the virtqueue to be notified.”h]”hŒGGeneral register 3 contains the number of the virtqueue to be notified.”…””}”(hjn  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KGhjO  ubhÞ)”}”(hŒŸGeneral register 4 contains a 64bit identifier for KVM usage (the
kvm_io_bus cookie). If general register 4 does not contain a valid
identifier, it is ignored.”h]”hŒŸGeneral register 4 contains a 64bit identifier for KVM usage (the
kvm_io_bus cookie). If general register 4 does not contain a valid
identifier, it is ignored.”…””}”(hj|  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KIhjO  ubhÞ)”}”(hŒ³After completion of the DIAGNOSE call, general register 2 may contain
a 64bit identifier (in the kvm_io_bus cookie case), or a negative
error value, if an internal error occurred.”h]”hŒ³After completion of the DIAGNOSE call, general register 2 may contain
a 64bit identifier (in the kvm_io_bus cookie case), or a negative
error value, if an internal error occurred.”…””}”(hjŠ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KMhjO  ubhÞ)”}”(hŒ@See also the virtio standard for a discussion of this hypercall.”h]”hŒ@See also the virtio standard for a discussion of this hypercall.”…””}”(hj˜  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KQhjO  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jÀ  hj=  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jª  h³hÇh´KQhj§  h²hubj«  )”}”(hXÊ  Subcode 4 - storage-limit
Handled by userspace.

After completion of the DIAGNOSE call, general register 2 will
contain the storage limit: the maximum physical address that might be
used for storage throughout the lifetime of the VM.

The storage limit does not indicate currently usable storage, it may
include holes, standby storage and areas reserved for other means, such
as memory hotplug or virtio-mem devices. Other interfaces for detecting
actually usable storage, such as SCLP, must be used in conjunction with
this subfunction.

Note that the storage limit can be larger, but never smaller than the
maximum storage address indicated by SCLP via the "maximum storage
increment" and the "increment size".

”h]”(j±  )”}”(hŒSubcode 4 - storage-limit”h]”hŒSubcode 4 - storage-limit”…””}”(hj¶  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j°  h³hÇh´Kchj²  ubjÁ  )”}”(hhh]”(hÞ)”}”(hŒHandled by userspace.”h]”hŒHandled by userspace.”…””}”(hjÇ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KThjÄ  ubhÞ)”}”(hŒ¸After completion of the DIAGNOSE call, general register 2 will
contain the storage limit: the maximum physical address that might be
used for storage throughout the lifetime of the VM.”h]”hŒ¸After completion of the DIAGNOSE call, general register 2 will
contain the storage limit: the maximum physical address that might be
used for storage throughout the lifetime of the VM.”…””}”(hjÕ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KVhjÄ  ubhÞ)”}”(hX.  The storage limit does not indicate currently usable storage, it may
include holes, standby storage and areas reserved for other means, such
as memory hotplug or virtio-mem devices. Other interfaces for detecting
actually usable storage, such as SCLP, must be used in conjunction with
this subfunction.”h]”hX.  The storage limit does not indicate currently usable storage, it may
include holes, standby storage and areas reserved for other means, such
as memory hotplug or virtio-mem devices. Other interfaces for detecting
actually usable storage, such as SCLP, must be used in conjunction with
this subfunction.”…””}”(hjã  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KZhjÄ  ubhÞ)”}”(hŒ­Note that the storage limit can be larger, but never smaller than the
maximum storage address indicated by SCLP via the "maximum storage
increment" and the "increment size".”h]”hŒµNote that the storage limit can be larger, but never smaller than the
maximum storage address indicated by SCLP via the â€œmaximum storage
incrementâ€ and the â€œincrement sizeâ€.”…””}”(hjñ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K`hjÄ  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jÀ  hj²  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jª  h³hÇh´Kchj§  h²hubeh}”(h]”h ]”h"]”h$]”h&]”uh1j¥  hj\  h²hh³hÇh´Nubeh}”(h]”Œ*diagnose-function-code-x-500-kvm-functions”ah ]”h"]”Œ.diagnose function code 'x'500' - kvm functions”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´K'ubhÉ)”}”(hhh]”(hÎ)”}”(hŒ.DIAGNOSE function code 'X'501 - KVM breakpoint”h]”hŒ2DIAGNOSE function code â€˜Xâ€™501 - KVM breakpoint”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhj  h²hh³hÇh´KfubhÞ)”}”(hŒxIf the function code specifies 0x501, breakpoint functions may be performed.
This function code is handled by userspace.”h]”hŒxIf the function code specifies 0x501, breakpoint functions may be performed.
This function code is handled by userspace.”…””}”(hj*  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khhj  h²hubhÞ)”}”(hŒGThis diagnose function code has no subfunctions and uses no parameters.”h]”hŒGThis diagnose function code has no subfunctions and uses no parameters.”…””}”(hj8  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Kkhj  h²hubeh}”(h]”Œ+diagnose-function-code-x-501-kvm-breakpoint”ah ]”h"]”Œ.diagnose function code 'x'501 - kvm breakpoint”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KfubhÉ)”}”(hhh]”(hÎ)”}”(hŒ9DIAGNOSE function code 'X'9C - Voluntary Time Slice Yield”h]”hŒ=DIAGNOSE function code â€˜Xâ€™9C - Voluntary Time Slice Yield”…””}”(hjQ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhjN  h²hh³hÇh´KoubhÞ)”}”(hŒ3General register 1 contains the target CPU address.”h]”hŒ3General register 1 contains the target CPU address.”…””}”(hj_  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KqhjN  h²hubhÞ)”}”(hX)  In a guest of a hypervisor like LPAR, KVM or z/VM using shared host CPUs,
DIAGNOSE with function code 0x9c may improve system performance by
yielding the host CPU on which the guest CPU is running to be assigned
to another guest CPU, preferably the logical CPU containing the specified
target CPU.”h]”hX)  In a guest of a hypervisor like LPAR, KVM or z/VM using shared host CPUs,
DIAGNOSE with function code 0x9c may improve system performance by
yielding the host CPU on which the guest CPU is running to be assigned
to another guest CPU, preferably the logical CPU containing the specified
target CPU.”…””}”(hjm  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KshjN  h²hubhÉ)”}”(hhh]”(hÎ)”}”(hŒDIAG 'X'9C forwarding”h]”hŒDIAG â€˜Xâ€™9C forwarding”…””}”(hj~  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhj{  h²hh³hÇh´K{ubhÞ)”}”(hŒÀThe guest may send a DIAGNOSE 0x9c in order to yield to a certain
other vcpu. An example is a Linux guest that tries to yield to the vcpu
that is currently holding a spinlock, but not running.”h]”hŒÀThe guest may send a DIAGNOSE 0x9c in order to yield to a certain
other vcpu. An example is a Linux guest that tries to yield to the vcpu
that is currently holding a spinlock, but not running.”…””}”(hjŒ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K}hj{  h²hubhÞ)”}”(hŒúHowever, on the host the real cpu backing the vcpu may itself not be
running.
Forwarding the DIAGNOSE 0x9c initially sent by the guest to yield to
the backing cpu will hopefully cause that cpu, and thus subsequently
the guest's vcpu, to be scheduled.”h]”hŒüHowever, on the host the real cpu backing the vcpu may itself not be
running.
Forwarding the DIAGNOSE 0x9c initially sent by the guest to yield to
the backing cpu will hopefully cause that cpu, and thus subsequently
the guestâ€™s vcpu, to be scheduled.”…””}”(hjš  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj{  h²hubj¦  )”}”(hhh]”j«  )”}”(hŒÛdiag9c_forwarding_hz
KVM kernel parameter allowing to specify the maximum number of DIAGNOSE
0x9c forwarding per second in the purpose of avoiding a DIAGNOSE 0x9c
forwarding storm.
A value of 0 turns the forwarding off.”h]”(j±  )”}”(hŒdiag9c_forwarding_hz”h]”hŒdiag9c_forwarding_hz”…””}”(hj¯  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j°  h³hÇh´K‹hj«  ubjÁ  )”}”(hhh]”hÞ)”}”(hŒÆKVM kernel parameter allowing to specify the maximum number of DIAGNOSE
0x9c forwarding per second in the purpose of avoiding a DIAGNOSE 0x9c
forwarding storm.
A value of 0 turns the forwarding off.”h]”hŒÆKVM kernel parameter allowing to specify the maximum number of DIAGNOSE
0x9c forwarding per second in the purpose of avoiding a DIAGNOSE 0x9c
forwarding storm.
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