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[Xen-devel] [xen-4.8-testing test] 122466: regressions - FAIL



flight 122466 xen-4.8-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/122466/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-armhf-armhf-xl-xsm         <job status>                 broken  in 122414
 test-xtf-amd64-amd64-4 50 xtf/test-hvm64-lbr-tsx-vmentry fail REGR. vs. 122161

Tests which are failing intermittently (not blocking):
 test-armhf-armhf-xl-xsm      4 host-install(4) broken in 122414 pass in 122466
 test-amd64-i386-xl-qemuu-debianhvm-amd64 16 guest-localmigrate/x10 fail in 
122414 pass in 122466
 test-xtf-amd64-amd64-3   50 xtf/test-hvm64-lbr-tsx-vmentry fail pass in 122414
 test-armhf-armhf-xl-rtds     12 guest-start                fail pass in 122414

Tests which did not succeed, but are not blocking:
 test-armhf-armhf-xl-rtds 16 guest-start/debian.repeat fail in 122414 like 
122161
 test-armhf-armhf-xl-rtds    13 migrate-support-check fail in 122414 never pass
 test-armhf-armhf-xl-rtds 14 saverestore-support-check fail in 122414 never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop            fail like 122161
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop             fail like 122161
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop             fail like 122161
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop            fail like 122161
 test-amd64-i386-xl-qemuu-ws16-amd64 17 guest-stop             fail like 122161
 test-amd64-amd64-xl-qemut-ws16-amd64 17 guest-stop            fail like 122161
 test-amd64-i386-xl-qemut-ws16-amd64 17 guest-stop             fail like 122161
 test-amd64-amd64-xl-qemuu-ws16-amd64 17 guest-stop            fail like 122161
 build-i386-prev               7 xen-build/dist-test          fail   never pass
 test-amd64-i386-libvirt-xsm  13 migrate-support-check        fail   never pass
 test-amd64-amd64-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-amd64-amd64-libvirt     13 migrate-support-check        fail   never pass
 test-amd64-i386-libvirt      13 migrate-support-check        fail   never pass
 build-amd64-prev              7 xen-build/dist-test          fail   never pass
 test-arm64-arm64-xl-credit2  13 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-credit2  14 saverestore-support-check    fail   never pass
 test-arm64-arm64-xl-xsm      13 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-xsm      14 saverestore-support-check    fail   never pass
 test-arm64-arm64-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-arm64-arm64-libvirt-xsm 14 saverestore-support-check    fail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 11 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 11 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-vhd 12 migrate-support-check        fail   never pass
 test-amd64-amd64-qemuu-nested-amd 17 debian-hvm-install/l1/l2  fail never pass
 test-armhf-armhf-xl-arndale  13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-arndale  14 saverestore-support-check    fail   never pass
 test-armhf-armhf-libvirt     13 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt     14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-xsm      13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-xsm      14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl          13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl          14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-cubietruck 13 migrate-support-check        fail never pass
 test-armhf-armhf-xl-credit2  13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-credit2  14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-cubietruck 14 saverestore-support-check    fail never pass
 test-armhf-armhf-xl-multivcpu 13 migrate-support-check        fail  never pass
 test-armhf-armhf-xl-multivcpu 14 saverestore-support-check    fail  never pass
 test-armhf-armhf-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt-xsm 14 saverestore-support-check    fail   never pass
 test-armhf-armhf-libvirt-raw 12 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt-raw 13 saverestore-support-check    fail   never pass
 test-arm64-arm64-xl          13 migrate-support-check        fail   never pass
 test-arm64-arm64-xl          14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-vhd      12 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-vhd      13 saverestore-support-check    fail   never pass
 test-amd64-amd64-xl-qemut-win10-i386 10 windows-install        fail never pass
 test-amd64-i386-xl-qemut-win10-i386 10 windows-install         fail never pass
 test-amd64-amd64-xl-qemuu-win10-i386 10 windows-install        fail never pass
 test-amd64-i386-xl-qemuu-win10-i386 10 windows-install         fail never pass

version targeted for testing:
 xen                  1052a2168ed62999b35319a435c16da884f5f0e2
baseline version:
 xen                  08647952260725344f4e67d2190c2c4c8457cea2

Last test of basis   122161  2018-04-10 12:23:21 Z   18 days
Failing since        122354  2018-04-23 11:06:06 Z    5 days    4 attempts
Testing same since   122414  2018-04-25 13:23:12 Z    3 days    2 attempts

------------------------------------------------------------
People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  Anthony PERARD <anthony.perard@xxxxxxxxxx>
  Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Juergen Gross <jgross@xxxxxxxx>
  Kevin Tian <kevin.tian@xxxxxxxxx>
  Wei Liu <wei.liu2@xxxxxxxxxx>

jobs:
 build-amd64-xsm                                              pass    
 build-arm64-xsm                                              pass    
 build-armhf-xsm                                              pass    
 build-i386-xsm                                               pass    
 build-amd64-xtf                                              pass    
 build-amd64                                                  pass    
 build-arm64                                                  pass    
 build-armhf                                                  pass    
 build-i386                                                   pass    
 build-amd64-libvirt                                          pass    
 build-arm64-libvirt                                          pass    
 build-armhf-libvirt                                          pass    
 build-i386-libvirt                                           pass    
 build-amd64-prev                                             pass    
 build-i386-prev                                              pass    
 build-amd64-pvops                                            pass    
 build-arm64-pvops                                            pass    
 build-armhf-pvops                                            pass    
 build-i386-pvops                                             pass    
 build-amd64-rumprun                                          pass    
 build-i386-rumprun                                           pass    
 test-xtf-amd64-amd64-1                                       pass    
 test-xtf-amd64-amd64-2                                       pass    
 test-xtf-amd64-amd64-3                                       pass    
 test-xtf-amd64-amd64-4                                       pass    
 test-xtf-amd64-amd64-5                                       pass    
 test-amd64-amd64-xl                                          pass    
 test-arm64-arm64-xl                                          pass    
 test-armhf-armhf-xl                                          pass    
 test-amd64-i386-xl                                           pass    
 test-amd64-amd64-xl-qemut-debianhvm-amd64-xsm                pass    
 test-amd64-i386-xl-qemut-debianhvm-amd64-xsm                 pass    
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm           pass    
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm            pass    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-xsm                pass    
 test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm                 pass    
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm        pass    
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm         pass    
 test-amd64-amd64-libvirt-xsm                                 pass    
 test-arm64-arm64-libvirt-xsm                                 pass    
 test-armhf-armhf-libvirt-xsm                                 pass    
 test-amd64-i386-libvirt-xsm                                  pass    
 test-amd64-amd64-xl-xsm                                      pass    
 test-arm64-arm64-xl-xsm                                      pass    
 test-armhf-armhf-xl-xsm                                      pass    
 test-amd64-i386-xl-xsm                                       pass    
 test-amd64-amd64-qemuu-nested-amd                            fail    
 test-amd64-i386-qemut-rhel6hvm-amd                           pass    
 test-amd64-i386-qemuu-rhel6hvm-amd                           pass    
 test-amd64-amd64-xl-qemut-debianhvm-amd64                    pass    
 test-amd64-i386-xl-qemut-debianhvm-amd64                     pass    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64                    pass    
 test-amd64-i386-xl-qemuu-debianhvm-amd64                     pass    
 test-amd64-i386-freebsd10-amd64                              pass    
 test-amd64-amd64-xl-qemuu-ovmf-amd64                         pass    
 test-amd64-i386-xl-qemuu-ovmf-amd64                          pass    
 test-amd64-amd64-rumprun-amd64                               pass    
 test-amd64-amd64-xl-qemut-win7-amd64                         fail    
 test-amd64-i386-xl-qemut-win7-amd64                          fail    
 test-amd64-amd64-xl-qemuu-win7-amd64                         fail    
 test-amd64-i386-xl-qemuu-win7-amd64                          fail    
 test-amd64-amd64-xl-qemut-ws16-amd64                         fail    
 test-amd64-i386-xl-qemut-ws16-amd64                          fail    
 test-amd64-amd64-xl-qemuu-ws16-amd64                         fail    
 test-amd64-i386-xl-qemuu-ws16-amd64                          fail    
 test-armhf-armhf-xl-arndale                                  pass    
 test-amd64-amd64-xl-credit2                                  pass    
 test-arm64-arm64-xl-credit2                                  pass    
 test-armhf-armhf-xl-credit2                                  pass    
 test-armhf-armhf-xl-cubietruck                               pass    
 test-amd64-i386-freebsd10-i386                               pass    
 test-amd64-i386-rumprun-i386                                 pass    
 test-amd64-amd64-xl-qemut-win10-i386                         fail    
 test-amd64-i386-xl-qemut-win10-i386                          fail    
 test-amd64-amd64-xl-qemuu-win10-i386                         fail    
 test-amd64-i386-xl-qemuu-win10-i386                          fail    
 test-amd64-amd64-qemuu-nested-intel                          pass    
 test-amd64-i386-qemut-rhel6hvm-intel                         pass    
 test-amd64-i386-qemuu-rhel6hvm-intel                         pass    
 test-amd64-amd64-libvirt                                     pass    
 test-armhf-armhf-libvirt                                     pass    
 test-amd64-i386-libvirt                                      pass    
 test-amd64-amd64-livepatch                                   pass    
 test-amd64-i386-livepatch                                    pass    
 test-amd64-amd64-migrupgrade                                 pass    
 test-amd64-i386-migrupgrade                                  pass    
 test-amd64-amd64-xl-multivcpu                                pass    
 test-armhf-armhf-xl-multivcpu                                pass    
 test-amd64-amd64-pair                                        pass    
 test-amd64-i386-pair                                         pass    
 test-amd64-amd64-libvirt-pair                                pass    
 test-amd64-i386-libvirt-pair                                 pass    
 test-amd64-amd64-amd64-pvgrub                                pass    
 test-amd64-amd64-i386-pvgrub                                 pass    
 test-amd64-amd64-pygrub                                      pass    
 test-amd64-amd64-xl-qcow2                                    pass    
 test-armhf-armhf-libvirt-raw                                 pass    
 test-amd64-i386-xl-raw                                       pass    
 test-amd64-amd64-xl-rtds                                     pass    
 test-armhf-armhf-xl-rtds                                     fail    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow             pass    
 test-amd64-i386-xl-qemuu-debianhvm-amd64-shadow              pass    
 test-amd64-amd64-xl-shadow                                   pass    
 test-amd64-i386-xl-shadow                                    pass    
 test-amd64-amd64-libvirt-vhd                                 pass    
 test-armhf-armhf-xl-vhd                                      pass    


------------------------------------------------------------
sg-report-flight on osstest.test-lab.xenproject.org
logs: /home/logs/logs
images: /home/logs/images

Logs, config files, etc. are available at
    http://logs.test-lab.xenproject.org/osstest/logs

Explanation of these reports, and of osstest in general, is at
    http://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README.email;hb=master
    http://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README;hb=master

Test harness code can be found at
    http://xenbits.xen.org/gitweb?p=osstest.git;a=summary

broken-job test-armhf-armhf-xl-xsm broken

Not pushing.

------------------------------------------------------------
commit 1052a2168ed62999b35319a435c16da884f5f0e2
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 25 14:48:57 2018 +0200

    x86: fix slow int80 path after XPTI additions
    
    For the int80 slow path to jump to handle_exception_saved, %r14 needs to
    be set up suitably for XPTI purposes. This is because of the difference
    in nature between the int80 path (which is synchronous WRT guest
    actions) and the exception path which is potentially asynchronous.
    
    This is XSA-259.
    
    Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: 5a5c368faf45ced8a8c6235f4fbf5cdb38ec939f
    master date: 2018-04-25 14:39:41 +0200

commit a2f02dfdcbc3dc5afc3ae4eb24e5683f5c4abe1a
Author: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Date:   Wed Apr 25 14:48:41 2018 +0200

    libxl: Specify format of inserted cdrom
    
    Without this extra parameter on the QMP command, QEMU will guess the
    format of the new file.
    
    This is XSA-258.
    
    Reported-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    master commit: d8f65e68a7c1047fad97206a6282c281247fadc2
    master date: 2018-04-25 14:38:47 +0200

commit 501718a68c04086ba1984563eccf0b18f82d5c0c
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Apr 18 16:51:24 2018 +0200

    x86/msr: Correct the emulation behaviour of MSR_PRED_CMD
    
    Experimentally, the behaviour of reserved bits in MSR_PRED_CMD changed 
between
    beta and production microcode, and now raises a #GP fault for set reserved
    bits.  The AMD spec for future hardware also specifies this behaviour, and 
it
    is the more sensible behaviour to implement.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    
    x86/msr: further correct the emulation behaviour of MSR_PRED_CMD
    
    Following commit a6aa678fa3 ("x86/msr: Correct the emulation behaviour
    of MSR_PRED_CMD") we may end up writing the low bit with the wrong
    value. While it's unlikely for a guest to want to write zero there, we
    should still permit (this without incurring the overhead of an actual
    barrier). Correcting this right away will also help whenever further
    bits in the MSR might become defined.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: a6aa678fa380e9369cc44701a181142322b3a4b0
    master date: 2018-04-16 13:18:19 +0100
    master commit: a996273d1fc10d14598985703227bfa35a91f681
    master date: 2018-04-18 11:16:37 +0200

commit 957ff3006e52cb185eb577ab1843bb25121c9284
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Apr 18 16:50:55 2018 +0200

    x86/VT-x: Fix determination of EFER.LMA in vmcs_dump_vcpu()
    
    The LMA setting comes from the entry controls.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>
    master commit: 82540b66ceb9318aa185f2488cbbbe479694de8f
    master date: 2018-04-11 11:06:55 +0100

commit 1e9ac23c93e690c4e4626590242e91dbc75698bd
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 18 16:50:25 2018 +0200

    x86/HVM: suppress I/O completion for port output
    
    We don't break up port requests in case they cross emulation entity
    boundaries, and a write to an I/O port is necessarily the last
    operation of an instruction instance, so there's no need to re-invoke
    the full emulation path upon receiving the result from an external
    emulator.
    
    In case we want to properly split port accesses in the future, this
    change will need to be reverted, as it would prevent things working
    correctly when e.g. the first part needs to go to an external emulator,
    while the second part is to be handled internally.
    
    While this addresses the reported problem of Windows paging out the
    buffer underneath an in-process REP OUTS, it does not address the wider
    problem of the re-issued insn (to the insn emulator) being prone to
    raise an exception (#PF) during a replayed, previously successful memory
    access (we only record prior MMIO accesses).
    
    Leaving aside the problem tried to be worked around here, I think the
    performance aspect alone is a good reason to change the behavior.
    
    Also take the opportunity and change bool_t -> bool as
    hvm_vcpu_io_need_completion()'s return type.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
    master commit: 91afb8139f954a06e564d4915bc7d6a8575e2812
    master date: 2018-04-11 10:42:24 +0200

commit 95befc64f106c8b5648f1f5b192112bd9c35b90e
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Apr 18 16:49:46 2018 +0200

    x86/pv: Fix up erroneous segments for 32bit syscall entry
    
    The existing FLAT_KERNEL_SS expands to the correct value, 0xe02b, but is the
    wrong constant to use.  Switch to FLAT_USER_SS32.
    
    For compat domains however, the reported values are entirely bogus.
    FLAT_USER_SS32 (value 0xe02b) is FLAT_RING3_CS in the 32bit ABI, while
    FLAT_USER_CS32 (value 0xe023) is FLAT_RING1_DS with an RPL of 3.
    
    The guests SYSCALL callback is invoked with a broken iret frame, and if left
    unmodified by the guest, will fail on the way back out when Xen's iret tries
    to load a code segment into %ss.
    
    In practice, this is only a problem for 32bit PV guests on AMD hardware, as
    Intel hardware doesn't permit the SYSCALL instruction outside of 64bit mode.
    
    This appears to have been broken ever since 64bit support was added to Xen,
    and has gone unnoticed because Linux doesn't use SYSCALL in 32bit builds.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: dba899de14989b3dff78009404ed891da7fefdc1
    master date: 2018-04-09 13:12:18 +0100

commit 372583c2dd4363446cb5788a865138b9aca54767
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 18 16:49:21 2018 +0200

    x86/XPTI: reduce .text.entry
    
    This exposes less code pieces and at the same time reduces the range
    covered from slightly above 3 pages to a little below 2 of them.
    
    The code being moved is unchanged, except for the removal of trailing
    blanks, insertion of blanks between operands, and a pointless q suffix
    from "retq".
    
    A few more small pieces could be moved, but it seems better to me to
    leave them where they are to not make it overly hard to follow code
    paths.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: 454efb2a31b64b98e3dd55c083ce41b87375faa6
    master date: 2018-04-05 15:48:23 +0100

commit 202aaf8a584a76170a271e22fb41a4d9e3258239
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 18 16:48:51 2018 +0200

    x86: log XPTI enabled status
    
    At the same time also report the state of the two defined
    ARCH_CAPABILITIES MSR bits. To avoid further complicating the
    conditional around that printk(), drop it (it's a debug level one only
    anyway).
    
    Issue the main message without any XENLOG_*, and also drop XENLOG_INFO
    from the respective BTI message, to make sure they're visible at default
    log level also in release builds.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Tested-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    master commit: 442b303cdaf7d774c0be8096fe5dbab68701abd3
    master date: 2018-04-05 15:48:23 +0100

commit e4e96320fcd136dcd6de5732057b1082d77b0881
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 18 16:48:15 2018 +0200

    x86: disable XPTI when RDCL_NO
    
    Use the respective ARCH_CAPABILITIES MSR bit, but don't expose the MSR
    to guests yet.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Tested-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    master commit: bee0732d2066691d8204e418d10110930ee4d4f8
    master date: 2018-04-05 15:48:23 +0100

commit a753be1b4c20f1be96c97dce5dac33d6bd304c13
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Apr 18 16:47:39 2018 +0200

    x86/pv: Fix the handing of writes to %dr7
    
    c/s 65e35549 "x86/PV: support data breakpoint extension registers"
    accidentally broke the handing of writes.  The call to activate_debugregs()
    doesn't write %dr7 as v->arch.debugreg[7] hasn't been updated yet, and the
    break skips the intended write to %dr7.
    
    Remove the break, causing execution to hit the write_debugreg(7, value); in
    context at the bottom of the hunk, which in turn causes hardware to be 
updated
    appropriately.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: adf8feba1afa040f3a84a82953e18af02060884a
    master date: 2018-03-29 15:12:21 +0100

commit 8f9846f791d2f248651f5fd56724b4c3fabd9d9b
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 18 16:45:56 2018 +0200

    x86: further CPUID handling adjustments
    
    In particular for Dom0 we need to make sure to surface Spectre related
    feature flags.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
(qemu changes not included)

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