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[Xen-devel] [xen-4.7-testing test] 136841: regressions - FAIL

flight 136841 xen-4.7-testing real [real]

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 build-amd64                   6 xen-build                fail REGR. vs. 133596
 build-i386-prev               6 xen-build                fail REGR. vs. 133596
 build-i386-xsm                6 xen-build                fail REGR. vs. 133596
 build-amd64-prev              6 xen-build                fail REGR. vs. 133596
 build-i386                    6 xen-build                fail REGR. vs. 133596
 build-amd64-xsm               6 xen-build                fail REGR. vs. 133596
 build-arm64                   6 xen-build                fail REGR. vs. 133596
 build-arm64-xsm               6 xen-build                fail REGR. vs. 133596
 build-armhf                   6 xen-build                fail REGR. vs. 133596

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-qemuu-nested-intel  1 build-check(1)              blocked n/a
 test-amd64-i386-xl-qemut-ws16-amd64  1 build-check(1)              blocked n/a
 test-amd64-amd64-xl-qemut-win7-amd64  1 build-check(1)             blocked n/a
 test-amd64-i386-xl-qemut-win7-amd64  1 build-check(1)              blocked n/a
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow  1 build-check(1) blocked n/a
 test-amd64-amd64-xl-qemuu-debianhvm-i386-xsm  1 build-check(1)     blocked n/a
 test-amd64-amd64-xl-shadow    1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt-pair  1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-3        1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-1        1 build-check(1)               blocked  n/a
 build-amd64-libvirt           1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-multivcpu  1 build-check(1)               blocked  n/a
 test-amd64-amd64-libvirt-vhd  1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-qemut-win10-i386  1 build-check(1)             blocked n/a
 test-amd64-amd64-xl-qemuu-ovmf-amd64  1 build-check(1)             blocked n/a
 test-amd64-amd64-xl-qemuu-win7-amd64  1 build-check(1)             blocked n/a
 test-amd64-i386-xl            1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemut-debianhvm-amd64  1 build-check(1)         blocked n/a
 test-amd64-amd64-migrupgrade  1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl           1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-arndale   1 build-check(1)               blocked  n/a
 test-amd64-i386-qemut-rhel6hvm-intel  1 build-check(1)             blocked n/a
 test-amd64-amd64-libvirt      1 build-check(1)               blocked  n/a
 test-amd64-i386-migrupgrade   1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-credit2   1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-qemuu-win10-i386  1 build-check(1)             blocked n/a
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 1 build-check(1) blocked n/a
 test-amd64-i386-xl-qemut-debianhvm-i386-xsm  1 build-check(1)      blocked n/a
 test-amd64-i386-xl-qemuu-ovmf-amd64  1 build-check(1)              blocked n/a
 test-amd64-i386-qemuu-rhel6hvm-intel  1 build-check(1)             blocked n/a
 test-armhf-armhf-libvirt-raw  1 build-check(1)               blocked  n/a
 test-amd64-i386-qemuu-rhel6hvm-amd  1 build-check(1)               blocked n/a
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 1 build-check(1) blocked 
 test-amd64-amd64-xl           1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-vhd       1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-credit2   1 build-check(1)               blocked  n/a
 test-amd64-i386-freebsd10-i386  1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-5        1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemuu-ws16-amd64  1 build-check(1)              blocked n/a
 test-arm64-arm64-xl-xsm       1 build-check(1)               blocked  n/a
 build-armhf-libvirt           1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl           1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-multivcpu  1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-cubietruck  1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-raw        1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt       1 build-check(1)               blocked  n/a
 test-amd64-amd64-pygrub       1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-qemut-ws16-amd64  1 build-check(1)             blocked n/a
 test-amd64-i386-qemut-rhel6hvm-amd  1 build-check(1)               blocked n/a
 test-amd64-amd64-xl-qemut-debianhvm-i386-xsm  1 build-check(1)     blocked n/a
 test-armhf-armhf-libvirt      1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 1 build-check(1) blocked n/a
 test-armhf-armhf-xl-credit1   1 build-check(1)               blocked  n/a
 test-amd64-i386-pair          1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-xsm        1 build-check(1)               blocked  n/a
 test-amd64-i386-freebsd10-amd64  1 build-check(1)               blocked  n/a
 test-amd64-amd64-pair         1 build-check(1)               blocked  n/a
 test-amd64-amd64-libvirt-xsm  1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemuu-win10-i386  1 build-check(1)              blocked n/a
 test-amd64-amd64-xl-qemuu-ws16-amd64  1 build-check(1)             blocked n/a
 test-arm64-arm64-libvirt-xsm  1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-credit1   1 build-check(1)               blocked  n/a
 test-amd64-amd64-i386-pvgrub  1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt-xsm   1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-xsm       1 build-check(1)               blocked  n/a
 test-amd64-amd64-qemuu-nested-amd  1 build-check(1)               blocked  n/a
 build-arm64-libvirt           1 build-check(1)               blocked  n/a
 test-amd64-amd64-amd64-pvgrub  1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemuu-debianhvm-i386-xsm  1 build-check(1)      blocked n/a
 test-amd64-i386-xl-shadow     1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-4        1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemuu-win7-amd64  1 build-check(1)              blocked n/a
 test-armhf-armhf-xl-rtds      1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm 1 build-check(1) blocked 
 test-amd64-i386-xl-qemuu-debianhvm-amd64  1 build-check(1)         blocked n/a
 test-amd64-i386-xl-qemut-win10-i386  1 build-check(1)              blocked n/a
 test-amd64-amd64-xl-qemuu-debianhvm-amd64  1 build-check(1)        blocked n/a
 test-amd64-amd64-xl-credit1   1 build-check(1)               blocked  n/a
 build-i386-libvirt            1 build-check(1)               blocked  n/a
 test-amd64-amd64-libvirt-pair  1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-qemut-debianhvm-amd64  1 build-check(1)        blocked n/a
 test-amd64-amd64-xl-qcow2     1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-rtds      1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-credit2   1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-2        1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemuu-debianhvm-amd64-shadow  1 build-check(1)  blocked n/a

version targeted for testing:
 xen                  206d3f65f7dedc31a0aec2d50651df06a1de8b2c
baseline version:
 xen                  88f936d44d2e34ca2d0827cc828ea9d3aeef3fe8

Last test of basis   133596  2019-03-05 15:06:04 Z   80 days
Failing since        135434  2019-04-29 15:36:10 Z   25 days   13 attempts
Testing same since   136428  2019-05-17 06:49:38 Z    7 days    4 attempts

People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  Christian Lindig <christian.lindig@xxxxxxxxxx>
  Cédric Bosdonnat <cbosdonnat@xxxxxxxx>
  Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Quan Xu <xuquan8@xxxxxxxxxx>
  Wei Liu <wei.liu2@xxxxxxxxxx>

 build-amd64-xsm                                              fail    
 build-arm64-xsm                                              fail    
 build-i386-xsm                                               fail    
 build-amd64-xtf                                              pass    
 build-amd64                                                  fail    
 build-arm64                                                  fail    
 build-armhf                                                  fail    
 build-i386                                                   fail    
 build-amd64-libvirt                                          blocked 
 build-arm64-libvirt                                          blocked 
 build-armhf-libvirt                                          blocked 
 build-i386-libvirt                                           blocked 
 build-amd64-prev                                             fail    
 build-i386-prev                                              fail    
 build-amd64-pvops                                            pass    
 build-arm64-pvops                                            pass    
 build-armhf-pvops                                            pass    
 build-i386-pvops                                             pass    
 test-xtf-amd64-amd64-1                                       blocked 
 test-xtf-amd64-amd64-2                                       blocked 
 test-xtf-amd64-amd64-3                                       blocked 
 test-xtf-amd64-amd64-4                                       blocked 
 test-xtf-amd64-amd64-5                                       blocked 
 test-amd64-amd64-xl                                          blocked 
 test-arm64-arm64-xl                                          blocked 
 test-armhf-armhf-xl                                          blocked 
 test-amd64-i386-xl                                           blocked 
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm           blocked 
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm            blocked 
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm        blocked 
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm         blocked 
 test-amd64-amd64-xl-qemut-debianhvm-i386-xsm                 blocked 
 test-amd64-i386-xl-qemut-debianhvm-i386-xsm                  blocked 
 test-amd64-amd64-xl-qemuu-debianhvm-i386-xsm                 blocked 
 test-amd64-i386-xl-qemuu-debianhvm-i386-xsm                  blocked 
 test-amd64-amd64-libvirt-xsm                                 blocked 
 test-arm64-arm64-libvirt-xsm                                 blocked 
 test-amd64-i386-libvirt-xsm                                  blocked 
 test-amd64-amd64-xl-xsm                                      blocked 
 test-arm64-arm64-xl-xsm                                      blocked 
 test-amd64-i386-xl-xsm                                       blocked 
 test-amd64-amd64-qemuu-nested-amd                            blocked 
 test-amd64-i386-qemut-rhel6hvm-amd                           blocked 
 test-amd64-i386-qemuu-rhel6hvm-amd                           blocked 
 test-amd64-amd64-xl-qemut-debianhvm-amd64                    blocked 
 test-amd64-i386-xl-qemut-debianhvm-amd64                     blocked 
 test-amd64-amd64-xl-qemuu-debianhvm-amd64                    blocked 
 test-amd64-i386-xl-qemuu-debianhvm-amd64                     blocked 
 test-amd64-i386-freebsd10-amd64                              blocked 
 test-amd64-amd64-xl-qemuu-ovmf-amd64                         blocked 
 test-amd64-i386-xl-qemuu-ovmf-amd64                          blocked 
 test-amd64-amd64-xl-qemut-win7-amd64                         blocked 
 test-amd64-i386-xl-qemut-win7-amd64                          blocked 
 test-amd64-amd64-xl-qemuu-win7-amd64                         blocked 
 test-amd64-i386-xl-qemuu-win7-amd64                          blocked 
 test-amd64-amd64-xl-qemut-ws16-amd64                         blocked 
 test-amd64-i386-xl-qemut-ws16-amd64                          blocked 
 test-amd64-amd64-xl-qemuu-ws16-amd64                         blocked 
 test-amd64-i386-xl-qemuu-ws16-amd64                          blocked 
 test-armhf-armhf-xl-arndale                                  blocked 
 test-amd64-amd64-xl-credit1                                  blocked 
 test-arm64-arm64-xl-credit1                                  blocked 
 test-armhf-armhf-xl-credit1                                  blocked 
 test-amd64-amd64-xl-credit2                                  blocked 
 test-arm64-arm64-xl-credit2                                  blocked 
 test-armhf-armhf-xl-credit2                                  blocked 
 test-armhf-armhf-xl-cubietruck                               blocked 
 test-amd64-i386-freebsd10-i386                               blocked 
 test-amd64-amd64-xl-qemut-win10-i386                         blocked 
 test-amd64-i386-xl-qemut-win10-i386                          blocked 
 test-amd64-amd64-xl-qemuu-win10-i386                         blocked 
 test-amd64-i386-xl-qemuu-win10-i386                          blocked 
 test-amd64-amd64-qemuu-nested-intel                          blocked 
 test-amd64-i386-qemut-rhel6hvm-intel                         blocked 
 test-amd64-i386-qemuu-rhel6hvm-intel                         blocked 
 test-amd64-amd64-libvirt                                     blocked 
 test-armhf-armhf-libvirt                                     blocked 
 test-amd64-i386-libvirt                                      blocked 
 test-amd64-amd64-migrupgrade                                 blocked 
 test-amd64-i386-migrupgrade                                  blocked 
 test-amd64-amd64-xl-multivcpu                                blocked 
 test-armhf-armhf-xl-multivcpu                                blocked 
 test-amd64-amd64-pair                                        blocked 
 test-amd64-i386-pair                                         blocked 
 test-amd64-amd64-libvirt-pair                                blocked 
 test-amd64-i386-libvirt-pair                                 blocked 
 test-amd64-amd64-amd64-pvgrub                                blocked 
 test-amd64-amd64-i386-pvgrub                                 blocked 
 test-amd64-amd64-pygrub                                      blocked 
 test-amd64-amd64-xl-qcow2                                    blocked 
 test-armhf-armhf-libvirt-raw                                 blocked 
 test-amd64-i386-xl-raw                                       blocked 
 test-amd64-amd64-xl-rtds                                     blocked 
 test-armhf-armhf-xl-rtds                                     blocked 
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow             blocked 
 test-amd64-i386-xl-qemuu-debianhvm-amd64-shadow              blocked 
 test-amd64-amd64-xl-shadow                                   blocked 
 test-amd64-i386-xl-shadow                                    blocked 
 test-amd64-amd64-libvirt-vhd                                 blocked 
 test-armhf-armhf-xl-vhd                                      blocked 

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

Logs, config files, etc. are available at

Explanation of these reports, and of osstest in general, is at

Test harness code can be found at

Not pushing.

commit 206d3f65f7dedc31a0aec2d50651df06a1de8b2c
Author: Christian Lindig <christian.lindig@xxxxxxxxxx>
Date:   Wed Feb 27 10:33:42 2019 +0000

    tools/ocaml: Dup2 /dev/null to stdin in daemonize()
    Don't close stdin in daemonize() but dup2 /dev/null instead.  Otherwise, fd 0
    gets reused later:
      [root@idol ~]# ls -lav /proc/`pgrep xenstored`/fd
      total 0
      dr-x------ 2 root root  0 Feb 28 11:02 .
      dr-xr-xr-x 9 root root  0 Feb 27 15:59 ..
      lrwx------ 1 root root 64 Feb 28 11:02 0 -> /dev/xen/evtchn
      l-wx------ 1 root root 64 Feb 28 11:02 1 -> /dev/null
      l-wx------ 1 root root 64 Feb 28 11:02 2 -> /dev/null
      lrwx------ 1 root root 64 Feb 28 11:02 3 -> /dev/xen/privcmd
    Signed-off-by: Christian Lindig <christian.lindig@xxxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
    (cherry picked from commit 677e64dbe315343620c3b266e9eb16623b118038)
    (cherry picked from commit 4b72470175a592fb5c0a5d10ed505de73778e10f)
    (cherry picked from commit 5cfbc0ffd563a2ee3abfcce74eb3c20d82a7a035)
    (cherry picked from commit 3db28b0babfb3db7b5bbf9799da6884453290312)
    (cherry picked from commit d929136ca8e2a1a8cb7dfdd18f828574619e3953)

commit 50bdecaf018c57ec215827019ca21bf54bcea935
Author: Jan Beulich <JBeulich@xxxxxxxx>
Date:   Tue Jan 24 16:22:03 2017 +0000

    x86emul/test: don't use *_len symbols
    ... as they don't work as intended with -fPIC.
    I did prefer them over *_end ones at the time because older gcc would
    cause .L* symbols to be public, due to issuing .globl for all
    referenced externals. And labels at the end of instructions collide
    with the ones at the start of the next instruction, making disassembly
    harder to grok. Luckily recent gcc no longer issues those .globl
    directives, and hence .L* labels, staying local by default, no longer
    get in the way.
    Reported-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Tested-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    (cherry picked from commit 9315fa0ef736d1153c98ce42bff5853da5ec697f)

commit b205b6969f86d1f25e152ed0880cd3ee189b9358
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Dec 12 19:22:15 2018 +0000

    x86/spec-ctrl: Introduce options to control VERW flushing
    The Microarchitectural Data Sampling vulnerability is split into categories
    with subtly different properties:
     MLPDS - Microarchitectural Load Port Data Sampling
     MSBDS - Microarchitectural Store Buffer Data Sampling
     MFBDS - Microarchitectural Fill Buffer Data Sampling
     MDSUM - Microarchitectural Data Sampling Uncacheable Memory
    MDSUM is a special case of the other three, and isn't distinguished further.
    These issues pertain to three microarchitectural buffers.  The Load Ports, 
    Store Buffers and the Fill Buffers.  Each of these structures are flushed by
    the new enhanced VERW functionality, but the conditions under which flushing
    is necessary vary.
    For this concise overview of the issues and default logic, the abbreviations
    SP (Store Port), FB (Fill Buffer), LP (Load Port) and HT (Hyperthreading) 
    used for brevity:
     * Vulnerable hardware is divided into two categories - parts which suffer
       from SP only, and parts with any other combination of vulnerabilities.
     * SP only has an HT interaction when the thread goes idle, due to the 
       partitioning of resources.  LP and FB have HT interactions at all points,
       due to the competitive sharing of resources.  All issues potentially leak
       data across the return-to-guest transition.
     * The microcode which implements VERW flushing also extends MSR_FLUSH_CMD, 
       we don't need to do both on the HVM return-to-guest path.  However, the
       Knights range of processors are immune to L1TF (therefore have no
       MSR_FLUSH_CMD), but are vulnerable to MDS, so do require VERW on the HVM
    Note that we deliberately support mds=1 even without MD_CLEAR in case the
    microcode has been updated but the feature bit not exposed.
    This is part of XSA-297, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, 
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit 3c04c258ab40405a74e194d9889a4cbc7abe94b4)

commit 8e7450f070927f8397c32fa4ec60cf58f876e984
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Dec 12 19:22:15 2018 +0000

    x86/spec-ctrl: Infrastructure to use VERW to flush pipeline buffers
    Three synthetic features are introduced, as we need individual control of
    each, depending on circumstances.  A later change will enable them at
    appropriate points.
    The verw_sel field doesn't strictly need to live in struct cpu_info.  It 
    there because there is a convenient hole it can fill, and it reduces the
    complexity of the SPEC_CTRL_EXIT_TO_{PV,HVM} assembly by avoiding the need 
    any temporary stack maintenance.
    This is part of XSA-297, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, 
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit 548a932ac786d6bf3584e4b54f2ab993e1117710)

commit e69793d6ba265bb52c0cdeec609c79c9efe5ad94
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Sep 12 14:36:00 2018 +0100

    x86/spec-ctrl: CPUID/MSR definitions for Microarchitectural Data Sampling
    The MD_CLEAR feature can be automatically offered to guests.  No
    infrastructure is needed in Xen to support the guest making use of it.
    This is part of XSA-297, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, 
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit d4f6116c080dc013cd1204c4d8ceb95e5f278689)

commit b162f9593166fa2053d42df6e73bf4bd8d460d71
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Sep 12 14:36:00 2018 +0100

    x86/spec-ctrl: Misc non-functional cleanup
     * Identify BTI in the spec_ctrl_{enter,exit}_idle() comments, as other
       mitigations will shortly appear.
     * Use alternative_input() and cover the lack of memory cobber with a 
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit 9b62eba6c429c327e1507816bef403ccc87357ae)

commit 3514511523d4a655bf8df462b8cfff1eb6f37466
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Fri Apr 5 13:26:30 2019 +0100

    x86/boot: Detect the firmware SMT setting correctly on Intel hardware
    While boot_cpu_data.x86_num_siblings is an accurate value to use on AMD
    hardware, it isn't on Intel when the user has disabled Hyperthreading in the
    firmware.  As a result, a user which has chosen to disable HT still gets
    nagged on L1TF-vulnerable hardware when they haven't chosen an explicit
    smt=<bool> setting.
    Make use of the largely-undocumented MSR_INTEL_CORE_THREAD_COUNT which in
    practice exists since Nehalem, when booting on real hardware.  Fall back to
    using the ACPI table APIC IDs.
    While adjusting this logic, fix a latent bug in amd_get_topology().  The
    thread count field in CPUID.0x8000001e.ebx is documented as 8 bits wide,
    rather than 2 bits wide.
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit b12fec4a125950240573ea32f65c61fb9afa74c3)

commit 621b66f818a239316619ef185278d50b9b05be21
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Fri Apr 5 12:26:30 2019 +0000

    x86/msr: Definitions for MSR_INTEL_CORE_THREAD_COUNT
    This is a model specific register which details the current configuration
    cores and threads in the package.  Because of how Hyperthread and Core
    configuration works works in firmware, the MSR it is de-facto constant and
    will remain unchanged until the next system reset.
    It is a read only MSR (so unilaterally reject writes), but for now retain 
    leaky-on-read properties.  Further CPUID/MSR work is required before we can
    start virtualising a consistent topology to the guest, and retaining the old
    behaviour is the safest course of action.
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit d4120936bcd1695faf5b575f1259c58e31d2b18b)

commit b68cedbe60fd206f299e6ca6a85d363d06682c3b
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Wed Sep 12 14:36:00 2018 +0100

    x86/spec-ctrl: Reposition the XPTI command line parsing logic
    It has ended up in the middle of the mitigation calculation logic.  Move it 
    be beside the other command line parsing.
    No functional change.
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit c2c2bb0d60c642e64a5243a79c8b1548ffb7bc5b)

commit dcf96335d0e416e481c75eb3bc17f3fb80231b47
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Mon Mar 18 17:08:25 2019 +0100

    x86/tsx: Implement controls for RTM force-abort mode
    The CPUID bit and MSR are deliberately not exposed to guests, because they
    won't exist on newer processors.  As vPMU isn't security supported, the
    misbehaviour of PCR3 isn't expected to impact production deployments.
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: 6be613f29b4205349275d24367bd4c82fb2960dd
    master date: 2019-03-12 17:05:21 +0000

commit 7c8db58d3739c805f4c0f773b65157f306b00c2a
Author: Cédric Bosdonnat <cbosdonnat@xxxxxxxx>
Date:   Thu Nov 10 10:23:31 2016 +0100

    Fix misleading indentation warnings
    Gcc6 build reports misleading indentation as warnings. Fix a few
    warnings in stubdom.
    Signed-off-by: Cédric Bosdonnat <cbosdonnat@xxxxxxxx>
    Acked-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
    Acked-by: Quan Xu <xuquan8@xxxxxxxxxx>
    Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    (cherry picked from commit 9fdffbbab3ada427bac07076f042f0265e5ae05f)

commit 7835644d5141d0f28ec221eda40fcbf2fc03be23
Author: Wei Liu <wei.liu2@xxxxxxxxxx>
Date:   Wed Nov 28 17:43:33 2018 +0000

    tools/firmware: update OVMF Makefile, when necessary
    [ This is two commits from master aka staging-4.12: ]
    OVMF has become dependent on OpenSSL, which is included as a
    submodule.  Initialise submodules before building.
    Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Reviewed-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    (cherry picked from commit b16281870e06f5f526029a4e69634a16dc38e8e4)
    tools: only call git when necessary in OVMF Makefile
    Users may choose to export a snapshot of OVMF and build it
    with xen.git supplied ovmf-makefile. In that case we don't
    need to call `git submodule`.
    Fixes b16281870e.
    Reported-by: Olaf Hering <olaf@xxxxxxxxx>
    Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Reviewed-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
    (cherry picked from commit 68292c94a60eab24514ab4a8e4772af24dead807)
    (cherry picked from commit e983e8ae84efd5e43045a3d20a820f13cb4a75bf)
    (cherry picked from commit 5a81de4c6b6036974f29e2330a493f23a8f0c1f0)
    (cherry picked from commit 63d9330ba9fdec7c8e9346e6d85360747d61c947)
    (cherry picked from commit e9d860f1f657a198d990bdae3e295001bd19223c)
(qemu changes not included)

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