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[xen-unstable test] 159109: trouble: blocked/broken

flight 159109 xen-unstable real [real]

Failures and problems with tests :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 build-amd64                     <job status>                 broken
 build-amd64-prev                <job status>                 broken
 build-amd64-pvops               <job status>                 broken
 build-amd64-xsm                 <job status>                 broken
 build-amd64-xtf                 <job status>                 broken
 build-arm64                     <job status>                 broken
 build-arm64-pvops               <job status>                 broken
 build-arm64-xsm                 <job status>                 broken
 build-armhf                     <job status>                 broken
 build-armhf-pvops               <job status>                 broken
 build-i386                      <job status>                 broken
 build-i386-prev                 <job status>                 broken
 build-i386-pvops                <job status>                 broken
 build-i386-xsm                  <job status>                 broken
 build-amd64-xtf               4 host-install(4)        broken REGR. vs. 159036
 build-amd64                   4 host-install(4)        broken REGR. vs. 159036
 build-amd64-pvops             4 host-install(4)        broken REGR. vs. 159036
 build-amd64-prev              4 host-install(4)        broken REGR. vs. 159036
 build-i386                    4 host-install(4)        broken REGR. vs. 159036
 build-i386-xsm                4 host-install(4)        broken REGR. vs. 159036
 build-i386-prev               4 host-install(4)        broken REGR. vs. 159036
 build-i386-pvops              4 host-install(4)        broken REGR. vs. 159036
 build-arm64-pvops             4 host-install(4)        broken REGR. vs. 159036
 build-arm64                   4 host-install(4)        broken REGR. vs. 159036
 build-arm64-xsm               4 host-install(4)        broken REGR. vs. 159036
 build-amd64-xsm               4 host-install(4)        broken REGR. vs. 159036
 build-armhf-pvops             4 host-install(4)        broken REGR. vs. 159036
 build-armhf                   4 host-install(4)        broken REGR. vs. 159036

Tests which did not succeed, but are not blocking:
 test-amd64-i386-qemuu-rhel6hvm-intel  1 build-check(1)             blocked n/a
 test-amd64-i386-xl            1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-pvshim     1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-qemut-debianhvm-amd64  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-qemut-stubdom-debianhvm-amd64-xsm 1 build-check(1) blocked 
 test-amd64-i386-xl-qemut-win7-amd64  1 build-check(1)              blocked n/a
 test-amd64-i386-xl-qemut-ws16-amd64  1 build-check(1)              blocked n/a
 test-amd64-i386-xl-qemuu-debianhvm-amd64  1 build-check(1)         blocked n/a
 test-amd64-i386-xl-qemuu-dmrestrict-amd64-dmrestrict 1 build-check(1) blocked 
 test-amd64-i386-xl-qemuu-ovmf-amd64  1 build-check(1)              blocked n/a
 test-amd64-i386-xl-qemuu-win7-amd64  1 build-check(1)              blocked n/a
 test-amd64-i386-xl-qemuu-ws16-amd64  1 build-check(1)              blocked n/a
 test-amd64-i386-xl-raw        1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-shadow     1 build-check(1)               blocked  n/a
 test-amd64-i386-xl-xsm        1 build-check(1)               blocked  n/a
 test-arm64-arm64-examine      1 build-check(1)               blocked  n/a
 test-arm64-arm64-libvirt-xsm  1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl           1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-credit1   1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-credit2   1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-seattle   1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-thunderx  1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-xsm       1 build-check(1)               blocked  n/a
 test-armhf-armhf-examine      1 build-check(1)               blocked  n/a
 test-armhf-armhf-libvirt      1 build-check(1)               blocked  n/a
 test-armhf-armhf-libvirt-raw  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-amd64-xl-rtds      1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-qemuu-ws16-amd64  1 build-check(1)             blocked n/a
 test-amd64-amd64-xl-qemuu-win7-amd64  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-dmrestrict-amd64-dmrestrict 1 build-check(1) blocked 
 test-amd64-amd64-xl-qemuu-debianhvm-i386-xsm  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-amd64  1 build-check(1)        blocked n/a
 test-amd64-amd64-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-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 1 build-check(1) blocked 
 test-amd64-amd64-xl-qemut-debianhvm-i386-xsm  1 build-check(1)     blocked n/a
 build-amd64-libvirt           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-pvshim    1 build-check(1)               blocked  n/a
 build-arm64-libvirt           1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-pvhv2-intel  1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-pvhv2-amd  1 build-check(1)               blocked  n/a
 build-armhf-libvirt           1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-multivcpu  1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-credit2   1 build-check(1)               blocked  n/a
 build-i386-libvirt            1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-credit1   1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl           1 build-check(1)               blocked  n/a
 test-amd64-amd64-amd64-pvgrub  1 build-check(1)               blocked  n/a
 test-amd64-amd64-dom0pvh-xl-amd  1 build-check(1)               blocked  n/a
 test-amd64-amd64-qemuu-nested-intel  1 build-check(1)              blocked n/a
 test-amd64-amd64-dom0pvh-xl-intel  1 build-check(1)               blocked  n/a
 test-amd64-amd64-examine      1 build-check(1)               blocked  n/a
 test-amd64-amd64-qemuu-nested-amd  1 build-check(1)               blocked  n/a
 test-amd64-amd64-i386-pvgrub  1 build-check(1)               blocked  n/a
 test-amd64-amd64-libvirt      1 build-check(1)               blocked  n/a
 test-amd64-amd64-qemuu-freebsd12-amd64  1 build-check(1)           blocked n/a
 test-amd64-amd64-libvirt-pair  1 build-check(1)               blocked  n/a
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 1 build-check(1) blocked n/a
 test-amd64-amd64-qemuu-freebsd11-amd64  1 build-check(1)           blocked n/a
 test-amd64-amd64-libvirt-vhd  1 build-check(1)               blocked  n/a
 test-amd64-amd64-libvirt-xsm  1 build-check(1)               blocked  n/a
 test-amd64-amd64-pygrub       1 build-check(1)               blocked  n/a
 test-amd64-amd64-livepatch    1 build-check(1)               blocked  n/a
 test-amd64-amd64-migrupgrade  1 build-check(1)               blocked  n/a
 test-amd64-amd64-pair         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-qemuu-debianhvm-amd64-shadow  1 build-check(1)  blocked n/a
 test-amd64-amd64-xl-shadow    1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-xsm       1 build-check(1)               blocked  n/a
 test-amd64-coresched-amd64-xl  1 build-check(1)               blocked  n/a
 test-amd64-coresched-i386-xl  1 build-check(1)               blocked  n/a
 test-amd64-i386-examine       1 build-check(1)               blocked  n/a
 test-amd64-i386-freebsd10-amd64  1 build-check(1)               blocked  n/a
 test-amd64-i386-freebsd10-i386  1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt       1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt-pair  1 build-check(1)               blocked  n/a
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 1 build-check(1) blocked n/a
 test-amd64-i386-libvirt-xsm   1 build-check(1)               blocked  n/a
 test-amd64-i386-livepatch     1 build-check(1)               blocked  n/a
 test-amd64-i386-migrupgrade   1 build-check(1)               blocked  n/a
 test-amd64-i386-pair          1 build-check(1)               blocked  n/a
 test-amd64-i386-qemut-rhel6hvm-amd  1 build-check(1)               blocked n/a
 test-amd64-i386-qemut-rhel6hvm-intel  1 build-check(1)             blocked n/a
 test-amd64-i386-qemuu-rhel6hvm-amd  1 build-check(1)               blocked n/a
 test-armhf-armhf-xl-credit1   1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-credit2   1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-cubietruck  1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-multivcpu  1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-rtds      1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-vhd       1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-1        1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-2        1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-3        1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-4        1 build-check(1)               blocked  n/a
 test-xtf-amd64-amd64-5        1 build-check(1)               blocked  n/a

version targeted for testing:
 xen                  ca82d3fecc93745ee17850a609ac7772bd7c8bf7
baseline version:
 xen                  ff522e2e9163b27fe4d80ba55c18408f9b1f1cb7

Last test of basis   159036  2021-02-05 08:46:54 Z    2 days
Testing same since   159077  2021-02-06 11:11:30 Z    1 days    2 attempts

People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
  Ian Jackson <iwj@xxxxxxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Michał Leszczyński <michal.leszczynski@xxxxxxx>
  Roger Pau Monne <roger.pau@xxxxxxxxxx>
  Roger Pau Monné <roger.pau@xxxxxxxxxx>
  Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>

 build-amd64-xsm                                              broken  
 build-arm64-xsm                                              broken  
 build-i386-xsm                                               broken  
 build-amd64-xtf                                              broken  
 build-amd64                                                  broken  
 build-arm64                                                  broken  
 build-armhf                                                  broken  
 build-i386                                                   broken  
 build-amd64-libvirt                                          blocked 
 build-arm64-libvirt                                          blocked 
 build-armhf-libvirt                                          blocked 
 build-i386-libvirt                                           blocked 
 build-amd64-prev                                             broken  
 build-i386-prev                                              broken  
 build-amd64-pvops                                            broken  
 build-arm64-pvops                                            broken  
 build-armhf-pvops                                            broken  
 build-i386-pvops                                             broken  
 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-amd64-coresched-amd64-xl                                blocked 
 test-arm64-arm64-xl                                          blocked 
 test-armhf-armhf-xl                                          blocked 
 test-amd64-i386-xl                                           blocked 
 test-amd64-coresched-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-amd64-xl-pvhv2-amd                                blocked 
 test-amd64-i386-qemut-rhel6hvm-amd                           blocked 
 test-amd64-i386-qemuu-rhel6hvm-amd                           blocked 
 test-amd64-amd64-dom0pvh-xl-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-qemuu-freebsd11-amd64                       blocked 
 test-amd64-amd64-qemuu-freebsd12-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-amd64-xl-qemuu-dmrestrict-amd64-dmrestrict        blocked 
 test-amd64-i386-xl-qemuu-dmrestrict-amd64-dmrestrict         blocked 
 test-amd64-amd64-examine                                     blocked 
 test-arm64-arm64-examine                                     blocked 
 test-armhf-armhf-examine                                     blocked 
 test-amd64-i386-examine                                      blocked 
 test-amd64-i386-freebsd10-i386                               blocked 
 test-amd64-amd64-qemuu-nested-intel                          blocked 
 test-amd64-amd64-xl-pvhv2-intel                              blocked 
 test-amd64-i386-qemut-rhel6hvm-intel                         blocked 
 test-amd64-i386-qemuu-rhel6hvm-intel                         blocked 
 test-amd64-amd64-dom0pvh-xl-intel                            blocked 
 test-amd64-amd64-libvirt                                     blocked 
 test-armhf-armhf-libvirt                                     blocked 
 test-amd64-i386-libvirt                                      blocked 
 test-amd64-amd64-livepatch                                   blocked 
 test-amd64-i386-livepatch                                    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-xl-pvshim                                   blocked 
 test-amd64-i386-xl-pvshim                                    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-arm64-arm64-xl-seattle                                  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-arm64-arm64-xl-thunderx                                 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

broken-job build-amd64 broken
broken-job build-amd64-prev broken
broken-job build-amd64-pvops broken
broken-job build-amd64-xsm broken
broken-job build-amd64-xtf broken
broken-job build-arm64 broken
broken-job build-arm64-pvops broken
broken-job build-arm64-xsm broken
broken-job build-armhf broken
broken-job build-armhf-pvops broken
broken-job build-i386 broken
broken-job build-i386-prev broken
broken-job build-i386-pvops broken
broken-job build-i386-xsm broken
broken-step build-amd64-xtf host-install(4)
broken-step build-amd64 host-install(4)
broken-step build-amd64-pvops host-install(4)
broken-step build-amd64-prev host-install(4)
broken-step build-i386 host-install(4)
broken-step build-i386-xsm host-install(4)
broken-step build-i386-prev host-install(4)
broken-step build-i386-pvops host-install(4)
broken-step build-arm64-pvops host-install(4)
broken-step build-arm64 host-install(4)
broken-step build-arm64-xsm host-install(4)
broken-step build-amd64-xsm host-install(4)
broken-step build-armhf-pvops host-install(4)
broken-step build-armhf host-install(4)

Not pushing.

commit ca82d3fecc93745ee17850a609ac7772bd7c8bf7
Author: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
Date:   Sat Jan 30 08:36:37 2021 -0500

    x86/vm_event: add response flag to reset vmtrace buffer
    Allow resetting the vmtrace buffer in response to a vm_event. This can be 
    to optimize a use-case where detecting a looped vmtrace buffer is important.
    Signed-off-by: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit c5866ab93167a73a8d4d85b844edf4aa364a1aaa
Author: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
Date:   Mon Jan 18 12:46:37 2021 -0500

    x86/vm_event: Carry the vmtrace buffer position in vm_event
    Add vmtrace_pos field to x86 regs in vm_event. Initialized to ~0 if
    vmtrace is not in use.
    Signed-off-by: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 9744611991a042e9aea348c5721b80cc2101c7e5
Author: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
Date:   Fri Sep 11 20:14:00 2020 +0200

    xen/vmtrace: support for VM forks
    Implement vmtrace_reset_pt function. Properly set IPT
    state for VM forks.
    Signed-off-by: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 88dd8389dd2c9442729e9d96a4febaf38cd822e3
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Tue Jun 16 15:35:07 2020 +0200

    tools/misc: Add xen-vmtrace tool
    Add an demonstration tool that uses xc_vmtrace_* calls in order
    to manage external IPT monitoring for DomU.
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 53aaa792fdebcf131983d45ee8e3d09bd0740c71
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Tue Jun 16 15:33:25 2020 +0200

    tools/libxc: Add xc_vmtrace_* functions
    Add functions in libxc that use the new XEN_DOMCTL_vmtrace interface.
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 1cee4bd97c88633c4a39f56f6722be0727c9ea8f
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Sun Jun 28 23:48:09 2020 +0200

    xen/domctl: Add XEN_DOMCTL_vmtrace_op
    Implement an interface to configure and control tracing operations.  Reuse 
    existing SETDEBUGGING flask vector rather than inventing a new one.
    Userspace using this interface is going to need platform specific knowledge
    anyway to interpret the contents of the trace buffer.  While some operations
    (e.g. enable/disable) can reasonably be generic, others cannot.  Provide an
    explicitly-platform specific pair of get/set operations to reduce API churn 
    new options get added/enabled.
    For the VMX specific Processor Trace implementation, tolerate reading and
    modifying a safe subset of bits in CTL, STATUS and OUTPUT_MASK.  This 
    userspace to control the content which gets logged, but prevents 
    of details such as the position/size of the output buffer.
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 71cb03f03ce309e8cc1dacd18aa383ccea6af231
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Tue Jun 16 15:20:18 2020 +0200

    x86/vmx: Add Intel Processor Trace support
    Add CPUID/MSR enumeration details for Processor Trace.  For now, we will 
    support its use inside VMX operation.  Fill in the vmtrace_available boolean
    to activate the newly introduced common infrastructure for allocating trace
    For now, Processor Trace is going to be operated in Single Output mode 
    the guests back.  Add the MSRs to struct vcpu_msrs, and set up the buffer
    limit in vmx_init_ipt() as it is fixed for the lifetime of the domain.
    Context switch the most of the MSRs in and out of vCPU context, but the main
    control register needs to reside in the MSR load/save lists.  Explicitly 
    the msrs pointer out into a local variable, because the optimiser cannot 
    it live across the memory clobbers in the MSR accesses.
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit b72eab263592a3d76aa826675e5d62606d83cecd
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Mon Jun 29 00:05:51 2020 +0200

    xen/memory: Add a vmtrace_buf resource type
    Allow to map processor trace buffer using acquire_resource().
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 45ba9a7d7688a6a08200e37a8caa2bc99bb4d267
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Fri Jun 19 00:31:24 2020 +0200

    tools/[lib]xl: Add vmtrace_buf_size parameter
    Allow to specify the size of per-vCPU trace buffer upon
    domain creation. This is zero by default (meaning: not enabled).
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 217dd79ee29286b85074d22cc75ee064206fb2af
Author: Michał Leszczyński <michal.leszczynski@xxxxxxx>
Date:   Fri Jul 3 01:16:10 2020 +0200

    xen/domain: Add vmtrace_size domain creation parameter
    To use vmtrace, buffers of a suitable size need allocating, and different
    tasks will want different sizes.
    Add a domain creation parameter, and audit it appropriately in the
    {arch_,}sanitise_domain_config() functions.
    For now, the x86 specific auditing is tuned to Processor Trace running in
    Single Output mode, which requires a single contiguous range of memory.
    The size is given an arbitrary limit of 64M which is expected to be enough 
    anticipated usecases, but not large enough to get into 
    Signed-off-by: Michał Leszczyński <michal.leszczynski@xxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit 34cc2e5f8dba6906da82fe8d76e839f9ab20f153
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Mon Jul 27 17:24:11 2020 +0100

    xen/memory: Fix mapping grant tables with XENMEM_acquire_resource
    A guest's default number of grant frames is 64, and XENMEM_acquire_resource
    will reject an attempt to map more than 32 frames.  This limit is caused by
    the size of mfn_list[] on the stack.
    Fix mapping of arbitrary size requests by looping over batches of 32 in
    acquire_resource(), and using hypercall continuations when necessary.
    To start with, break _acquire_resource() out of acquire_resource() to cope
    with type-specific dispatching, and update the return semantics to indicate
    the number of mfns returned.  Update gnttab_acquire_resource() and x86's
    arch_acquire_resource() to match these new semantics.
    Have do_memory_op() pass start_extent into acquire_resource() so it can pick
    up where it left off after a continuation, and loop over batches of 32 until
    all the work is done, or a continuation needs to occur.
    compat_memory_op() is a bit more complicated, because it also has to marshal
    frame_list in the XLAT buffer.  Have it account for continuation information
    itself and hide details from the upper layer, so it can marshal the buffer 
    chunks if necessary.
    With these fixes in place, it is now possible to map the whole grant table 
    a guest.
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

commit f4318db940c39cc656128fcf72df3e79d2e55bc1
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Fri Feb 5 14:09:42 2021 +0100

    x86/EFI: work around GNU ld 2.36 issue
    Our linker capability check fails with the recent binutils release's ld:
    .../check.o:(.debug_aranges+0x6): relocation truncated to fit: R_X86_64_32 
against `.debug_info'
    .../check.o:(.debug_info+0x6): relocation truncated to fit: R_X86_64_32 
against `.debug_abbrev'
    .../check.o:(.debug_info+0xc): relocation truncated to fit: R_X86_64_32 
against `.debug_str'+76
    .../check.o:(.debug_info+0x11): relocation truncated to fit: R_X86_64_32 
against `.debug_str'+d
    .../check.o:(.debug_info+0x15): relocation truncated to fit: R_X86_64_32 
against `.debug_str'+2b
    .../check.o:(.debug_info+0x29): relocation truncated to fit: R_X86_64_32 
against `.debug_line'
    .../check.o:(.debug_info+0x30): relocation truncated to fit: R_X86_64_32 
against `.debug_str'+19
    .../check.o:(.debug_info+0x37): relocation truncated to fit: R_X86_64_32 
against `.debug_str'+71
    .../check.o:(.debug_info+0x3e): relocation truncated to fit: R_X86_64_32 
against `.debug_str'
    .../check.o:(.debug_info+0x45): relocation truncated to fit: R_X86_64_32 
against `.debug_str'+5e
    .../check.o:(.debug_info+0x4c): additional relocation overflows omitted 
from the output
    Tell the linker to strip debug info as a workaround. Debug info has been
    getting stripped already anyway when linking the actual xen.efi.
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

commit d7acc47c8201611fda98ce5bd465626478ca4759
Author: Roger Pau Monne <roger.pau@xxxxxxxxxx>
Date:   Fri Feb 5 13:19:38 2021 +0100

    tools/tests: fix resource test build on FreeBSD
    error.h is not a standard header, and none of the functions declared
    there are actually used by the code. This fixes the build on FreeBSD
    that doesn't have error.h
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
(qemu changes not included)



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