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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen-unstable bisection] complete test-xtf-amd64-amd64-3
branch xen-unstable xenbranch xen-unstable job test-xtf-amd64-amd64-3 testid xtf/test-pv32pae-selftest Tree: linux git://xenbits.xen.org/linux-pvops.git Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git Tree: qemuu git://xenbits.xen.org/qemu-xen.git Tree: xen git://xenbits.xen.org/xen.git Tree: xtf git://xenbits.xen.org/xtf.git *** Found and reproduced problem changeset *** Bug is in tree: xen git://xenbits.xen.org/xen.git Bug introduced: 4dc1815991420b809ce18dddfdf9c0af48944204 Bug not present: 2d824791504f4119f04f95bafffec2e37d319c25 Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/159667/ commit 4dc1815991420b809ce18dddfdf9c0af48944204 Author: Jan Beulich <jbeulich@xxxxxxxx> Date: Fri Feb 19 17:19:56 2021 +0100 x86/PV: harden guest memory accesses against speculative abuse Inspired by https://lore.kernel.org/lkml/f12e7d3cecf41b2c29734ea45a393be21d4a8058.1597848273.git.jpoimboe@xxxxxxxxxx/ and prior work in that area of x86 Linux, suppress speculation with guest specified pointer values by suitably masking the addresses to non-canonical space in case they fall into Xen's virtual address range. Introduce a new Kconfig control. Note that it is necessary in such code to avoid using "m" kind operands: If we didn't, there would be no guarantee that the register passed to guest_access_mask_ptr is also the (base) one used for the memory access. As a minor unrelated change in get_unsafe_asm() the unnecessary "itype" parameter gets dropped and the XOR on the fixup path gets changed to be a 32-bit one in all cases: This way we avoid pointless REX.W or operand size overrides, or writes to partial registers. Requested-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx> Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx> For bisection revision-tuple graph see: http://logs.test-lab.xenproject.org/osstest/results/bisect/xen-unstable/test-xtf-amd64-amd64-3.xtf--test-pv32pae-selftest.html Revision IDs in each graph node refer, respectively, to the Trees above. ---------------------------------------- Running cs-bisection-step --graph-out=/home/logs/results/bisect/xen-unstable/test-xtf-amd64-amd64-3.xtf--test-pv32pae-selftest --summary-out=tmp/159667.bisection-summary --basis-template=159475 --blessings=real,real-bisect,real-retry xen-unstable test-xtf-amd64-amd64-3 xtf/test-pv32pae-selftest Searching for failure / basis pass: 159626 fail [host=chardonnay0] / 159475 [host=godello1] 159453 [host=fiano0] 159424 [host=albana0] 159396 [host=fiano1] 159362 [host=godello0] 159335 [host=albana0] 159315 [host=huxelrebe1] 159202 ok. Failure / basis pass flights: 159626 / 159202 (tree with no url: minios) (tree with no url: ovmf) (tree with no url: seabios) Tree: linux git://xenbits.xen.org/linux-pvops.git Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git Tree: qemuu git://xenbits.xen.org/qemu-xen.git Tree: xen git://xenbits.xen.org/xen.git Tree: xtf git://xenbits.xen.org/xtf.git Latest c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 5d94433a66df29ce314696a13bdd324ec0e342fe 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 Basis pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 687121f8a0e7c1ea1c4fa3d056637e5819342f14 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 Generating revisions with ./adhoc-revtuple-generator git://xenbits.xen.org/linux-pvops.git#c3038e718a19fc596f7b1baba0f83d5146dc7784-c3038e718a19fc596f7b1baba0f83d5146dc7784 git://xenbits.xen.org/osstest/linux-firmware.git#c530a75c1e6a472b0eb9558310b518f0dfcd8860-c530a75c1e6a472b0eb9558310b518f0dfcd8860 git://xenbits.xen.org/qemu-xen-traditional.git#3d273dd05e51e5a1ffba3d98c7437ee84e8f8764-3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 git://xenbits.xen.org/qemu-xen.git#7ea428895af2840d85c524f0bd11a38\ aac308308-7ea428895af2840d85c524f0bd11a38aac308308 git://xenbits.xen.org/xen.git#687121f8a0e7c1ea1c4fa3d056637e5819342f14-5d94433a66df29ce314696a13bdd324ec0e342fe git://xenbits.xen.org/xtf.git#8ab15139728a8efd3ebbb60beb16a958a6a93fa1-8ab15139728a8efd3ebbb60beb16a958a6a93fa1 Loaded 5001 nodes in revision graph Searching for test results: 159202 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 687121f8a0e7c1ea1c4fa3d056637e5819342f14 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159315 [host=huxelrebe1] 159335 [host=albana0] 159362 [host=godello0] 159396 [host=fiano1] 159424 [host=albana0] 159453 [host=fiano0] 159475 [host=godello1] 159487 [host=elbling0] 159491 [host=chardonnay1] 159508 [host=godello0] 159526 [host=elbling1] 159540 [host=albana1] 159559 [host=albana0] 159576 [host=fiano1] 159602 [host=godello0] 159626 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 5d94433a66df29ce314696a13bdd324ec0e342fe 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159651 [host=godello0] 159653 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 687121f8a0e7c1ea1c4fa3d056637e5819342f14 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159654 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 5d94433a66df29ce314696a13bdd324ec0e342fe 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159655 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 7a4133feaf42000923eb9d84badb6b171625f137 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159657 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 a2639824e8458a8f3826e184081a13bfa27ea884 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159659 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 6794cdd08ea8b3512c53b8f162cb3f88fef54d0d 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159661 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159663 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 4dc1815991420b809ce18dddfdf9c0af48944204 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159664 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159665 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 4dc1815991420b809ce18dddfdf9c0af48944204 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159666 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 159667 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 4dc1815991420b809ce18dddfdf9c0af48944204 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 Searching for interesting versions Result found: flight 159202 (pass), for basis pass For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x560b6daca558) HASH(0x560b6daccb88) HASH(0x560b6dac6848) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05\ e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 6794cdd08ea8b3512c53b8f162cb3f88fef54d0d 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x560b6daca3d8) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 7a4133feaf42000923eb9d84badb6b171625f137 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x560b6daa\ b748) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 687121f8a0e7c1ea1c4fa3d056637e5819342f14 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x560b6dab8e48) HASH(0x560b6daac1c8) Result found: flight 159626 (fail), for basis failure (at ancestor ~77) Repro found: flight 159653 (pass), for basis pass Repro found: flight 159654 (fail), for basis failure 0 revisions at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1 No revisions left to test, checking graph state. Result found: flight 159661 (pass), for last pass Result found: flight 159663 (fail), for first failure Repro found: flight 159664 (pass), for last pass Repro found: flight 159665 (fail), for first failure Repro found: flight 159666 (pass), for last pass Repro found: flight 159667 (fail), for first failure *** Found and reproduced problem changeset *** Bug is in tree: xen git://xenbits.xen.org/xen.git Bug introduced: 4dc1815991420b809ce18dddfdf9c0af48944204 Bug not present: 2d824791504f4119f04f95bafffec2e37d319c25 Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/159667/ commit 4dc1815991420b809ce18dddfdf9c0af48944204 Author: Jan Beulich <jbeulich@xxxxxxxx> Date: Fri Feb 19 17:19:56 2021 +0100 x86/PV: harden guest memory accesses against speculative abuse Inspired by https://lore.kernel.org/lkml/f12e7d3cecf41b2c29734ea45a393be21d4a8058.1597848273.git.jpoimboe@xxxxxxxxxx/ and prior work in that area of x86 Linux, suppress speculation with guest specified pointer values by suitably masking the addresses to non-canonical space in case they fall into Xen's virtual address range. Introduce a new Kconfig control. Note that it is necessary in such code to avoid using "m" kind operands: If we didn't, there would be no guarantee that the register passed to guest_access_mask_ptr is also the (base) one used for the memory access. As a minor unrelated change in get_unsafe_asm() the unnecessary "itype" parameter gets dropped and the XOR on the fixup path gets changed to be a 32-bit one in all cases: This way we avoid pointless REX.W or operand size overrides, or writes to partial registers. Requested-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx> Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx> Revision graph left in /home/logs/results/bisect/xen-unstable/test-xtf-amd64-amd64-3.xtf--test-pv32pae-selftest.{dot,ps,png,html,svg}. ---------------------------------------- 159667: tolerable all pass flight 159667 xen-unstable real-bisect [real] http://logs.test-lab.xenproject.org/osstest/logs/159667/ Failures :-/ but no regressions. Tests which did not succeed, including tests which could not be run: test-xtf-amd64-amd64-3 19 xtf/test-pv32pae-selftest fail baseline untested jobs: test-xtf-amd64-amd64-3 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
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