Re: [PATCH] KVM: nVMX: Synthesize advanced VM-Exit info for emulated EPT Violations

[kernel test robot <yi1.lai@intel.com>]

Hello,

kernel test robot noticed "kselftests.kvm.nested_tdp_fault_test.fail" on:

commit: 1a01388ba3bd52d1535b10bb5974059f9418cd9e ("[PATCH] KVM: nVMX: Synthesize advanced VM-Exit info for emulated EPT Violations")
url: https://github.com/intel-lab-lkp/linux/commits/Kevin-Cheng/KVM-nVMX-Synthesize-advanced-VM-Exit-info-for-emulated-EPT-Violations/20261029-024005
base: https://git.kernel.org/cgit/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/all/20261029024005.575065-1-chengkev@google.com/
patch subject: [PATCH] KVM: nVMX: Synthesize advanced VM-Exit info for emulated EPT Violations

in testcase: kselftests
version: kselftests-x86_64-05441d697f7f-1_20261105
with following parameters:

	group: kvm

config: x86_64-rhel-9.4-kselftests
compiler: gcc-14
test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202611151806.4ddbcfeb-lkp@intel.com

# selftests: kvm: nested_tdp_fault_test
# Random seed: 0x3ccb3ded
#
# ==== Test Assertion Failure ====
#   x86/nested_tdp_fault_test.c:84: (exit_qual) == (((((1UL))) << (0)) | ((((1UL))) << (7)) | ((((1UL))) << (8)))
#   pid=10529 tid=10529 errno=4 - Interrupted system call
#      1        0x0000000000413921: assert_on_unhandled_exception at processor.c:786
#      2        0x00000000004075e6: _vcpu_run at kvm_util.c:1770
#      3         (inlined by) vcpu_run at kvm_util.c:1781
#      4        0x0000000000403902: run_test at nested_tdp_fault_test.c:275
#      5        0x0000000000402c09: main at nested_tdp_fault_test.c:302
#      6        0x00007f102953aca7: ?? ??:0
#      7        0x00007f102953ad64: ?? ??:0
#      8        0x0000000000402d50: _start at ??:?
#   Wanted EXIT_QUAL '0x181', got '0x581'
not ok 40 selftests: kvm: nested_tdp_fault_test # exit=254


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261115/202611151806.4ddbcfeb-lkp@intel.com


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https://github.com/intel/lkp-tests/wiki