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Diffstat (limited to 'results/classifier/zero-shot/105/other/1902451')
| -rw-r--r-- | results/classifier/zero-shot/105/other/1902451 | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/105/other/1902451 b/results/classifier/zero-shot/105/other/1902451 new file mode 100644 index 000000000..bc4eff149 --- /dev/null +++ b/results/classifier/zero-shot/105/other/1902451 @@ -0,0 +1,67 @@ +other: 0.711 +mistranslation: 0.674 +graphic: 0.664 +semantic: 0.624 +instruction: 0.560 +device: 0.511 +assembly: 0.495 +KVM: 0.489 +network: 0.474 +socket: 0.439 +boot: 0.429 +vnc: 0.366 + +incorrect cpuid feature detection + +Hello, + +I am currently developing a x64 kernel and I wanted to check through cpuid if some features are available in the guest. When I try to enable cpu features like vmcb_clean or constant_tsc qemu is saying that my host doesn't support the requested features. However cat /proc/cpuinfo tells a different story: + +model name: AMD Ryzen 5 3500U +flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate sme pti ssbd sev ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca + +I also checked it myself by running cpuid and check the bits as in the AMD Manual. Everything checks out but qemu still fails. + +QEMU version: QEMU emulator version 4.2.0 + +$ qemu-system-x86_64 -cpu host,+vmcb_clean,enforce -enable-kvm -drive format=raw,file=target/x86_64-os/debug/bootimage-my_kernel.bin -serial stdio -display none +qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.8000000AH:EDX.vmcb-clean [bit 5] +qemu-system-x86_64: Host doesn't support requested features + +or + +$ qemu-system-x86_64 -cpu host,+constant_tsc,enforce -enable-kvm -drive format=raw,file=target/x86_64-os/debug/bootimage-my_kernel.bin -serial stdio -display none +qemu-system-x86_64: Property '.constant_tsc' not found + +The QEMU project is currently moving its bug tracking to another system. +For this we need to know which bugs are still valid and which could be +closed already. Thus we are setting the bug state to "Incomplete" now. + +If the bug has already been fixed in the latest upstream version of QEMU, +then please close this ticket as "Fix released". + +If it is not fixed yet and you think that this bug report here is still +valid, then you have two options: + +1) If you already have an account on gitlab.com, please open a new ticket +for this problem in our new tracker here: + + https://gitlab.com/qemu-project/qemu/-/issues + +and then close this ticket here on Launchpad (or let it expire auto- +matically after 60 days). Please mention the URL of this bug ticket on +Launchpad in the new ticket on GitLab. + +2) If you don't have an account on gitlab.com and don't intend to get +one, but still would like to keep this ticket opened, then please switch +the state back to "New" or "Confirmed" within the next 60 days (other- +wise it will get closed as "Expired"). We will then eventually migrate +the ticket automatically to the new system (but you won't be the reporter +of the bug in the new system and thus you won't get notified on changes +anymore). + +Thank you and sorry for the inconvenience. + + +[Expired for QEMU because there has been no activity for 60 days.] + |