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Diffstat (limited to 'results/classifier/deepseek-1/output/hypervisor/1904317')
| -rw-r--r-- | results/classifier/deepseek-1/output/hypervisor/1904317 | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/results/classifier/deepseek-1/output/hypervisor/1904317 b/results/classifier/deepseek-1/output/hypervisor/1904317 deleted file mode 100644 index 8324c20c1..000000000 --- a/results/classifier/deepseek-1/output/hypervisor/1904317 +++ /dev/null @@ -1,90 +0,0 @@ - -cpu feature selection is not affected to guest 's cpuid with whpx - -On windows with -accel whpx, "-cpu" is ignored without any messages. -Guest recognizes features as same as host's. - -Confirmed on v5.2.0-rc1. - -I suggest qemu may do, - -- Warn with incompatible -cpu options were given. -- Enhance cpuid handling. - -Background: -I was investigated mmio and block copy issue in Linux kernel. -I met a problem that Linux went ill for touching mmio with whpx. (not with tcg) -I suspect erms(enhanced rep movs) might trigger. -I tried to mask erms on qemu with -feature,erms, but it was ineffective. - -At last, I disabled erms manually, to tweak whpx-all.c to mask erms in cpuid. - -FYI, qemu with whpx from/to mmio, "rep movsb" does byte access regardless of erms. -Linux kernel tends to choose not "rep movsq" but "rep movsb" with erms. - -Cc'ing Sunil (WHPX maintainer). - -On 11/15/20 10:06 AM, Takumi Nakamura wrote: -> Public bug reported: -> -> On windows with -accel whpx, "-cpu" is ignored without any messages. -> Guest recognizes features as same as host's. -> -> Confirmed on v5.2.0-rc1. -> -> I suggest qemu may do, -> -> - Warn with incompatible -cpu options were given. -> - Enhance cpuid handling. -> -> Background: -> I was investigated mmio and block copy issue in Linux kernel. -> I met a problem that Linux went ill for touching mmio with whpx. (not with tcg) -> I suspect erms(enhanced rep movs) might trigger. -> I tried to mask erms on qemu with -feature,erms, but it was ineffective. -> -> At last, I disabled erms manually, to tweak whpx-all.c to mask erms in -> cpuid. -> -> FYI, qemu with whpx from/to mmio, "rep movsb" does byte access regardless of erms. -> Linux kernel tends to choose not "rep movsq" but "rep movsb" with erms. -> -> ** Affects: qemu -> Importance: Undecided -> Status: New -> - - - -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.] - |