Re: [kvm-unit-tests PATCH v4 0/5] x86: add HPET counter tests

[Igor Mammedov <imammedo@redhat.com>]

On Fri, 25 Jul 2025 11:54:24 +0200
Igor Mammedov <imammedo@redhat.com> wrote:


Paolo,
gentle ping

> Changelog:
>   v4:
>      * fix smap/pku/pks tests that were failing CI
>      * on_cpus() wasn't running task on CPUs above 255,
>        fix x86/smp code to correctly account for APIC IDs
>        above 255
>      * bump max cpus limit to 1024 
>      * hpet: count 0 latency as failure to avoid missing
>        APs that doesn't run reader task
>      * hpet: replace on_cpus() with on_cpus_async() to
>        to run reader task only on explicitly selected APs.
>   v3:
>      * fix test running long time due to control thread
>        also running read test and stalling starting other threads 
>      * improve latency accuracy 
>      * increase max number of vcpus to 448
>        (that's what I had in hands for testing)
> 
> previous rev:
>    "[kvm-unit-tests PATCH v3 0/2] x86: add HPET counter tests"
>    https://yhbt.net/lore/all/20250718155738.1540072-1-imammedo@redhat.com/T/#t
> 
> Igor Mammedov (5):
>   x86: resize id_map[] elements to u32
>   x86: fix APs with APIC ID more that 255 not showing in id_map
>   x86: move USERBASE to 32Mb in smap/pku/pks tests
>   x86: bump number of max cpus to 1024
>   x86: add HPET counter read micro benchmark and enable/disable torture
>     tests
> 
>  lib/x86/apic.h       |  2 +-
>  lib/x86/smp.h        |  2 +-
>  lib/x86/apic.c       |  2 +-
>  lib/x86/setup.c      |  2 +-
>  x86/Makefile.common  |  2 +
>  x86/cstart.S         |  2 +-
>  x86/hpet_read_test.c | 93 ++++++++++++++++++++++++++++++++++++++++++++
>  x86/pks.c            |  2 +-
>  x86/pku.c            |  2 +-
>  x86/smap.c           |  2 +-
>  10 files changed, 103 insertions(+), 8 deletions(-)
>  create mode 100644 x86/hpet_read_test.c
>