[PATCH v3 3/5] KVM: selftests: Generate sysreg-defs.h and add to include path

[Aishwarya TCV]

On 11/10/2023 20:57, Oliver Upton wrote:
> Start generating sysreg-defs.h for arm64 builds in anticipation of
> updating sysreg.h to a version that depends on it.
> 
> Reviewed-by: Mark Brown <broonie at kernel.org>
> Signed-off-by: Oliver Upton <oliver.upton at linux.dev>
> ---
>  tools/testing/selftests/kvm/Makefile | 23 ++++++++++++++++++++---
>  1 file changed, 20 insertions(+), 3 deletions(-)
> 

Hi Oliver,


Currently when building kselftest against next-master with arm64 arch
and defconfig+kselftest-kvm  “make[4]: *** [Makefile:26: prepare] Error
2” is observed.

The bisect log is below and a full log from a failing test job can be
seen here:

https://storage.kernelci.org/next/master/next-20231023/arm64/defconfig/gcc-10/logs/kselftest.log

make[4]: Entering directory '/tmp/kci/linux/tools/testing/selftests/kvm'
Makefile:270: warning: overriding recipe for target
'/tmp/kci/linux/build/kselftest/kvm/get-reg-list'
Makefile:265: warning: ignoring old recipe for target
'/tmp/kci/linux/build/kselftest/kvm/get-reg-list'
make -C ../../../../tools/arch/arm64/tools/
make[5]: Entering directory '/tmp/kci/linux/tools/arch/arm64/tools'
Makefile:10: ../tools/scripts/Makefile.include: No such file or directory
make[5]: *** No rule to make target '../tools/scripts/Makefile.include'.
 Stop.
make[5]: Leaving directory '/tmp/kci/linux/tools/arch/arm64/tools'
make[4]: *** [Makefile:26: prepare] Error 2
make[4]: Leaving directory '/tmp/kci/linux/tools/testing/selftests/kvm'

git bisect log
git bisect start
# good: [58720809f52779dc0f08e53e54b014209d13eebb] Linux 6.6-rc6
git bisect good 58720809f52779dc0f08e53e54b014209d13eebb
# bad: [4230ea146b1e64628f11e44290bb4008e391bc24] Add linux-next
specific files for 20231019
git bisect bad 4230ea146b1e64628f11e44290bb4008e391bc24
# good: [2958944f7786b88cb86f7b3377c1a8bda75fd506] Merge branch
'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git
git bisect good 2958944f7786b88cb86f7b3377c1a8bda75fd506
# good: [359cb2003c0c273b13ec11b3df076ceac95e5eda] Merge branch
'for-next' of
https://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394.git
git bisect good 359cb2003c0c273b13ec11b3df076ceac95e5eda
# bad: [53cc85767a1dba86b892f72f18e44138ec5e3f83] Merge branch
'for-next' of
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git
git bisect bad 53cc85767a1dba86b892f72f18e44138ec5e3f83
# good: [84ceabd4408bd0bae48b58e2c18ddc5263cd5be4] Merge branch
'next-integrity' of
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
git bisect good 84ceabd4408bd0bae48b58e2c18ddc5263cd5be4
# good: [35c2f21c0d4a633305773355e86b41e28d835f67] Merge branch 'master'
of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git bisect good 35c2f21c0d4a633305773355e86b41e28d835f67
# bad: [92a288da516dc7aaab6e92ba3de7d51c415227b1] Merge branch
'topic/ppc-kvm' of
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
git bisect bad 92a288da516dc7aaab6e92ba3de7d51c415227b1
# good: [5df10099418f139bbf2f4e0d7b9a8727e76274ec] srcu: Explain why
callbacks invocations can't run concurrently
git bisect good 5df10099418f139bbf2f4e0d7b9a8727e76274ec
# good: [2ca9297790bdd24b4baa6e432d393e92272f7dc5] Merge branch
kvm-arm64/writable-id-regs into kvmarm/next
git bisect good 2ca9297790bdd24b4baa6e432d393e92272f7dc5
# good: [7ae3136edc0787c890e07fbd1d16d54557644068] Merge branch
'rcu/next' of
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
git bisect good 7ae3136edc0787c890e07fbd1d16d54557644068
# bad: [50a1ee6541d7c7bac0a43b773b68f20c3ffcbe67] Merge branch 'next' of
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
git bisect bad 50a1ee6541d7c7bac0a43b773b68f20c3ffcbe67
# bad: [54a9ea73527d55ab746d5425e10f3fa748e00e70] KVM: arm64: selftests:
Test for setting ID register from usersapce
git bisect bad 54a9ea73527d55ab746d5425e10f3fa748e00e70
# good: [e2bdd172e6652c2f5554d125a5048bc9f9b0dfa3] perf build: Generate
arm64's sysreg-defs.h and add to include path
git bisect good e2bdd172e6652c2f5554d125a5048bc9f9b0dfa3
# bad: [0359c946b13153bd57fac65f4f3600ba5673e3de] tools headers arm64:
Update sysreg.h with kernel sources
git bisect bad 0359c946b13153bd57fac65f4f3600ba5673e3de
# bad: [9697d84cc3b6d9bff4b1fbffc10a4bb1398af9ba] KVM: selftests:
Generate sysreg-defs.h and add to include path
git bisect bad 9697d84cc3b6d9bff4b1fbffc10a4bb1398af9ba
# first bad commit: [9697d84cc3b6d9bff4b1fbffc10a4bb1398af9ba] KVM:
selftests: Generate sysreg-defs.h and add to include path

Thanks,
Aishwarya