KVM: arm64: selftests: Test empty SMCCC filter range at base 0

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test_invalid_nr_functions() only checks an empty range at
PSCI_0_2_FN64_CPU_ON, which KVM's end < start check happens to catch.
It never exercised base 0, where the inclusive end wraps to U32_MAX
instead.

Add the base 0 case. Without the preceding fix it fails with EEXIST.

Assisted-by: LLM
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Tested-by: Fuad Tabba <fuad.tabba@linux.dev>
Link: https://patch.msgid.link/20260829054856.70549-3-kmehltretter@gmail.com
Signed-off-by: Oliver Upton <oupton@kernel.org>

...

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Karl Mehltretter 2026-08-29 07:48:56 +02:00 • committed by Oliver Upton

parent 64dc6f1db7

commit 0a46eb5719

1 changed files with 4 additions and 0 deletions

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tools/testing/selftests/kvm/arm64/smccc_filter.c

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