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| author | Colton Lewis <coltonlewis@google.com> | 2024-08-23 17:58:35 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2024-08-30 09:03:45 +0100 |
| commit | ca1a18368d764f9b29ab0c79b3ddd712f5511855 (patch) | |
| tree | 695b712f3d6e9567f01a69bf51f32dcc41f8130a /tools/testing/selftests/kvm/lib/aarch64/processor.c | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
| download | linux-next-ca1a18368d764f9b29ab0c79b3ddd712f5511855.tar.gz linux-next-ca1a18368d764f9b29ab0c79b3ddd712f5511855.zip | |
KVM: arm64: selftests: Ensure pending interrupts are handled in arch_timer test
Break up the asm instructions poking daifclr and daifset to handle
interrupts. R_RBZYL specifies pending interrupts will be handle after
context synchronization events such as an ISB.
Introduce a function wrapper for the WFI instruction.
Signed-off-by: Colton Lewis <coltonlewis@google.com>
Link: https://lore.kernel.org/r/20240823175836.2798235-2-coltonlewis@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'tools/testing/selftests/kvm/lib/aarch64/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/aarch64/processor.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c index 0ac7cc89f38c..fe4dc3693112 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c @@ -639,3 +639,9 @@ void vm_vaddr_populate_bitmap(struct kvm_vm *vm) sparsebit_set_num(vm->vpages_valid, 0, (1ULL << vm->va_bits) >> vm->page_shift); } + +/* Helper to call wfi instruction. */ +void wfi(void) +{ + asm volatile("wfi"); +} |