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KVM: arm64: Add selftest event support to nVHE/pKVM hyp

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Add a selftest event that can be triggered from a `write_event` tracefs
file. This intends to be used by trace remote selftests.

Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Link: https://patch.msgid.link/20260309162516.2623589-30-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Vincent Donnefort
2026-03-09 16:25:15 +00:00
committed by Marc Zyngier
parent 696dfec22b
commit 5bbbed42f7
4 changed files with 42 additions and 0 deletions
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arch/arm64/include/asm/kvm_asm.h
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@@ -96,6 +96,7 @@ enum __kvm_host_smccc_func {
__KVM_HOST_SMCCC_FUNC___tracing_update_clock,
__KVM_HOST_SMCCC_FUNC___tracing_reset,
__KVM_HOST_SMCCC_FUNC___tracing_enable_event,
__KVM_HOST_SMCCC_FUNC___tracing_write_event,
};
#define DECLARE_KVM_VHE_SYM(sym) extern char sym[]