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KVM: arm64: Add event support to the nVHE/pKVM hyp and trace remote

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Allow the creation of hypervisor and trace remote events with a single
macro HYP_EVENT(). That macro expands in the kernel side to add all
the required declarations (based on REMOTE_EVENT()) as well as in the
hypervisor side to create the trace_<event>() function.

Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Link: https://patch.msgid.link/20260309162516.2623589-28-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Vincent Donnefort
2026-03-09 16:25:13 +00:00
committed by Marc Zyngier
parent 2194d317e0
commit 0a90fbc8a1
13 changed files with 184 additions and 2 deletions
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arch/arm64/include/asm/kvm_asm.h
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@@ -95,6 +95,7 @@ enum __kvm_host_smccc_func {
__KVM_HOST_SMCCC_FUNC___tracing_swap_reader,
__KVM_HOST_SMCCC_FUNC___tracing_update_clock,
__KVM_HOST_SMCCC_FUNC___tracing_reset,
__KVM_HOST_SMCCC_FUNC___tracing_enable_event,
};
#define DECLARE_KVM_VHE_SYM(sym) extern char sym[]