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0a90fbc8a1
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>
26 lines
536 B
C
26 lines
536 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2025 Google LLC
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* Author: Vincent Donnefort <vdonnefort@google.com>
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*/
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#include <nvhe/mm.h>
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#include <nvhe/trace.h>
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#include <nvhe/define_events.h>
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int __tracing_enable_event(unsigned short id, bool enable)
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{
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struct hyp_event_id *event_id = &__hyp_event_ids_start[id];
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atomic_t *enabled;
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if (event_id >= __hyp_event_ids_end)
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return -EINVAL;
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enabled = hyp_fixmap_map(__hyp_pa(&event_id->enabled));
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atomic_set(enabled, enable);
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hyp_fixmap_unmap();
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return 0;
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}
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