235537fa73
We need to keep a local per-cpu copy of the data as other threads may be running. Currently we can provide insight as to if the access was IO or not and give the offset into a given device (usually the main RAMBlock). We store enough information to get details such as the MemoryRegion which might be useful in later expansions to the API. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
41 lines
981 B
C
41 lines
981 B
C
/*
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* Plugin Memory API
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*
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* Copyright (c) 2019 Linaro Ltd
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef _PLUGIN_MEMORY_H_
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#define _PLUGIN_MEMORY_H_
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struct qemu_plugin_hwaddr {
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bool is_io;
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bool is_store;
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union {
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struct {
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MemoryRegionSection *section;
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hwaddr offset;
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} io;
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struct {
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uint64_t hostaddr;
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} ram;
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} v;
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};
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/**
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* tlb_plugin_lookup: query last TLB lookup
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* @cpu: cpu environment
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*
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* This function can be used directly after a memory operation to
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* query information about the access. It is used by the plugin
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* infrastructure to expose more information about the address.
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*
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* It would only fail if not called from an instrumented memory access
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* which would be an abuse of the API.
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*/
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bool tlb_plugin_lookup(CPUState *cpu, target_ulong addr, int mmu_idx,
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bool is_store, struct qemu_plugin_hwaddr *data);
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#endif /* _PLUGIN_MEMORY_H_ */
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