include/qemu/plugin-memory.h

   1 /*
   2  * Plugin Memory API
   3  *
   4  * Copyright (c) 2019 Linaro Ltd
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #ifndef _PLUGIN_MEMORY_H_
  10 #define _PLUGIN_MEMORY_H_
  11
  12 struct qemu_plugin_hwaddr {
  13     bool is_io;
  14     bool is_store;
  15     union {
  16         struct {
  17             MemoryRegionSection *section;
  18             hwaddr    offset;
  19         } io;
  20         struct {
  21             uint64_t hostaddr;
  22         } ram;
  23     } v;
  24 };
  25
  26 /**
  27  * tlb_plugin_lookup: query last TLB lookup
  28  * @cpu: cpu environment
  29  *
  30  * This function can be used directly after a memory operation to
  31  * query information about the access. It is used by the plugin
  32  * infrastructure to expose more information about the address.
  33  *
  34  * It would only fail if not called from an instrumented memory access
  35  * which would be an abuse of the API.
  36  */
  37 bool tlb_plugin_lookup(CPUState *cpu, target_ulong addr, int mmu_idx,
  38                        bool is_store, struct qemu_plugin_hwaddr *data);
  39
  40 #endif /* _PLUGIN_MEMORY_H_ */