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 #include "exec/cpu-defs.h"
  13 #include "exec/hwaddr.h"
  14
  15 struct qemu_plugin_hwaddr {
  16     bool is_io;
  17     bool is_store;
  18     union {
  19         struct {
  20             MemoryRegionSection *section;
  21             hwaddr    offset;
  22         } io;
  23         struct {
  24             void *hostaddr;
  25         } ram;
  26     } v;
  27 };
  28
  29 /**
  30  * tlb_plugin_lookup: query last TLB lookup
  31  * @cpu: cpu environment
  32  *
  33  * This function can be used directly after a memory operation to
  34  * query information about the access. It is used by the plugin
  35  * infrastructure to expose more information about the address.
  36  *
  37  * It would only fail if not called from an instrumented memory access
  38  * which would be an abuse of the API.
  39  */
  40 bool tlb_plugin_lookup(CPUState *cpu, target_ulong addr, int mmu_idx,
  41                        bool is_store, struct qemu_plugin_hwaddr *data);
  42
  43 #endif /* PLUGIN_MEMORY_H */