Merge tag 'accel-20240506' of https://github.com/philmd/qemu into staging

Accelerator patches

- Extract page-protection definitions to page-protection.h
- Rework in accel/tcg in preparation of extracting TCG fields from CPUState
- More uses of get_task_state() in user emulation
- Xen refactors in preparation for adding multiple map caches (Juergen & Edgar)
- MAINTAINERS updates (Aleksandar and Bin)

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* tag 'accel-20240506' of https://github.com/philmd/qemu: (28 commits)
  MAINTAINERS: Update my email address
  MAINTAINERS: Update Aleksandar Rikalo email
  system: Pass RAM MemoryRegion and is_write in xen_map_cache()
  xen: mapcache: Break out xen_map_cache_init_single()
  xen: mapcache: Break out xen_invalidate_map_cache_single()
  xen: mapcache: Refactor xen_invalidate_map_cache_entry_unlocked
  xen: mapcache: Refactor xen_replace_cache_entry_unlocked
  xen: mapcache: Break out xen_ram_addr_from_mapcache_single
  xen: mapcache: Refactor xen_remap_bucket for multi-instance
  xen: mapcache: Refactor xen_map_cache for multi-instance
  xen: mapcache: Refactor lock functions for multi-instance
  xen: let xen_ram_addr_from_mapcache() return -1 in case of not found entry
  system: let qemu_map_ram_ptr() use qemu_ram_ptr_length()
  user: Use get_task_state() helper
  user: Declare get_task_state() once in 'accel/tcg/vcpu-state.h'
  user: Forward declare TaskState type definition
  accel/tcg: Move @plugin_mem_cbs from CPUState to CPUNegativeOffsetState
  accel/tcg: Restrict cpu_plugin_mem_cbs_enabled() to TCG
  accel/tcg: Restrict qemu_plugin_vcpu_exit_hook() to TCG plugins
  accel/tcg: Update CPUNegativeOffsetState::can_do_io field documentation
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 11 insertions, 27 deletions

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 1382a98615..bb398e8237 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -345,12 +345,20 @@ typedef union IcountDecr {
     } u16;
 } IcountDecr;
 
-/*
- * Elements of CPUState most efficiently accessed from CPUArchState,
- * via small negative offsets.
+/**
+ * CPUNegativeOffsetState: Elements of CPUState most efficiently accessed
+ *                         from CPUArchState, via small negative offsets.
+ * @can_do_io: True if memory-mapped IO is allowed.
+ * @plugin_mem_cbs: active plugin memory callbacks
  */
 typedef struct CPUNegativeOffsetState {
     CPUTLB tlb;
+#ifdef CONFIG_PLUGIN
+    /*
+     * The callback pointer are accessed via TCG (see gen_empty_mem_helper).
+     */
+    GArray *plugin_mem_cbs;
+#endif
     IcountDecr icount_decr;
     bool can_do_io;
 } CPUNegativeOffsetState;
@@ -407,7 +415,6 @@ struct qemu_work_item;
  * @crash_occurred: Indicates the OS reported a crash (panic) for this CPU
  * @singlestep_enabled: Flags for single-stepping.
  * @icount_extra: Instructions until next timer event.
- * @neg.can_do_io: True if memory-mapped IO is allowed.
  * @cpu_ases: Pointer to array of CPUAddressSpaces (which define the
  *            AddressSpaces this CPU has)
  * @num_ases: number of CPUAddressSpaces in @cpu_ases
@@ -423,7 +430,6 @@ struct qemu_work_item;
  * @kvm_fd: vCPU file descriptor for KVM.
  * @work_mutex: Lock to prevent multiple access to @work_list.
  * @work_list: List of pending asynchronous work.
- * @plugin_mem_cbs: active plugin memory callbacks
  * @plugin_state: per-CPU plugin state
  * @ignore_memory_transaction_failures: Cached copy of the MachineState
  *    flag of the same name: allows the board to suppress calling of the
@@ -518,11 +524,6 @@ struct CPUState {
     QemuLockCnt in_ioctl_lock;
 
 #ifdef CONFIG_PLUGIN
-    /*
-     * The callback pointer stays in the main CPUState as it is
-     * accessed via TCG (see gen_empty_mem_helper).
-     */
-    GArray *plugin_mem_cbs;
     CPUPluginState *plugin_state;
 #endif
 
@@ -1119,23 +1120,6 @@ void cpu_watchpoint_remove_all(CPUState *cpu, int mask);
 #endif
 
 /**
- * cpu_plugin_mem_cbs_enabled() - are plugin memory callbacks enabled?
- * @cs: CPUState pointer
- *
- * The memory callbacks are installed if a plugin has instrumented an
- * instruction for memory. This can be useful to know if you want to
- * force a slow path for a series of memory accesses.
- */
-static inline bool cpu_plugin_mem_cbs_enabled(const CPUState *cpu)
-{
-#ifdef CONFIG_PLUGIN
-    return !!cpu->plugin_mem_cbs;
-#else
-    return false;
-#endif
-}
-
-/**
  * cpu_get_address_space:
  * @cpu: CPU to get address space from
  * @asidx: index identifying which address space to get