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Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20240429213050.55177-4-philmd@linaro.org> --- accel/tcg/internal-common.h | 2 +- include/hw/core/cpu.h | 13 +++++++------ include/qemu/plugin.h | 2 +- accel/tcg/plugin-gen.c | 6 +++--- plugins/core.c | 2 +- 5 files changed, 13 insertions(+), 12 deletions(-) diff --git a/accel/tcg/internal-common.h b/accel/tcg/internal-common.h index cbeff39e3e..cff43d221b 100644 --- a/accel/tcg/internal-common.h +++ b/accel/tcg/internal-common.h @@ -35,7 +35,7 @@ static inline bool cpu_in_serial_context(CPUState *cs) static inline bool cpu_plugin_mem_cbs_enabled(const CPUState *cpu) { #ifdef CONFIG_PLUGIN - return !!cpu->plugin_mem_cbs; + return !!cpu->neg.plugin_mem_cbs; #else return false; #endif diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index a001bafcf8..6efd7353be 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -342,9 +342,16 @@ typedef union IcountDecr { * 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; @@ -416,7 +423,6 @@ 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 @@ -511,11 +517,6 @@ 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 diff --git a/include/qemu/plugin.h b/include/qemu/plugin.h index 18062528c1..b535bfd5de 100644 --- a/include/qemu/plugin.h +++ b/include/qemu/plugin.h @@ -180,7 +180,7 @@ void qemu_plugin_add_dyn_cb_arr(GArray *arr); static inline void qemu_plugin_disable_mem_helpers(CPUState *cpu) { - cpu->plugin_mem_cbs = NULL; + cpu->neg.plugin_mem_cbs = NULL; } /** diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index 3db74ae9bf..49f5d1c2e4 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -55,7 +55,7 @@ static void gen_enable_mem_helper(struct qemu_plugin_tb *ptb, * Tracking memory accesses performed from helpers requires extra work. * If an instruction is emulated with helpers, we do two things: * (1) copy the CB descriptors, and keep track of it so that they can be - * freed later on, and (2) point CPUState.plugin_mem_cbs to the + * freed later on, and (2) point CPUState.neg.plugin_mem_cbs to the * descriptors, so that we can read them at run-time * (i.e. when the helper executes). * This run-time access is performed from qemu_plugin_vcpu_mem_cb. @@ -90,14 +90,14 @@ static void gen_enable_mem_helper(struct qemu_plugin_tb *ptb, qemu_plugin_add_dyn_cb_arr(arr); tcg_gen_st_ptr(tcg_constant_ptr((intptr_t)arr), tcg_env, - offsetof(CPUState, plugin_mem_cbs) - + offsetof(CPUState, neg.plugin_mem_cbs) - offsetof(ArchCPU, env)); } static void gen_disable_mem_helper(void) { tcg_gen_st_ptr(tcg_constant_ptr(0), tcg_env, - offsetof(CPUState, plugin_mem_cbs) - + offsetof(CPUState, neg.plugin_mem_cbs) - offsetof(ArchCPU, env)); } diff --git a/plugins/core.c b/plugins/core.c index 081323dafc..1e58a57bf1 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -533,7 +533,7 @@ void exec_inline_op(struct qemu_plugin_dyn_cb *cb, int cpu_index) void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr, MemOpIdx oi, enum qemu_plugin_mem_rw rw) { - GArray *arr = cpu->plugin_mem_cbs; + GArray *arr = cpu->neg.plugin_mem_cbs; size_t i; if (arr == NULL) { -- 2.41.0