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([102.35.208.160]) by smtp.gmail.com with ESMTPSA id u12-20020a5d6acc000000b0033e7a499deasm6108795wrw.109.2024.03.12.00.54.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Mar 2024 00:54:53 -0700 (PDT) From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: Alexandre Iooss , Pierrick Bouvier , Mahmoud Mandour , Paolo Bonzini , =?utf-8?q?Alex_Benn=C3=A9e?= , Richard Henderson Subject: [PATCH v2 1/5] plugins: prepare introduction of new inline ops Date: Tue, 12 Mar 2024 11:54:24 +0400 Message-Id: <20240312075428.244210-2-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240312075428.244210-1-pierrick.bouvier@linaro.org> References: <20240312075428.244210-1-pierrick.bouvier@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::329; envelope-from=pierrick.bouvier@linaro.org; helo=mail-wm1-x329.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Until now, only add_u64 was available, and all functions assumed this or were named uniquely. Signed-off-by: Pierrick Bouvier Reviewed-by: Richard Henderson --- include/qemu/plugin.h | 2 +- plugins/plugin.h | 1 + accel/tcg/plugin-gen.c | 77 +++++++++++++++++++++--------------------- plugins/api.c | 23 ++++++++++--- plugins/core.c | 5 +-- 5 files changed, 61 insertions(+), 47 deletions(-) diff --git a/include/qemu/plugin.h b/include/qemu/plugin.h index 12a96cea2a4..33a7cbe910c 100644 --- a/include/qemu/plugin.h +++ b/include/qemu/plugin.h @@ -74,7 +74,7 @@ enum plugin_dyn_cb_type { enum plugin_dyn_cb_subtype { PLUGIN_CB_REGULAR, PLUGIN_CB_REGULAR_R, - PLUGIN_CB_INLINE, + PLUGIN_CB_INLINE_ADD_U64, PLUGIN_N_CB_SUBTYPES, }; diff --git a/plugins/plugin.h b/plugins/plugin.h index 7c34f23cfcb..696b1fa38b0 100644 --- a/plugins/plugin.h +++ b/plugins/plugin.h @@ -70,6 +70,7 @@ struct qemu_plugin_ctx *plugin_id_to_ctx_locked(qemu_plugin_id_t id); void plugin_register_inline_op_on_entry(GArray **arr, enum qemu_plugin_mem_rw rw, + enum plugin_dyn_cb_subtype type, enum qemu_plugin_op op, qemu_plugin_u64 entry, uint64_t imm); diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index 8028786c7bb..494467e0833 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -81,7 +81,7 @@ enum plugin_gen_from { enum plugin_gen_cb { PLUGIN_GEN_CB_UDATA, PLUGIN_GEN_CB_UDATA_R, - PLUGIN_GEN_CB_INLINE, + PLUGIN_GEN_CB_INLINE_ADD_U64, PLUGIN_GEN_CB_MEM, PLUGIN_GEN_ENABLE_MEM_HELPER, PLUGIN_GEN_DISABLE_MEM_HELPER, @@ -127,11 +127,7 @@ static void gen_empty_udata_cb_no_rwg(void) gen_empty_udata_cb(gen_helper_plugin_vcpu_udata_cb_no_rwg); } -/* - * For now we only support addi_i64. - * When we support more ops, we can generate one empty inline cb for each. - */ -static void gen_empty_inline_cb(void) +static void gen_empty_inline_cb_add_u64(void) { TCGv_i32 cpu_index = tcg_temp_ebb_new_i32(); TCGv_ptr cpu_index_as_ptr = tcg_temp_ebb_new_ptr(); @@ -219,9 +215,11 @@ static void plugin_gen_empty_callback(enum plugin_gen_from from) gen_empty_mem_helper); /* fall through */ case PLUGIN_GEN_FROM_TB: + /* emit inline op before any callback */ + gen_wrapped(from, PLUGIN_GEN_CB_INLINE_ADD_U64, + gen_empty_inline_cb_add_u64); gen_wrapped(from, PLUGIN_GEN_CB_UDATA, gen_empty_udata_cb_no_rwg); gen_wrapped(from, PLUGIN_GEN_CB_UDATA_R, gen_empty_udata_cb_no_wg); - gen_wrapped(from, PLUGIN_GEN_CB_INLINE, gen_empty_inline_cb); break; default: g_assert_not_reached(); @@ -232,13 +230,14 @@ void plugin_gen_empty_mem_callback(TCGv_i64 addr, uint32_t info) { enum qemu_plugin_mem_rw rw = get_plugin_meminfo_rw(info); + /* emit inline op before any callback */ + gen_plugin_cb_start(PLUGIN_GEN_FROM_MEM, PLUGIN_GEN_CB_INLINE_ADD_U64, rw); + gen_empty_inline_cb_add_u64(); + tcg_gen_plugin_cb_end(); + gen_plugin_cb_start(PLUGIN_GEN_FROM_MEM, PLUGIN_GEN_CB_MEM, rw); gen_empty_mem_cb(addr, info); tcg_gen_plugin_cb_end(); - - gen_plugin_cb_start(PLUGIN_GEN_FROM_MEM, PLUGIN_GEN_CB_INLINE, rw); - gen_empty_inline_cb(); - tcg_gen_plugin_cb_end(); } static TCGOp *find_op(TCGOp *op, TCGOpcode opc) @@ -436,9 +435,9 @@ static TCGOp *append_udata_cb(const struct qemu_plugin_dyn_cb *cb, return op; } -static TCGOp *append_inline_cb(const struct qemu_plugin_dyn_cb *cb, - TCGOp *begin_op, TCGOp *op, - int *unused) +static TCGOp *append_inline_cb_add_u64(const struct qemu_plugin_dyn_cb *cb, + TCGOp *begin_op, TCGOp *op, + int *unused) { char *ptr = cb->inline_insn.entry.score->data->data; size_t elem_size = g_array_get_element_size( @@ -538,9 +537,9 @@ inject_udata_cb(const GArray *cbs, TCGOp *begin_op) } static void -inject_inline_cb(const GArray *cbs, TCGOp *begin_op, op_ok_fn ok) +inject_inline_cb_add_u64(const GArray *cbs, TCGOp *begin_op, op_ok_fn ok) { - inject_cb_type(cbs, begin_op, append_inline_cb, ok); + inject_cb_type(cbs, begin_op, append_inline_cb_add_u64, ok); } static void @@ -588,8 +587,9 @@ static void inject_mem_enable_helper(struct qemu_plugin_tb *ptb, GArray *arr; size_t n_cbs, i; - cbs[0] = plugin_insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_REGULAR]; - cbs[1] = plugin_insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_INLINE]; + /* emit inline op before any callback */ + cbs[0] = plugin_insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_INLINE_ADD_U64]; + cbs[1] = plugin_insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_REGULAR]; n_cbs = 0; for (i = 0; i < ARRAY_SIZE(cbs); i++) { @@ -655,10 +655,11 @@ static void plugin_gen_tb_udata_r(const struct qemu_plugin_tb *ptb, inject_udata_cb(ptb->cbs[PLUGIN_CB_REGULAR_R], begin_op); } -static void plugin_gen_tb_inline(const struct qemu_plugin_tb *ptb, - TCGOp *begin_op) +static void plugin_gen_tb_inline_add_u64(const struct qemu_plugin_tb *ptb, + TCGOp *begin_op) { - inject_inline_cb(ptb->cbs[PLUGIN_CB_INLINE], begin_op, op_ok); + inject_inline_cb_add_u64(ptb->cbs[PLUGIN_CB_INLINE_ADD_U64], + begin_op, op_ok); } static void plugin_gen_insn_udata(const struct qemu_plugin_tb *ptb, @@ -677,12 +678,12 @@ static void plugin_gen_insn_udata_r(const struct qemu_plugin_tb *ptb, inject_udata_cb(insn->cbs[PLUGIN_CB_INSN][PLUGIN_CB_REGULAR_R], begin_op); } -static void plugin_gen_insn_inline(const struct qemu_plugin_tb *ptb, - TCGOp *begin_op, int insn_idx) +static void plugin_gen_insn_inline_add_u64(const struct qemu_plugin_tb *ptb, + TCGOp *begin_op, int insn_idx) { struct qemu_plugin_insn *insn = g_ptr_array_index(ptb->insns, insn_idx); - inject_inline_cb(insn->cbs[PLUGIN_CB_INSN][PLUGIN_CB_INLINE], - begin_op, op_ok); + inject_inline_cb_add_u64( + insn->cbs[PLUGIN_CB_INSN][PLUGIN_CB_INLINE_ADD_U64], begin_op, op_ok); } static void plugin_gen_mem_regular(const struct qemu_plugin_tb *ptb, @@ -692,14 +693,12 @@ static void plugin_gen_mem_regular(const struct qemu_plugin_tb *ptb, inject_mem_cb(insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_REGULAR], begin_op); } -static void plugin_gen_mem_inline(const struct qemu_plugin_tb *ptb, - TCGOp *begin_op, int insn_idx) +static void plugin_gen_mem_inline_add_u64(const struct qemu_plugin_tb *ptb, + TCGOp *begin_op, int insn_idx) { - const GArray *cbs; struct qemu_plugin_insn *insn = g_ptr_array_index(ptb->insns, insn_idx); - - cbs = insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_INLINE]; - inject_inline_cb(cbs, begin_op, op_rw); + inject_inline_cb_add_u64(insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_INLINE_ADD_U64], + begin_op, op_rw); } static void plugin_gen_enable_mem_helper(struct qemu_plugin_tb *ptb, @@ -748,8 +747,8 @@ static void pr_ops(void) case PLUGIN_GEN_CB_UDATA: type = "udata"; break; - case PLUGIN_GEN_CB_INLINE: - type = "inline"; + case PLUGIN_GEN_CB_INLINE_ADD_U64: + type = "inline add u64"; break; case PLUGIN_GEN_CB_MEM: type = "mem"; @@ -799,8 +798,8 @@ static void plugin_gen_inject(struct qemu_plugin_tb *plugin_tb) case PLUGIN_GEN_CB_UDATA_R: plugin_gen_tb_udata_r(plugin_tb, op); break; - case PLUGIN_GEN_CB_INLINE: - plugin_gen_tb_inline(plugin_tb, op); + case PLUGIN_GEN_CB_INLINE_ADD_U64: + plugin_gen_tb_inline_add_u64(plugin_tb, op); break; default: g_assert_not_reached(); @@ -818,8 +817,8 @@ static void plugin_gen_inject(struct qemu_plugin_tb *plugin_tb) case PLUGIN_GEN_CB_UDATA_R: plugin_gen_insn_udata_r(plugin_tb, op, insn_idx); break; - case PLUGIN_GEN_CB_INLINE: - plugin_gen_insn_inline(plugin_tb, op, insn_idx); + case PLUGIN_GEN_CB_INLINE_ADD_U64: + plugin_gen_insn_inline_add_u64(plugin_tb, op, insn_idx); break; case PLUGIN_GEN_ENABLE_MEM_HELPER: plugin_gen_enable_mem_helper(plugin_tb, op, insn_idx); @@ -837,8 +836,8 @@ static void plugin_gen_inject(struct qemu_plugin_tb *plugin_tb) case PLUGIN_GEN_CB_MEM: plugin_gen_mem_regular(plugin_tb, op, insn_idx); break; - case PLUGIN_GEN_CB_INLINE: - plugin_gen_mem_inline(plugin_tb, op, insn_idx); + case PLUGIN_GEN_CB_INLINE_ADD_U64: + plugin_gen_mem_inline_add_u64(plugin_tb, op, insn_idx); break; default: g_assert_not_reached(); diff --git a/plugins/api.c b/plugins/api.c index 8fa5a600ac3..09ff7c70127 100644 --- a/plugins/api.c +++ b/plugins/api.c @@ -55,6 +55,16 @@ #endif #endif +static enum plugin_dyn_cb_subtype op_to_cb_subtype(enum qemu_plugin_op op) +{ + switch (op) { + case QEMU_PLUGIN_INLINE_ADD_U64: + return PLUGIN_CB_INLINE_ADD_U64; + default: + g_assert_not_reached(); + } +} + /* Uninstall and Reset handlers */ void qemu_plugin_uninstall(qemu_plugin_id_t id, qemu_plugin_simple_cb_t cb) @@ -108,8 +118,9 @@ void qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu( uint64_t imm) { if (!tb->mem_only) { - plugin_register_inline_op_on_entry( - &tb->cbs[PLUGIN_CB_INLINE], 0, op, entry, imm); + enum plugin_dyn_cb_subtype type = op_to_cb_subtype(op); + plugin_register_inline_op_on_entry(&tb->cbs[type], + 0, type, op, entry, imm); } } @@ -135,8 +146,9 @@ void qemu_plugin_register_vcpu_insn_exec_inline_per_vcpu( uint64_t imm) { if (!insn->mem_only) { - plugin_register_inline_op_on_entry( - &insn->cbs[PLUGIN_CB_INSN][PLUGIN_CB_INLINE], 0, op, entry, imm); + enum plugin_dyn_cb_subtype type = op_to_cb_subtype(op); + plugin_register_inline_op_on_entry(&insn->cbs[PLUGIN_CB_INSN][type], + 0, type, op, entry, imm); } } @@ -162,8 +174,9 @@ void qemu_plugin_register_vcpu_mem_inline_per_vcpu( qemu_plugin_u64 entry, uint64_t imm) { + enum plugin_dyn_cb_subtype type = op_to_cb_subtype(op); plugin_register_inline_op_on_entry( - &insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_INLINE], rw, op, entry, imm); + &insn->cbs[PLUGIN_CB_MEM][type], rw, type, op, entry, imm); } void qemu_plugin_register_vcpu_tb_trans_cb(qemu_plugin_id_t id, diff --git a/plugins/core.c b/plugins/core.c index 11ca20e6267..a641a366ef9 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -318,6 +318,7 @@ static struct qemu_plugin_dyn_cb *plugin_get_dyn_cb(GArray **arr) void plugin_register_inline_op_on_entry(GArray **arr, enum qemu_plugin_mem_rw rw, + enum plugin_dyn_cb_subtype type, enum qemu_plugin_op op, qemu_plugin_u64 entry, uint64_t imm) @@ -326,7 +327,7 @@ void plugin_register_inline_op_on_entry(GArray **arr, dyn_cb = plugin_get_dyn_cb(arr); dyn_cb->userp = NULL; - dyn_cb->type = PLUGIN_CB_INLINE; + dyn_cb->type = type; dyn_cb->rw = rw; dyn_cb->inline_insn.entry = entry; dyn_cb->inline_insn.op = op; @@ -514,7 +515,7 @@ void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr, cb->f.vcpu_mem(cpu->cpu_index, make_plugin_meminfo(oi, rw), vaddr, cb->userp); break; - case PLUGIN_CB_INLINE: + case PLUGIN_CB_INLINE_ADD_U64: exec_inline_op(cb, cpu->cpu_index); break; default: