From 7de77d37880d7267a491cb32a1b2232017d1e545 Mon Sep 17 00:00:00 2001 From: Pierrick Bouvier Date: Tue, 14 May 2024 18:42:49 +0100 Subject: plugins: conditional callbacks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Extend plugins API to support callback called with a given criteria (evaluated inline). Added functions: - qemu_plugin_register_vcpu_tb_exec_cond_cb - qemu_plugin_register_vcpu_insn_exec_cond_cb They expect as parameter a condition, a qemu_plugin_u64_t (op1) and an immediate (op2). Callback is called if op1 |cond| op2 is true. Reviewed-by: Richard Henderson Signed-off-by: Pierrick Bouvier Message-Id: <20240502211522.346467-6-pierrick.bouvier@linaro.org> Reviewed-by: Michael S. Tsirkin [AJB: fix re-base conflict with tb_is_mem_only()] Signed-off-by: Alex Bennée Message-Id: <20240514174253.694591-8-alex.bennee@linaro.org> --- plugins/api.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'plugins/api.c') diff --git a/plugins/api.c b/plugins/api.c index b04c5e1928..5a0a7f8c71 100644 --- a/plugins/api.c +++ b/plugins/api.c @@ -102,6 +102,25 @@ void qemu_plugin_register_vcpu_tb_exec_cb(struct qemu_plugin_tb *tb, } } +void qemu_plugin_register_vcpu_tb_exec_cond_cb(struct qemu_plugin_tb *tb, + qemu_plugin_vcpu_udata_cb_t cb, + enum qemu_plugin_cb_flags flags, + enum qemu_plugin_cond cond, + qemu_plugin_u64 entry, + uint64_t imm, + void *udata) +{ + if (cond == QEMU_PLUGIN_COND_NEVER || tb_is_mem_only()) { + return; + } + if (cond == QEMU_PLUGIN_COND_ALWAYS) { + qemu_plugin_register_vcpu_tb_exec_cb(tb, cb, flags, udata); + return; + } + plugin_register_dyn_cond_cb__udata(&tb->cbs, cb, flags, + cond, entry, imm, udata); +} + void qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu( struct qemu_plugin_tb *tb, enum qemu_plugin_op op, @@ -123,6 +142,26 @@ void qemu_plugin_register_vcpu_insn_exec_cb(struct qemu_plugin_insn *insn, } } +void qemu_plugin_register_vcpu_insn_exec_cond_cb( + struct qemu_plugin_insn *insn, + qemu_plugin_vcpu_udata_cb_t cb, + enum qemu_plugin_cb_flags flags, + enum qemu_plugin_cond cond, + qemu_plugin_u64 entry, + uint64_t imm, + void *udata) +{ + if (cond == QEMU_PLUGIN_COND_NEVER || tb_is_mem_only()) { + return; + } + if (cond == QEMU_PLUGIN_COND_ALWAYS) { + qemu_plugin_register_vcpu_insn_exec_cb(insn, cb, flags, udata); + return; + } + plugin_register_dyn_cond_cb__udata(&insn->insn_cbs, cb, flags, + cond, entry, imm, udata); +} + void qemu_plugin_register_vcpu_insn_exec_inline_per_vcpu( struct qemu_plugin_insn *insn, enum qemu_plugin_op op, -- cgit v1.2.3