From 0bcebaba45c2cc3e671e002f3c15266f0ff03b8c Mon Sep 17 00:00:00 2001 From: Pierrick Bouvier Date: Tue, 5 Mar 2024 12:09:53 +0000 Subject: plugins: add inline operation per vcpu MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Extends API with three new functions: qemu_plugin_register_vcpu_{tb, insn, mem}_exec_inline_per_vcpu(). Those functions takes a qemu_plugin_u64 as input. This allows to have a thread-safe and type-safe version of inline operations. Reviewed-by: Alex Bennée Reviewed-by: Richard Henderson Signed-off-by: Pierrick Bouvier Message-Id: <20240304130036.124418-5-pierrick.bouvier@linaro.org> Signed-off-by: Alex Bennée Message-Id: <20240305121005.3528075-18-alex.bennee@linaro.org> --- plugins/core.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'plugins/core.c') diff --git a/plugins/core.c b/plugins/core.c index 65d5611..7852590 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -332,6 +332,23 @@ void plugin_register_inline_op(GArray **arr, dyn_cb->inline_insn.imm = imm; } +void plugin_register_inline_op_on_entry(GArray **arr, + enum qemu_plugin_mem_rw rw, + enum qemu_plugin_op op, + qemu_plugin_u64 entry, + uint64_t imm) +{ + struct qemu_plugin_dyn_cb *dyn_cb; + + dyn_cb = plugin_get_dyn_cb(arr); + dyn_cb->userp = NULL; + dyn_cb->type = PLUGIN_CB_INLINE; + dyn_cb->rw = rw; + dyn_cb->inline_insn.entry = entry; + dyn_cb->inline_insn.op = op; + dyn_cb->inline_insn.imm = imm; +} + void plugin_register_dyn_cb__udata(GArray **arr, qemu_plugin_vcpu_udata_cb_t cb, enum qemu_plugin_cb_flags flags, @@ -480,6 +497,12 @@ void exec_inline_op(struct qemu_plugin_dyn_cb *cb, int cpu_index) char *ptr = cb->userp; size_t elem_size = 0; size_t offset = 0; + if (!ptr) { + /* use inline entry */ + ptr = cb->inline_insn.entry.score->data->data; + elem_size = g_array_get_element_size(cb->inline_insn.entry.score->data); + offset = cb->inline_insn.entry.offset; + } uint64_t *val = (uint64_t *)(ptr + offset + cpu_index * elem_size); switch (cb->inline_insn.op) { -- cgit v1.1