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plugins: conditional callbacks

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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 <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240502211522.346467-6-pierrick.bouvier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
[AJB: fix re-base conflict with tb_is_mem_only()]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240514174253.694591-8-alex.bennee@linaro.org>
This commit is contained in:
Pierrick Bouvier 2024-05-14 18:42:49 +01:00 • committed by Alex Bennée
parent a1c9bf2514
commit 7de77d3788
7 changed files with 213 additions and 0 deletions
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2
plugins/qemu-plugins.symbols
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@ -27,6 +27,7 @@
qemu_plugin_register_vcpu_idle_cb;
qemu_plugin_register_vcpu_init_cb;
qemu_plugin_register_vcpu_insn_exec_cb;
qemu_plugin_register_vcpu_insn_exec_cond_cb;
qemu_plugin_register_vcpu_insn_exec_inline_per_vcpu;
qemu_plugin_register_vcpu_mem_cb;
qemu_plugin_register_vcpu_mem_inline_per_vcpu;
@ -34,6 +35,7 @@
qemu_plugin_register_vcpu_syscall_cb;
qemu_plugin_register_vcpu_syscall_ret_cb;
qemu_plugin_register_vcpu_tb_exec_cb;
qemu_plugin_register_vcpu_tb_exec_cond_cb;
qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu;
qemu_plugin_register_vcpu_tb_trans_cb;
qemu_plugin_reset;