diff options
| author | Pierrick Bouvier <pierrick.bouvier@linaro.org> | 2024-05-14 18:42:49 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-05-16 08:55:02 +0100 |
| commit | 7de77d37880d7267a491cb32a1b2232017d1e545 (patch) | |
| tree | 70d92e3875ebf046b953d163b1999310a30865b6 /plugins/core.c | |
| parent | a1c9bf2514d82b757288ee61584e667ddcb19a4f (diff) | |
plugins: conditional callbacks
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>
Diffstat (limited to 'plugins/core.c')
| -rw-r--r-- | plugins/core.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/plugins/core.c b/plugins/core.c index 848d482fc4..332474a5bc 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -371,6 +371,38 @@ void plugin_register_dyn_cb__udata(GArray **arr, dyn_cb->regular.info = &info[flags]; } +void plugin_register_dyn_cond_cb__udata(GArray **arr, + 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) +{ + static TCGHelperInfo info[3] = { + [QEMU_PLUGIN_CB_NO_REGS].flags = TCG_CALL_NO_RWG, + [QEMU_PLUGIN_CB_R_REGS].flags = TCG_CALL_NO_WG, + /* + * Match qemu_plugin_vcpu_udata_cb_t: + * void (*)(uint32_t, void *) + */ + [0 ... 2].typemask = (dh_typemask(void, 0) | + dh_typemask(i32, 1) | + dh_typemask(ptr, 2)) + }; + + struct qemu_plugin_dyn_cb *dyn_cb = plugin_get_dyn_cb(arr); + dyn_cb->userp = udata; + dyn_cb->type = PLUGIN_CB_COND; + dyn_cb->cond.f.vcpu_udata = cb; + dyn_cb->cond.cond = cond; + dyn_cb->cond.entry = entry; + dyn_cb->cond.imm = imm; + + assert((unsigned)flags < ARRAY_SIZE(info)); + dyn_cb->cond.info = &info[flags]; +} + void plugin_register_vcpu_mem_cb(GArray **arr, void *cb, enum qemu_plugin_cb_flags flags, |