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plugins: implement inline operation relative to cpu_index

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Instead of working on a fixed memory location, allow to address it based
on cpu_index, an element size and a given offset.
Result address: ptr + offset + cpu_index * element_size.

With this, we can target a member in a struct array from a base pointer.

Current semantic is not modified, thus inline operation still targets
always the same memory location.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240304130036.124418-4-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-17-alex.bennee@linaro.org>
This commit is contained in:
Pierrick Bouvier 2024-03-05 12:09:52 +00:00 • committed by Alex Bennée
parent 8042e2eadf
commit 62f92b8d97
4 changed files with 67 additions and 19 deletions
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2
plugins/plugin.h
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@ -99,7 +99,7 @@ void plugin_register_vcpu_mem_cb(GArray **arr,
enum qemu_plugin_mem_rw rw,
void *udata);
void exec_inline_op(struct qemu_plugin_dyn_cb *cb);
void exec_inline_op(struct qemu_plugin_dyn_cb *cb, int cpu_index);
int plugin_num_vcpus(void);