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plugins: create CPUPluginState and migrate plugin_mask

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As we expand the per-vCPU data for plugins we don't want to pollute
CPUState. For now this just moves the plugin_mask (renamed to
event_mask) as the memory callbacks are accessed directly by TCG
generated code.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-23-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2024-02-27 14:43:28 +00:00
parent c3d0b46645
commit c006147122
6 changed files with 38 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

13
plugins/core.c
View file

@ -17,6 +17,7 @@
#include "qapi/error.h"
#include "qemu/lockable.h"
#include "qemu/option.h"
#include "qemu/plugin.h"
#include "qemu/rcu_queue.h"
#include "qemu/xxhash.h"
#include "qemu/rcu.h"
@ -53,7 +54,8 @@ struct qemu_plugin_ctx *plugin_id_to_ctx_locked(qemu_plugin_id_t id)
static void plugin_cpu_update__async(CPUState *cpu, run_on_cpu_data data)
{
bitmap_copy(cpu->plugin_mask, &data.host_ulong, QEMU_PLUGIN_EV_MAX);
bitmap_copy(cpu->plugin_state->event_mask,
&data.host_ulong, QEMU_PLUGIN_EV_MAX);
tcg_flush_jmp_cache(cpu);
}
@ -208,6 +210,11 @@ plugin_register_cb_udata(qemu_plugin_id_t id, enum qemu_plugin_event ev,
do_plugin_register_cb(id, ev, func, udata);
}
CPUPluginState *qemu_plugin_create_vcpu_state(void)
{
return g_new0(CPUPluginState, 1);
}
void qemu_plugin_vcpu_init_hook(CPUState *cpu)
{
bool success;
@ -356,7 +363,7 @@ qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t a2,
struct qemu_plugin_cb *cb, *next;
enum qemu_plugin_event ev = QEMU_PLUGIN_EV_VCPU_SYSCALL;
if (!test_bit(ev, cpu->plugin_mask)) {
if (!test_bit(ev, cpu->plugin_state->event_mask)) {
return;
}
@ -378,7 +385,7 @@ void qemu_plugin_vcpu_syscall_ret(CPUState *cpu, int64_t num, int64_t ret)
struct qemu_plugin_cb *cb, *next;
enum qemu_plugin_event ev = QEMU_PLUGIN_EV_VCPU_SYSCALL_RET;
if (!test_bit(ev, cpu->plugin_mask)) {
if (!test_bit(ev, cpu->plugin_state->event_mask)) {
return;
}