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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::12a; envelope-from=alex.bennee@linaro.org; helo=mail-lf1-x12a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1699367227456100001 From: Akihiko Odaki The initialization and exit hooks will not affect the state of vCPU outside TCG context, but they may depend on the state of vCPU. Therefore, it's better to call plugin hooks after the vCPU state is fully initialized and before it gets uninitialized. Signed-off-by: Akihiko Odaki Reviewed-by: Alex Benn=C3=A9e Message-Id: <20231025093128.33116-16-akihiko.odaki@daynix.com> Signed-off-by: Alex Benn=C3=A9e Message-Id: <20231106185112.2755262-12-alex.bennee@linaro.org> diff --git a/cpu-target.c b/cpu-target.c index 79363ae370..00cd7f4d69 100644 --- a/cpu-target.c +++ b/cpu-target.c @@ -42,7 +42,6 @@ #include "hw/core/accel-cpu.h" #include "trace/trace-root.h" #include "qemu/accel.h" -#include "qemu/plugin.h" =20 uintptr_t qemu_host_page_size; intptr_t qemu_host_page_mask; @@ -143,11 +142,6 @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp) /* Wait until cpu initialization complete before exposing cpu. */ cpu_list_add(cpu); =20 - /* Plugin initialization must wait until cpu_index assigned. */ - if (tcg_enabled()) { - qemu_plugin_vcpu_init_hook(cpu); - } - #ifdef CONFIG_USER_ONLY assert(qdev_get_vmsd(DEVICE(cpu)) =3D=3D NULL || qdev_get_vmsd(DEVICE(cpu))->unmigratable); @@ -174,11 +168,6 @@ void cpu_exec_unrealizefn(CPUState *cpu) } #endif =20 - /* Call the plugin hook before clearing cpu->cpu_index in cpu_list_rem= ove */ - if (tcg_enabled()) { - qemu_plugin_vcpu_exit_hook(cpu); - } - cpu_list_remove(cpu); /* * Now that the vCPU has been removed from the RCU list, we can call diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c index bab8942c30..0acfed4c0f 100644 --- a/hw/core/cpu-common.c +++ b/hw/core/cpu-common.c @@ -209,6 +209,11 @@ static void cpu_common_realizefn(DeviceState *dev, Err= or **errp) cpu_resume(cpu); } =20 + /* Plugin initialization must wait until the cpu is fully realized. */ + if (tcg_enabled()) { + qemu_plugin_vcpu_init_hook(cpu); + } + /* NOTE: latest generic point where the cpu is fully realized */ } =20 @@ -216,6 +221,11 @@ static void cpu_common_unrealizefn(DeviceState *dev) { CPUState *cpu =3D CPU(dev); =20 + /* Call the plugin hook before clearing the cpu is fully unrealized */ + if (tcg_enabled()) { + qemu_plugin_vcpu_exit_hook(cpu); + } + /* NOTE: latest generic point before the cpu is fully unrealized */ cpu_exec_unrealizefn(cpu); } --=20 2.39.2