maintainer updates for testing, plugins and gdbstub

[PULL 27/40] plugins: Ensure vCPU index is assigned in init/exit hooks

Alex Bennée posted 40 patches 4 months, 3 weeks ago

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Maintainers: "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Thomas Huth <thuth@redhat.com>, Wainer dos Santos Moschetta <wainersm@redhat.com>, Beraldo Leal <bleal@redhat.com>, Laurent Vivier <laurent@vivier.eu>, Paolo Bonzini <pbonzini@redhat.com>, Alexandre Iooss <erdnaxe@crans.org>, Mahmoud Mandour <ma.mandourr@gmail.com>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Yanan Wang <wangyanan55@huawei.com>, Paul Burton <paulburton@kernel.org>, Aleksandar Rikalo <arikalo@gmail.com>, Peter Xu <peterx@redhat.com>, David Hildenbrand <david@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Stefan Hajnoczi <stefanha@redhat.com>, Mads Ynddal <mads@ynddal.dk>

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[PULL 27/40] plugins: Ensure vCPU index is assigned in init/exit hooks

Posted by Alex Bennée 4 months, 3 weeks ago

From: Philippe Mathieu-Daudé <philmd@linaro.org>

Since vCPUs are hashed by their index, this index can't
be uninitialized (UNASSIGNED_CPU_INDEX).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240606124010.2460-2-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-28-alex.bennee@linaro.org>

diff --git a/plugins/core.c b/plugins/core.c
index 9d737d8278..a864275ae7 100644
--- a/plugins/core.c
+++ b/plugins/core.c
@@ -245,6 +245,7 @@ void qemu_plugin_vcpu_init_hook(CPUState *cpu)
 {
     bool success;
 
+    assert(cpu->cpu_index != UNASSIGNED_CPU_INDEX);
     qemu_rec_mutex_lock(&plugin.lock);
     plugin.num_vcpus = MAX(plugin.num_vcpus, cpu->cpu_index + 1);
     plugin_cpu_update__locked(&cpu->cpu_index, NULL, NULL);
@@ -263,6 +264,7 @@ void qemu_plugin_vcpu_exit_hook(CPUState *cpu)
 
     plugin_vcpu_cb__simple(cpu, QEMU_PLUGIN_EV_VCPU_EXIT);
 
+    assert(cpu->cpu_index != UNASSIGNED_CPU_INDEX);
     qemu_rec_mutex_lock(&plugin.lock);
     success = g_hash_table_remove(plugin.cpu_ht, &cpu->cpu_index);
     g_assert(success);
-- 
2.39.2