[PULL 0/3] Machine-next patches for 2021-11-15

[PULL 0/3] Machine-next patches for 2021-11-15

[Philippe Mathieu-Daudé]

The following changes since commit 42f6c9179be4401974dd3a75ee72defd16b5092d:

  Merge tag 'pull-ppc-20211112' of https://github.com/legoater/qemu into staging (2021-11-12 12:28:25 +0100)

are available in the Git repository at:

  https://github.com/philmd/qemu.git tags/machine-core-20211115

for you to fetch changes up to 7b6d1bc9629f3dd45647ec3418e0606a92dddd48:

  tests/unit/test-smp-parse: Explicit MachineClass name (2021-11-15 21:49:16 +0100)

----------------------------------------------------------------
Machine core patches

- Rework SMP parsing unit test to work on WinGW:

  https://github.com/qemu/qemu/runs/4078386652

  This fixes:

    Test smp_parse failed!
    Expected error report: Invalid SMP CPUs 1. The min CPUs supported by machine '(null)' is 2
      Output error report: Invalid SMP CPUs 1. The min CPUs supported by machine '(NULL)' is 2

----------------------------------------------------------------

Philippe Mathieu-Daudé (3):
  tests/unit/test-smp-parse: Restore MachineClass fields after modifying
  tests/unit/test-smp-parse: QOM'ify smp_machine_class_init()
  tests/unit/test-smp-parse: Explicit MachineClass name

 tests/unit/test-smp-parse.c | 52 +++++++++++++++++++++++--------------
 1 file changed, 33 insertions(+), 19 deletions(-)

-- 
2.31.1

[PULL 1/3] tests/unit/test-smp-parse: Restore MachineClass fields after modifying

[Philippe Mathieu-Daudé]

There is a single MachineClass object, registered with
type_register_static(&smp_machine_info). Since the same
object is used multiple times (an MachineState object
is instantiated in both test_generic and test_with_dies),
we should restore its internal state after modifying for
the test purpose.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211115145900.2531865-2-philmd@redhat.com>
---
 tests/unit/test-smp-parse.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
index cbe0c990494..47774c1ee2a 100644
--- a/tests/unit/test-smp-parse.c
+++ b/tests/unit/test-smp-parse.c
@@ -512,7 +512,7 @@ static void test_generic(void)
         smp_parse_test(ms, data, true);
     }
 
-    /* Reset the supported min CPUs and max CPUs */
+    /* Force invalid min CPUs and max CPUs */
     mc->min_cpus = 2;
     mc->max_cpus = 511;
 
@@ -523,6 +523,10 @@ static void test_generic(void)
         smp_parse_test(ms, data, false);
     }
 
+    /* Reset the supported min CPUs and max CPUs */
+    mc->min_cpus = MIN_CPUS;
+    mc->max_cpus = MAX_CPUS;
+
     object_unref(obj);
 }
 
@@ -536,6 +540,7 @@ static void test_with_dies(void)
     int i;
 
     smp_machine_class_init(mc);
+    /* Force the SMP compat properties */
     mc->smp_props.dies_supported = true;
 
     for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
@@ -575,6 +580,9 @@ static void test_with_dies(void)
         smp_parse_test(ms, data, false);
     }
 
+    /* Restore the SMP compat properties */
+    mc->smp_props.dies_supported = false;
+
     object_unref(obj);
 }
 
-- 
2.31.1

[PULL 2/3] tests/unit/test-smp-parse: QOM'ify smp_machine_class_init()

[Philippe Mathieu-Daudé]

smp_machine_class_init() is the actual TypeInfo::class_init().
Declare it as such in smp_machine_info, and avoid to call it
manually in each test. Move smp_machine_info definition just
before we register the type to avoid a forward declaration.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211115145900.2531865-3-philmd@redhat.com>
---
 tests/unit/test-smp-parse.c | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
index 47774c1ee2a..3fff2af4e27 100644
--- a/tests/unit/test-smp-parse.c
+++ b/tests/unit/test-smp-parse.c
@@ -75,14 +75,6 @@ typedef struct SMPTestData {
     const char *expect_error;
 } SMPTestData;
 
-/* Type info of the tested machine */
-static const TypeInfo smp_machine_info = {
-    .name = TYPE_MACHINE,
-    .parent = TYPE_OBJECT,
-    .class_size = sizeof(MachineClass),
-    .instance_size = sizeof(MachineState),
-};
-
 /*
  * List all the possible valid sub-collections of the generic 5
  * topology parameters (i.e. cpus/maxcpus/sockets/cores/threads),
@@ -480,9 +472,10 @@ static void unsupported_params_init(MachineClass *mc, SMPTestData *data)
     }
 }
 
-/* Reset the related machine properties before each sub-test */
-static void smp_machine_class_init(MachineClass *mc)
+static void machine_base_class_init(ObjectClass *oc, void *data)
 {
+    MachineClass *mc = MACHINE_CLASS(oc);
+
     mc->min_cpus = MIN_CPUS;
     mc->max_cpus = MAX_CPUS;
 
@@ -498,8 +491,6 @@ static void test_generic(void)
     SMPTestData *data = &(SMPTestData){{ }};
     int i;
 
-    smp_machine_class_init(mc);
-
     for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
         *data = data_generic_valid[i];
         unsupported_params_init(mc, data);
@@ -539,7 +530,6 @@ static void test_with_dies(void)
     unsigned int num_dies = 2;
     int i;
 
-    smp_machine_class_init(mc);
     /* Force the SMP compat properties */
     mc->smp_props.dies_supported = true;
 
@@ -586,12 +576,24 @@ static void test_with_dies(void)
     object_unref(obj);
 }
 
+/* Type info of the tested machine */
+static const TypeInfo smp_machine_types[] = {
+    {
+        .name           = TYPE_MACHINE,
+        .parent         = TYPE_OBJECT,
+        .class_init     = machine_base_class_init,
+        .class_size     = sizeof(MachineClass),
+        .instance_size  = sizeof(MachineState),
+    }
+};
+
+DEFINE_TYPES(smp_machine_types)
+
 int main(int argc, char *argv[])
 {
-    g_test_init(&argc, &argv, NULL);
-
     module_call_init(MODULE_INIT_QOM);
-    type_register_static(&smp_machine_info);
+
+    g_test_init(&argc, &argv, NULL);
 
     g_test_add_func("/test-smp-parse/generic", test_generic);
     g_test_add_func("/test-smp-parse/with_dies", test_with_dies);
-- 
2.31.1

[PULL 3/3] tests/unit/test-smp-parse: Explicit MachineClass name

[Philippe Mathieu-Daudé]

If the MachineClass::name pointer is not explicitly set, it is NULL.
Per the C standard, passing a NULL pointer to printf "%s" format is
undefined. Some implementations display it as 'NULL', other as 'null'.
Since we are comparing the formatted output, we need a stable value.
The easiest is to explicit a machine name string.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211115145900.2531865-4-philmd@redhat.com>
---
 tests/unit/test-smp-parse.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
index 3fff2af4e27..b02450e25a3 100644
--- a/tests/unit/test-smp-parse.c
+++ b/tests/unit/test-smp-parse.c
@@ -23,6 +23,8 @@
 #define MIN_CPUS 1   /* set the min CPUs supported by the machine as 1 */
 #define MAX_CPUS 512 /* set the max CPUs supported by the machine as 512 */
 
+#define SMP_MACHINE_NAME "TEST-SMP"
+
 /*
  * Used to define the generic 3-level CPU topology hierarchy
  *  -sockets/cores/threads
@@ -307,13 +309,13 @@ static struct SMPTestData data_generic_invalid[] = {
          * should tweak the supported min CPUs to 2 for testing */
         .config = SMP_CONFIG_GENERIC(T, 1, F, 0, F, 0, F, 0, F, 0),
         .expect_error = "Invalid SMP CPUs 1. The min CPUs supported "
-                        "by machine '(null)' is 2",
+                        "by machine '" SMP_MACHINE_NAME "' is 2",
     }, {
         /* config: -smp 512
          * should tweak the supported max CPUs to 511 for testing */
         .config = SMP_CONFIG_GENERIC(T, 512, F, 0, F, 0, F, 0, F, 0),
         .expect_error = "Invalid SMP CPUs 512. The max CPUs supported "
-                        "by machine '(null)' is 511",
+                        "by machine '" SMP_MACHINE_NAME "' is 511",
     },
 };
 
@@ -481,6 +483,8 @@ static void machine_base_class_init(ObjectClass *oc, void *data)
 
     mc->smp_props.prefer_sockets = true;
     mc->smp_props.dies_supported = false;
+
+    mc->name = g_strdup(SMP_MACHINE_NAME);
 }
 
 static void test_generic(void)
-- 
2.31.1

Re: [PULL 0/3] Machine-next patches for 2021-11-15

[Richard Henderson]

On 11/15/21 11:47 PM, Philippe Mathieu-Daudé wrote:
> The following changes since commit 42f6c9179be4401974dd3a75ee72defd16b5092d:
> 
>    Merge tag 'pull-ppc-20211112' of https://github.com/legoater/qemu into staging (2021-11-12 12:28:25 +0100)
> 
> are available in the Git repository at:
> 
>    https://github.com/philmd/qemu.git tags/machine-core-20211115
> 
> for you to fetch changes up to 7b6d1bc9629f3dd45647ec3418e0606a92dddd48:
> 
>    tests/unit/test-smp-parse: Explicit MachineClass name (2021-11-15 21:49:16 +0100)
> 
> ----------------------------------------------------------------
> Machine core patches
> 
> - Rework SMP parsing unit test to work on WinGW:
> 
>    https://github.com/qemu/qemu/runs/4078386652
> 
>    This fixes:
> 
>      Test smp_parse failed!
>      Expected error report: Invalid SMP CPUs 1. The min CPUs supported by machine '(null)' is 2
>        Output error report: Invalid SMP CPUs 1. The min CPUs supported by machine '(NULL)' is 2
> 
> ----------------------------------------------------------------
> 
> Philippe Mathieu-Daudé (3):
>    tests/unit/test-smp-parse: Restore MachineClass fields after modifying
>    tests/unit/test-smp-parse: QOM'ify smp_machine_class_init()
>    tests/unit/test-smp-parse: Explicit MachineClass name
> 
>   tests/unit/test-smp-parse.c | 52 +++++++++++++++++++++++--------------
>   1 file changed, 33 insertions(+), 19 deletions(-)

Applied, thanks.

r~