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[Qemu-devel] [PATCH for-2.4 v5 7/7] tests: test-x86-cpu: Ensure that -cp
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH for-2.4 v5 7/7] tests: test-x86-cpu: Ensure that -cpu override KVM-specific defaults |
Date: |
Mon, 23 Mar 2015 16:37:12 -0300 |
Add a test case to ensure reordering the feature handling code won't
make accelerator-specific defaults override explicit command-line
options. Explicit command-line options should always override the CPU
model defaults.
Signed-off-by: Eduardo Habkost <address@hidden>
---
tests/test-x86-cpu.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/tests/test-x86-cpu.c b/tests/test-x86-cpu.c
index b1b04ea..618624b 100644
--- a/tests/test-x86-cpu.c
+++ b/tests/test-x86-cpu.c
@@ -160,6 +160,36 @@ static void test_host_cpu_features_kvm(void)
all_unsupported = false;
}
+/* Ensure that explicit CPU options always override KVM-specific defaults */
+static void test_kvm_override(void)
+{
+ int i;
+ kvm_allowed = true;
+
+ /* Even KVM defaults change on cpu.c, this test relies on x2apic being
+ * always enabled, and monitor being always disabled by KVM:
+ */
+ kvm_default_features[FEAT_1_ECX] |= CPUID_EXT_X2APIC;
+ kvm_default_unset_features[FEAT_1_ECX] |= CPUID_EXT_MONITOR;
+
+ for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); ++i) {
+ ObjectClass *oc;
+ X86CPU *cpu;
+ X86CPUDefinition *def = &builtin_x86_defs[i];
+ char features[] = "-x2apic,+monitor";
+
+ oc = x86_cpu_class_by_name(def->name);
+ cpu = X86_CPU(object_new(object_class_get_name(oc)));
+ x86_cpu_parse_featurestr(CPU(cpu), features, &error_abort);
+
+ g_assert_cmpint(cpu->env.features[FEAT_1_ECX] & CPUID_EXT_MONITOR, ==,
+ CPUID_EXT_MONITOR);
+ g_assert_cmpint(cpu->env.features[FEAT_1_ECX] & CPUID_EXT_X2APIC, ==,
+ 0);
+ object_unref(OBJECT(cpu));
+ }
+}
+
int main(int argc, char *argv[])
{
module_call_init(MODULE_INIT_QOM);
@@ -170,6 +200,7 @@ int main(int argc, char *argv[])
g_test_add_func("/cpu/x86/features/tcg", test_cpu_features_tcg);
g_test_add_func("/cpu/x86/features/kvm", test_cpu_features_kvm);
g_test_add_func("/cpu/x86/features/host", test_host_cpu_features_kvm);
+ g_test_add_func("/cpu/x86/features/kvm-override", test_kvm_override);
g_test_run();
--
2.1.0
- [Qemu-devel] [PATCH for-2.4 v5 0/7] Target-specific unit test support, add unit tests for target-i386/cpu.c code, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 1/7] tests: Support target-specific unit tests, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 2/7] tests: Make test-x86-cpuid target-specific, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 4/7] target-i386: Isolate enabled-by-default features to a separate array, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 5/7] tests: test-x86-cpu: Add TCG feature bit initialization test, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 3/7] tests: Add unit test for X86CPU code, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 6/7] tests: test-x86-cpu: Add KVM feature bit initialization test, Eduardo Habkost, 2015/03/23
- [Qemu-devel] [PATCH for-2.4 v5 7/7] tests: test-x86-cpu: Ensure that -cpu override KVM-specific defaults,
Eduardo Habkost <=