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From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Laurent Vivier <laurent@vivier.eu>, qemu-devel@nongnu.org
Cc: "Eduardo Habkost" <ehabkost@redhat.com>,
	qemu-trivial@nongnu.org,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Michael Tokarev" <mjt@tls.msk.ru>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Richard Henderson" <rth@twiddle.net>
Subject: [PATCH v4 2/3] target/i386/cpu: Restrict some of feature-words uses to system-mode
Date: Thu,  1 Oct 2020 16:41:51 +0200	[thread overview]
Message-ID: <20201001144152.1555659-3-philmd@redhat.com> (raw)
In-Reply-To: <20201001144152.1555659-1-philmd@redhat.com>

The feature-words properties are not used in user-mode emulation,
restrict it to system-mode.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 target/i386/cpu.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 2eec53ca22..9f72342506 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -4607,6 +4607,7 @@ static void x86_cpuid_set_tsc_freq(Object *obj, Visitor *v, const char *name,
     cpu->env.tsc_khz = cpu->env.user_tsc_khz = value / 1000;
 }
 
+#if !defined(CONFIG_USER_ONLY)
 /* Generic getter for "feature-words" and "filtered-features" properties */
 static void x86_cpu_get_feature_words(Object *obj, Visitor *v,
                                       const char *name, void *opaque,
@@ -4666,6 +4667,7 @@ static const char *x86_cpu_feature_name(FeatureWord w, int bitnr)
     assert(bitnr < 32 || !(name && feature_word_info[w].type == CPUID_FEATURE_WORD));
     return name;
 }
+#endif /* CONFIG_USER_ONLY */
 
 /*
  * Convert all '_' in a feature string option name to '-', to make feature
@@ -4783,6 +4785,7 @@ static void x86_cpu_parse_featurestr(const char *typename, char *features,
 static void x86_cpu_expand_features(X86CPU *cpu, Error **errp);
 static void x86_cpu_filter_features(X86CPU *cpu, bool verbose);
 
+#if !defined(CONFIG_USER_ONLY)
 /* Build a list with the name of all features on a feature word array */
 static void x86_cpu_list_feature_names(FeatureWordArray features,
                                        strList **feat_names)
@@ -4853,6 +4856,7 @@ static void x86_cpu_class_check_missing_features(X86CPUClass *xcc,
 
     object_unref(OBJECT(xc));
 }
+#endif /* CONFIG_USER_ONLY */
 
 /* Print all cpuid feature names in featureset
  */
@@ -4987,7 +4991,9 @@ static void x86_cpu_definition_entry(gpointer data, gpointer user_data)
 
     info = g_malloc0(sizeof(*info));
     info->name = x86_cpu_class_get_model_name(cc);
+#if !defined(CONFIG_USER_ONLY)
     x86_cpu_class_check_missing_features(cc, &info->unavailable_features);
+#endif
     info->has_unavailable_features = true;
     info->q_typename = g_strdup(object_class_get_name(oc));
     info->migration_safe = cc->migration_safe;
@@ -6941,6 +6947,7 @@ static void x86_cpu_initfn(Object *obj)
     object_property_add(obj, "tsc-frequency", "int",
                         x86_cpuid_get_tsc_freq,
                         x86_cpuid_set_tsc_freq, NULL, NULL);
+#if !defined(CONFIG_USER_ONLY)
     object_property_add(obj, "feature-words", "X86CPUFeatureWordInfo",
                         x86_cpu_get_feature_words,
                         NULL, NULL, (void *)env->features);
@@ -6957,7 +6964,6 @@ static void x86_cpu_initfn(Object *obj)
                         x86_cpu_get_unavailable_features,
                         NULL, NULL, NULL);
 
-#if !defined(CONFIG_USER_ONLY)
     object_property_add(obj, "crash-information", "GuestPanicInformation",
                         x86_cpu_get_crash_info_qom, NULL, NULL, NULL);
 #endif
-- 
2.26.2



  parent reply	other threads:[~2020-10-01 14:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-01 14:41 [PATCH v4 0/3] target/i386: Restrict 'feature-words' property to x86 machines Philippe Mathieu-Daudé
2020-10-01 14:41 ` [PATCH v4 1/3] target/i386/cpu: Trivial code movement Philippe Mathieu-Daudé
2020-10-01 14:41 ` Philippe Mathieu-Daudé [this message]
2020-10-01 14:44   ` [PATCH v4 2/3] target/i386/cpu: Restrict some of feature-words uses to system-mode Philippe Mathieu-Daudé
2020-10-01 15:14   ` Paolo Bonzini
2020-10-01 15:27     ` Philippe Mathieu-Daudé
2020-10-01 15:37       ` Eduardo Habkost
2020-10-01 15:57         ` Philippe Mathieu-Daudé
2020-10-01 16:15           ` Eduardo Habkost
2020-10-01 14:41 ` [PATCH v4 3/3] target/i386: Restrict X86CPUFeatureWord to X86 targets Philippe Mathieu-Daudé
2020-10-01 15:29   ` Eduardo Habkost
2020-10-01 15:37     ` Philippe Mathieu-Daudé
2020-10-01 15:53       ` Eduardo Habkost
2020-10-02  6:55     ` Markus Armbruster

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