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From 8b2c0bd8595d7e175c04f80fbc3035cd538aab2b Mon Sep 17 00:00:00 2001
From: Vadim Rozenfeld <vrozenfe@redhat.com>
Date: Mon, 3 Mar 2014 12:09:21 +0100
Subject: [PATCH 09/12] target-i386: Convert 'hv_spinlocks' to static property
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RH-Author: Vadim Rozenfeld <vrozenfe@redhat.com>
Message-id: <1393848564-10511-10-git-send-email-vrozenfe@redhat.com>
Patchwork-id: 57965
O-Subject: [RHEL-7.0 qemu-kvm v4 PATCH 09/12] target-i386: Convert 'hv_spinlocks' to static property
Bugzilla: 1057173
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>

From: Igor Mammedov <imammedo@redhat.com>

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
(cherry picked from commit c8f0f88e2a4cf27bde27a31a98badd61fe212652)
---
 target-i386/cpu.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 target-i386/cpu.c |   45 ++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 44 insertions(+), 1 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 7a8cb01..db51f72 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1511,6 +1511,46 @@ static void x86_cpu_get_feature_words(Object *obj, Visitor *v, void *opaque,
     error_propagate(errp, err);
 }
 
+static void x86_get_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
+                                 const char *name, Error **errp)
+{
+    X86CPU *cpu = X86_CPU(obj);
+    int64_t value = cpu->hyperv_spinlock_attempts;
+
+    visit_type_int(v, &value, name, errp);
+}
+
+static void x86_set_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
+                                 const char *name, Error **errp)
+{
+    const int64_t min = 0xFFF;
+    const int64_t max = UINT_MAX;
+    X86CPU *cpu = X86_CPU(obj);
+    Error *err = NULL;
+    int64_t value;
+
+    visit_type_int(v, &value, name, &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    if (value < min || value > max) {
+        error_setg(errp, "Property %s.%s doesn't take value %" PRId64
+                  " (minimum: %" PRId64 ", maximum: %" PRId64 ")",
+                  object_get_typename(obj), name ? name : "null",
+                  value, min, max);
+        return;
+    }
+    cpu->hyperv_spinlock_attempts = value;
+}
+
+static PropertyInfo qdev_prop_spinlocks = {
+    .name  = "int",
+    .get   = x86_get_hv_spinlocks,
+    .set   = x86_set_hv_spinlocks,
+};
+
 static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def,
                                 const char *name)
 {
@@ -1628,6 +1668,7 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error **errp)
             } else if (!strcmp(featurestr, "hv-spinlocks")) {
                 char *err;
                 const int min = 0xFFF;
+                char num[32];
                 numvalue = strtoul(val, &err, 0);
                 if (!*val || *err) {
                     error_setg(errp, "bad numerical value %s", val);
@@ -1639,7 +1680,8 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error **errp)
                             min);
                     numvalue = min;
                 }
-                cpu->hyperv_spinlock_attempts = numvalue;
+                snprintf(num, sizeof(num), "%" PRId32, numvalue);
+                object_property_parse(OBJECT(cpu), num, featurestr, errp);
             } else {
                 error_setg(errp, "unrecognized feature %s", featurestr);
                 goto out;
@@ -2588,6 +2630,7 @@ static int64_t x86_cpu_get_arch_id(CPUState *cs)
 
 static Property x86_cpu_properties[] = {
     DEFINE_PROP_BOOL("pmu", X86CPU, enable_pmu, false),
+    { .name  = "hv-spinlocks", .info  = &qdev_prop_spinlocks },
     DEFINE_PROP_BOOL("hv-relaxed", X86CPU, hyperv_relaxed_timing, false),
     DEFINE_PROP_BOOL("hv-vapic", X86CPU, hyperv_vapic, false),
     DEFINE_PROP_END_OF_LIST()
-- 
1.7.1