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[Qemu-devel] [PATCH v3 09/17] target-i386: Add cpu object access routine
From: |
Don Slutz |
Subject: |
[Qemu-devel] [PATCH v3 09/17] target-i386: Add cpu object access routines for Hypervisor vendor. |
Date: |
Mon, 17 Sep 2012 09:39:39 -0400 |
These are modeled after x86_cpuid_set_vendor and x86_cpuid_get_vendor.
Since kvm's vendor is shorter, the test for correct size is removed and zero
padding is added.
Signed-off-by: Don Slutz <address@hidden>
---
target-i386/cpu.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 44 insertions(+), 0 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index d3b9bd8..5afb188 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1191,12 +1191,53 @@ static void x86_cpuid_set_hv_level(Object *obj, Visitor
*v, void *opaque,
cpu->env.cpuid_hv_level = value;
}
+static char *x86_cpuid_get_hv_vendor(Object *obj, Error **errp)
+{
+ X86CPU *cpu = X86_CPU(obj);
+ CPUX86State *env = &cpu->env;
+ char *value;
+ int i;
+
+ value = (char *)g_malloc(CPUID_VENDOR_SZ + 1);
+ for (i = 0; i < 4; i++) {
+ value[i + 0] = env->cpuid_hv_vendor1 >> (8 * i);
+ value[i + 4] = env->cpuid_hv_vendor2 >> (8 * i);
+ value[i + 8] = env->cpuid_hv_vendor3 >> (8 * i);
+ }
+ value[CPUID_VENDOR_SZ] = '\0';
+
+ return value;
+}
+
+static void x86_cpuid_set_hv_vendor(Object *obj, const char *value,
+ Error **errp)
+{
+ X86CPU *cpu = X86_CPU(obj);
+ CPUX86State *env = &cpu->env;
+ int i;
+ char adj_value[CPUID_VENDOR_SZ + 1];
+
+ memset(adj_value, 0, sizeof(adj_value));
+
+ pstrcpy(adj_value, sizeof(adj_value), value);
+
+ env->cpuid_hv_vendor1 = 0;
+ env->cpuid_hv_vendor2 = 0;
+ env->cpuid_hv_vendor3 = 0;
+ for (i = 0; i < 4; i++) {
+ env->cpuid_hv_vendor1 |= ((uint8_t)adj_value[i + 0]) << (8 * i);
+ env->cpuid_hv_vendor2 |= ((uint8_t)adj_value[i + 4]) << (8 * i);
+ env->cpuid_hv_vendor3 |= ((uint8_t)adj_value[i + 8]) << (8 * i);
+ }
+}
+
#if !defined(CONFIG_USER_ONLY)
static void x86_set_hyperv(Object *obj, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
cpu->env.cpuid_hv_level = HYPERV_CPUID_MIN;
+ x86_cpuid_set_hv_vendor(obj, "Microsoft Hv", errp);
}
static void x86_get_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
@@ -2121,6 +2162,9 @@ static void x86_cpu_initfn(Object *obj)
object_property_add(obj, "hypervisor-level", "int",
x86_cpuid_get_hv_level,
x86_cpuid_set_hv_level, NULL, NULL, NULL);
+ object_property_add_str(obj, "hypervisor-vendor",
+ x86_cpuid_get_hv_vendor,
+ x86_cpuid_set_hv_vendor, NULL);
#if !defined(CONFIG_USER_ONLY)
object_property_add(obj, "hv_spinlocks", "int",
x86_get_hv_spinlocks,
--
1.7.1
- [Qemu-devel] [PATCH v3 09/17] target-i386: Add cpu object access routines for Hypervisor vendor.,
Don Slutz <=