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[Qemu-devel] [PATCH v5 15/17] target-i386: Add setting of Hypervisor lea
From: |
Don Slutz |
Subject: |
[Qemu-devel] [PATCH v5 15/17] target-i386: Add setting of Hypervisor leaf extra for known vmare4. |
Date: |
Fri, 21 Sep 2012 20:13:27 -0400 |
This was taken from:
http://article.gmane.org/gmane.comp.emulators.kvm.devel/22643
Signed-off-by: Don Slutz <address@hidden>
---
target-i386/cpu.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 2423090..e8a21b5 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1135,6 +1135,36 @@ static void x86_cpuid_set_model_id(Object *obj, const
char *model_id,
}
}
+static void x86_cpuid_set_vmware_extra(Object *obj)
+{
+ X86CPU *cpu = X86_CPU(obj);
+
+ if ((cpu->env.tsc_khz != 0) &&
+ (cpu->env.cpuid_hv_level == CPUID_HV_LEVEL_VMWARE_4) &&
+ (cpu->env.cpuid_hv_vendor1 == CPUID_HV_VENDOR_VMWARE_1) &&
+ (cpu->env.cpuid_hv_vendor2 == CPUID_HV_VENDOR_VMWARE_2) &&
+ (cpu->env.cpuid_hv_vendor3 == CPUID_HV_VENDOR_VMWARE_3)) {
+ const uint32_t apic_khz = 1000000L;
+
+ /*
+ * From article.gmane.org/gmane.comp.emulators.kvm.devel/22643
+ *
+ * Leaf 0x40000010, Timing Information.
+ *
+ * VMware has defined the first generic leaf to provide timing
+ * information. This leaf returns the current TSC frequency and
+ * current Bus frequency in kHz.
+ *
+ * # EAX: (Virtual) TSC frequency in kHz.
+ * # EBX: (Virtual) Bus (local apic timer) frequency in kHz.
+ * # ECX, EDX: RESERVED (Per above, reserved fields are set to
zero).
+ */
+ cpu->env.cpuid_hv_extra = 0x40000010;
+ cpu->env.cpuid_hv_extra_a = (uint32_t)cpu->env.tsc_khz;
+ cpu->env.cpuid_hv_extra_b = apic_khz;
+ }
+}
+
static void x86_cpuid_get_tsc_freq(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
@@ -1164,6 +1194,7 @@ static void x86_cpuid_set_tsc_freq(Object *obj, Visitor
*v, void *opaque,
}
cpu->env.tsc_khz = value / 1000;
+ x86_cpuid_set_vmware_extra(obj);
}
static void x86_cpuid_get_hv_level(Object *obj, Visitor *v, void *opaque,
@@ -1277,6 +1308,7 @@ static void x86_cpuid_set_hv_vendor(Object *obj, const
char *value,
env->cpuid_hv_vendor3 |= ((uint8_t)adj_value[i + 8]) << (8 * i);
}
env->cpuid_hv_vendor_set = true;
+ x86_cpuid_set_vmware_extra(obj);
}
static void x86_cpuid_get_hv_extra(Object *obj, Visitor *v, void *opaque,
--
1.7.1
- [Qemu-devel] [PATCH v5 02/17] target-i386: Add missing kvm bits., (continued)
- [Qemu-devel] [PATCH v5 02/17] target-i386: Add missing kvm bits., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 03/17] target-i386: Add Hypervisor level., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 05/17] target-i386: Add cpu object access routines for Hypervisor level., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 04/17] target-i386: Add cpu object access routines for Hypervisor level., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 06/17] target-i386: Use Hypervisor level in -machine pc, accel=kvm., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 07/17] target-i386: Use Hypervisor level in -machine pc, accel=tcg., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 08/17] target-i386: Add Hypervisor vendor., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 09/17] target-i386: Add cpu object access routines for Hypervisor vendor., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 10/17] target-i386: Use Hypervisor vendor in -machine pc, accel=kvm., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 14/17] target-i386: Add cpu object access routines for Hypervisor leaf extra., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 15/17] target-i386: Add setting of Hypervisor leaf extra for known vmare4.,
Don Slutz <=
- [Qemu-devel] [PATCH v5 16/17] target-i386: Use Hypervisor leaf extra in -machine pc, accel=kvm., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 11/17] target-i386: Use Hypervisor vendor in -machine pc, accel=tcg., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 13/17] target-i386: Add optional Hypervisor leaf extra., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 12/17] target-i386: Add some known names to Hypervisor vendor., Don Slutz, 2012/09/21
- [Qemu-devel] [PATCH v5 17/17] target-i386: Use Hypervisor leaf extra in -machine pc, accel=tcg., Don Slutz, 2012/09/21
- Re: [Qemu-devel] [PATCH v5 00/17] Allow changing of Hypervisor CPUIDs., Blue Swirl, 2012/09/22