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[Qemu-devel] [PATCH v5 10/17] target-i386: Use Hypervisor vendor in -mac
From: |
Don Slutz |
Subject: |
[Qemu-devel] [PATCH v5 10/17] target-i386: Use Hypervisor vendor in -machine pc, accel=kvm. |
Date: |
Fri, 21 Sep 2012 20:13:22 -0400 |
Also known as Paravirtualization vendor.
This change is based on:
Microsoft Hypervisor CPUID Leaves:
http://msdn.microsoft.com/en-us/library/windows/hardware/ff542428%28v=vs.85%29.aspx
Linux kernel change starts with:
http://fixunix.com/kernel/538707-use-cpuid-communicate-hypervisor.html
Also:
http://lkml.indiana.edu/hypermail/linux/kernel/1205.0/00100.html
VMware documention on CPUIDs (Mechanisms to determine if software is
running in a VMware virtual machine):
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458
Signed-off-by: Don Slutz <address@hidden>
---
target-i386/kvm.c | 12 +++++++-----
1 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 8462c75..f8a5177 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -389,16 +389,18 @@ int kvm_arch_init_vcpu(CPUX86State *env)
c = &cpuid_data.entries[cpuid_i++];
memset(c, 0, sizeof(*c));
c->function = KVM_CPUID_SIGNATURE;
- if (!env->cpuid_hv_level_set) {
+ if (!env->cpuid_hv_level_set && !env->cpuid_hv_vendor_set) {
memcpy(signature, "KVMKVMKVM\0\0\0", 12);
c->eax = 0;
+ c->ebx = signature[0];
+ c->ecx = signature[1];
+ c->edx = signature[2];
} else {
- memcpy(signature, "Microsoft Hv", 12);
c->eax = env->cpuid_hv_level;
+ c->ebx = env->cpuid_hv_vendor1;
+ c->ecx = env->cpuid_hv_vendor2;
+ c->edx = env->cpuid_hv_vendor3;
}
- c->ebx = signature[0];
- c->ecx = signature[1];
- c->edx = signature[2];
c = &cpuid_data.entries[cpuid_i++];
memset(c, 0, sizeof(*c));
--
1.7.1
- [Qemu-devel] [PATCH v5 01/17] target-i386: Allow tsc-frequency to be larger then 2.147G, (continued)
- [Qemu-devel] [PATCH v5 01/17] target-i386: Allow tsc-frequency to be larger then 2.147G, Don Slutz, 2012/09/21
- [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 <=
- [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, 2012/09/21
- [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