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| author | Anton Arapov <anton@redhat.com> | 2012-08-07 11:21:50 +0200 |
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| committer | Anton Arapov <anton@redhat.com> | 2012-08-07 12:52:25 +0200 |
| commit | 1d44b6f3fcf6058fb7c960b7558766967e8028f7 (patch) | |
| tree | 53d88547c973ba048d233091a3f91f3173ad01df /Documentation/virtual/kvm/cpuid.txt | |
| parent | d91eda5d7b0383e6a0c83e0146ff141ff3b1355b (diff) | |
| download | kernel-uprobes-1d44b6f3fcf6058fb7c960b7558766967e8028f7.tar.gz kernel-uprobes-1d44b6f3fcf6058fb7c960b7558766967e8028f7.tar.xz kernel-uprobes-1d44b6f3fcf6058fb7c960b7558766967e8028f7.zip | |
fedora kernel: 222b075b3ff0d9e88aa9353e3c80667756ed7361v3.5.0-4
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'Documentation/virtual/kvm/cpuid.txt')
| -rw-r--r-- | Documentation/virtual/kvm/cpuid.txt | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/virtual/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt index 882068538c9..83afe65d496 100644 --- a/Documentation/virtual/kvm/cpuid.txt +++ b/Documentation/virtual/kvm/cpuid.txt @@ -10,11 +10,15 @@ a guest. KVM cpuid functions are: function: KVM_CPUID_SIGNATURE (0x40000000) -returns : eax = 0, +returns : eax = 0x40000001, ebx = 0x4b4d564b, ecx = 0x564b4d56, edx = 0x4d. Note that this value in ebx, ecx and edx corresponds to the string "KVMKVMKVM". +The value in eax corresponds to the maximum cpuid function present in this leaf, +and will be updated if more functions are added in the future. +Note also that old hosts set eax value to 0x0. This should +be interpreted as if the value was 0x40000001. This function queries the presence of KVM cpuid leafs. |