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| author | Avi Kivity <avi@redhat.com> | 2011-05-11 08:30:51 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 11:44:55 +0300 |
| commit | e76779339ba9c3d56f1a39ff0bfb1dfe7614b062 (patch) | |
| tree | e741478a0dba0f6a0887155e9b0f1b08a58b86e7 /Documentation/virtual/kvm/api.txt | |
| parent | 4dd1b49c6d215dc41ce50c80b4868388b93f31a3 (diff) | |
| download | lwn-e76779339ba9c3d56f1a39ff0bfb1dfe7614b062.tar.gz lwn-e76779339ba9c3d56f1a39ff0bfb1dfe7614b062.zip | |
KVM: Document KVM_GET_LAPIC, KVM_SET_LAPIC ioctl
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'Documentation/virtual/kvm/api.txt')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 42542eb802ca..67cc0f5b9974 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1291,6 +1291,38 @@ Returns the tsc frequency of the guest. The unit of the return value is KHz. If the host has unstable tsc this ioctl returns -EIO instead as an error. +4.56 KVM_GET_LAPIC + +Capability: KVM_CAP_IRQCHIP +Architectures: x86 +Type: vcpu ioctl +Parameters: struct kvm_lapic_state (out) +Returns: 0 on success, -1 on error + +#define KVM_APIC_REG_SIZE 0x400 +struct kvm_lapic_state { + char regs[KVM_APIC_REG_SIZE]; +}; + +Reads the Local APIC registers and copies them into the input argument. The +data format and layout are the same as documented in the architecture manual. + +4.57 KVM_SET_LAPIC + +Capability: KVM_CAP_IRQCHIP +Architectures: x86 +Type: vcpu ioctl +Parameters: struct kvm_lapic_state (in) +Returns: 0 on success, -1 on error + +#define KVM_APIC_REG_SIZE 0x400 +struct kvm_lapic_state { + char regs[KVM_APIC_REG_SIZE]; +}; + +Copies the input argument into the the Local APIC registers. The data format +and layout are the same as documented in the architecture manual. + 5. The kvm_run structure Application code obtains a pointer to the kvm_run structure by |