From e76779339ba9c3d56f1a39ff0bfb1dfe7614b062 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 11 May 2011 08:30:51 -0400 Subject: [PATCH] KVM: Document KVM_GET_LAPIC, KVM_SET_LAPIC ioctl Signed-off-by: Avi Kivity Signed-off-by: Marcelo Tosatti --- Documentation/virtual/kvm/api.txt | 32 +++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) 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 -- 2.20.1