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KVM: Document KVM_GET_LAPIC, KVM_SET_LAPIC ioctl

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Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Avi Kivity 2011-05-11 08:30:51 -04:00
parent 4dd1b49c6d
commit e76779339b
1 changed files with 32 additions and 0 deletions
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32
Documentation/virtual/kvm/api.txt
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@ -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