KVM: Document KVM_GET_LAPIC, KVM_SET_LAPIC ioctl (e7677933) · Commits · e / devices / android_kernel_fairphone_FP4

Documentation/virtual/kvm/api.txt

+32 −0

Original line number	Diff line number	Diff line
		@@ -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