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/*
* QEMU KVM support -- ARM specific functions.
*
* Copyright (c) 2012 Linaro Limited
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef QEMU_KVM_ARM_H
#define QEMU_KVM_ARM_H
#include "sysemu/kvm.h"
#include "exec/memory.h"
/**
* kvm_arm_register_device:
* @mr: memory region for this device
* @devid: the KVM device ID
*
* Remember the memory region @mr, and when it is mapped by the
* machine model, tell the kernel that base address using the
* KVM_SET_DEVICE_ADDRESS ioctl. @devid should be the ID of
* the device as defined by KVM_SET_DEVICE_ADDRESS.
* The machine model may map and unmap the device multiple times;
* the kernel will only be told the final address at the point
* where machine init is complete.
*/
void kvm_arm_register_device(MemoryRegion *mr, uint64_t devid);
/**
* write_list_to_kvmstate:
* @cpu: ARMCPU
*
* For each register listed in the ARMCPU cpreg_indexes list, write
* its value from the cpreg_values list into the kernel (via ioctl).
* This updates KVM's working data structures from TCG data or
* from incoming migration state.
*
* Returns: true if all register values were updated correctly,
* false if some register was unknown to the kernel or could not
* be written (eg constant register with the wrong value).
* Note that we do not stop early on failure -- we will attempt
* writing all registers in the list.
*/
bool write_list_to_kvmstate(ARMCPU *cpu);
/**
* write_kvmstate_to_list:
* @cpu: ARMCPU
*
* For each register listed in the ARMCPU cpreg_indexes list, write
* its value from the kernel into the cpreg_values list. This is used to
* copy info from KVM's working data structures into TCG or
* for outbound migration.
*
* Returns: true if all register values were read correctly,
* false if some register was unknown or could not be read.
* Note that we do not stop early on failure -- we will attempt
* reading all registers in the list.
*/
bool write_kvmstate_to_list(ARMCPU *cpu);
#endif
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