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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