mirror of https://gitee.com/openkylin/qemu.git
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/*
|
|
* 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
|