mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/*
|
|
* QEMU support -- ARM Power Control specific functions.
|
|
*
|
|
* Copyright (c) 2016 Jean-Christophe Dubois
|
|
*
|
|
* 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_ARM_POWERCTL_H
|
|
#define QEMU_ARM_POWERCTL_H
|
|
|
|
#include "kvm-consts.h"
|
|
|
|
#define QEMU_ARM_POWERCTL_RET_SUCCESS QEMU_PSCI_RET_SUCCESS
|
|
#define QEMU_ARM_POWERCTL_INVALID_PARAM QEMU_PSCI_RET_INVALID_PARAMS
|
|
#define QEMU_ARM_POWERCTL_ALREADY_ON QEMU_PSCI_RET_ALREADY_ON
|
|
#define QEMU_ARM_POWERCTL_IS_OFF QEMU_PSCI_RET_DENIED
|
|
#define QEMU_ARM_POWERCTL_ON_PENDING QEMU_PSCI_RET_ON_PENDING
|
|
|
|
/*
|
|
* arm_get_cpu_by_id:
|
|
* @cpuid: the id of the CPU we want to retrieve the state
|
|
*
|
|
* Retrieve a CPUState object from its CPU ID provided in @cpuid.
|
|
*
|
|
* Returns: a pointer to the CPUState structure of the requested CPU.
|
|
*/
|
|
CPUState *arm_get_cpu_by_id(uint64_t cpuid);
|
|
|
|
/*
|
|
* arm_set_cpu_on:
|
|
* @cpuid: the id of the CPU we want to start/wake up.
|
|
* @entry: the address the CPU shall start from.
|
|
* @context_id: the value to put in r0/x0.
|
|
* @target_el: The desired exception level.
|
|
* @target_aa64: 1 if the requested mode is AArch64. 0 otherwise.
|
|
*
|
|
* Start the cpu designated by @cpuid in @target_el exception level. The mode
|
|
* shall be AArch64 if @target_aa64 is set to 1. Otherwise the mode is
|
|
* AArch32. The CPU shall start at @entry with @context_id in r0/x0.
|
|
*
|
|
* Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
|
|
* QEMU_ARM_POWERCTL_INVALID_PARAM if bad parameters are provided.
|
|
* QEMU_ARM_POWERCTL_ALREADY_ON if the CPU was already started.
|
|
* QEMU_ARM_POWERCTL_ON_PENDING if the CPU is still powering up
|
|
*/
|
|
int arm_set_cpu_on(uint64_t cpuid, uint64_t entry, uint64_t context_id,
|
|
uint32_t target_el, bool target_aa64);
|
|
|
|
/*
|
|
* arm_set_cpu_off:
|
|
* @cpuid: the id of the CPU we want to stop/shut down.
|
|
*
|
|
* Stop the cpu designated by @cpuid.
|
|
*
|
|
* Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
|
|
* QEMU_ARM_POWERCTL_INVALID_PARAM if bad parameters are provided.
|
|
* QEMU_ARM_POWERCTL_IS_OFF if CPU is already off
|
|
*/
|
|
|
|
int arm_set_cpu_off(uint64_t cpuid);
|
|
|
|
/*
|
|
* arm_reset_cpu:
|
|
* @cpuid: the id of the CPU we want to reset.
|
|
*
|
|
* Reset the cpu designated by @cpuid.
|
|
*
|
|
* Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
|
|
* QEMU_ARM_POWERCTL_INVALID_PARAM if bad parameters are provided.
|
|
* QEMU_ARM_POWERCTL_IS_OFF if CPU is off
|
|
*/
|
|
int arm_reset_cpu(uint64_t cpuid);
|
|
|
|
/*
|
|
* arm_set_cpu_on_and_reset:
|
|
* @cpuid: the id of the CPU we want to star
|
|
*
|
|
* Start the cpu designated by @cpuid and put it through its normal
|
|
* CPU reset process. The CPU will start in the way it is architected
|
|
* to start after a power-on reset.
|
|
*
|
|
* Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
|
|
* QEMU_ARM_POWERCTL_INVALID_PARAM if there is no CPU with that ID.
|
|
* QEMU_ARM_POWERCTL_ALREADY_ON if the CPU is already on.
|
|
* QEMU_ARM_POWERCTL_ON_PENDING if the CPU is already partway through
|
|
* powering on.
|
|
*/
|
|
int arm_set_cpu_on_and_reset(uint64_t cpuid);
|
|
|
|
#endif
|