cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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arm-powerctl.h (3035B)

      1/*
      2 * QEMU support -- ARM Power Control specific functions.
      3 *
      4 * Copyright (c) 2016 Jean-Christophe Dubois
      5 *
      6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
      7 * See the COPYING file in the top-level directory.
      8 *
      9 */
     10
     11#ifndef QEMU_ARM_POWERCTL_H
     12#define QEMU_ARM_POWERCTL_H
     13
     14#include "kvm-consts.h"
     15
     16#define QEMU_ARM_POWERCTL_RET_SUCCESS QEMU_PSCI_RET_SUCCESS
     17#define QEMU_ARM_POWERCTL_INVALID_PARAM QEMU_PSCI_RET_INVALID_PARAMS
     18#define QEMU_ARM_POWERCTL_ALREADY_ON QEMU_PSCI_RET_ALREADY_ON
     19#define QEMU_ARM_POWERCTL_IS_OFF QEMU_PSCI_RET_DENIED
     20#define QEMU_ARM_POWERCTL_ON_PENDING QEMU_PSCI_RET_ON_PENDING
     21
     22/*
     23 * arm_get_cpu_by_id:
     24 * @cpuid: the id of the CPU we want to retrieve the state
     25 *
     26 * Retrieve a CPUState object from its CPU ID provided in @cpuid.
     27 *
     28 * Returns: a pointer to the CPUState structure of the requested CPU.
     29 */
     30CPUState *arm_get_cpu_by_id(uint64_t cpuid);
     31
     32/*
     33 * arm_set_cpu_on:
     34 * @cpuid: the id of the CPU we want to start/wake up.
     35 * @entry: the address the CPU shall start from.
     36 * @context_id: the value to put in r0/x0.
     37 * @target_el: The desired exception level.
     38 * @target_aa64: 1 if the requested mode is AArch64. 0 otherwise.
     39 *
     40 * Start the cpu designated by @cpuid in @target_el exception level. The mode
     41 * shall be AArch64 if @target_aa64 is set to 1. Otherwise the mode is
     42 * AArch32. The CPU shall start at @entry with @context_id in r0/x0.
     43 *
     44 * Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
     45 * QEMU_ARM_POWERCTL_INVALID_PARAM if bad parameters are provided.
     46 * QEMU_ARM_POWERCTL_ALREADY_ON if the CPU was already started.
     47 * QEMU_ARM_POWERCTL_ON_PENDING if the CPU is still powering up
     48 */
     49int arm_set_cpu_on(uint64_t cpuid, uint64_t entry, uint64_t context_id,
     50                   uint32_t target_el, bool target_aa64);
     51
     52/*
     53 * arm_set_cpu_off:
     54 * @cpuid: the id of the CPU we want to stop/shut down.
     55 *
     56 * Stop the cpu designated by @cpuid.
     57 *
     58 * Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
     59 * QEMU_ARM_POWERCTL_INVALID_PARAM if bad parameters are provided.
     60 * QEMU_ARM_POWERCTL_IS_OFF if CPU is already off
     61 */
     62
     63int arm_set_cpu_off(uint64_t cpuid);
     64
     65/*
     66 * arm_reset_cpu:
     67 * @cpuid: the id of the CPU we want to reset.
     68 *
     69 * Reset the cpu designated by @cpuid.
     70 *
     71 * Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
     72 * QEMU_ARM_POWERCTL_INVALID_PARAM if bad parameters are provided.
     73 * QEMU_ARM_POWERCTL_IS_OFF if CPU is off
     74 */
     75int arm_reset_cpu(uint64_t cpuid);
     76
     77/*
     78 * arm_set_cpu_on_and_reset:
     79 * @cpuid: the id of the CPU we want to star
     80 *
     81 * Start the cpu designated by @cpuid and put it through its normal
     82 * CPU reset process. The CPU will start in the way it is architected
     83 * to start after a power-on reset.
     84 *
     85 * Returns: QEMU_ARM_POWERCTL_RET_SUCCESS on success.
     86 * QEMU_ARM_POWERCTL_INVALID_PARAM if there is no CPU with that ID.
     87 * QEMU_ARM_POWERCTL_ALREADY_ON if the CPU is already on.
     88 * QEMU_ARM_POWERCTL_ON_PENDING if the CPU is already partway through
     89 * powering on.
     90 */
     91int arm_set_cpu_on_and_reset(uint64_t cpuid);
     92
     93#endif