80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
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/*
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* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __UAPI_LINUX_NVHV_WDT_HANDLER_IOCTL_H
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#define __UAPI_LINUX_NVHV_WDT_HANDLER_IOCTL_H
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#if !defined(__KERNEL__)
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#define __user
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#endif
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/* This matches what is defined in server, if server side
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* changes, this has to be changed
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*/
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#define MAX_GUESTS_NUM 16
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#define HV_GUEST_IOCTL_MAGIC 'X'
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/* Get the state of all the guest VMs */
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#define TEGRA_HV_WDT_H_GET_STATE _IOR(HV_GUEST_IOCTL_MAGIC, 0x00, \
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struct hv_wdt_h_state_array)
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/* Send command to Monitor about Guest VM action taken */
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#define TEGRA_HV_WDT_H_CMD _IOW(HV_GUEST_IOCTL_MAGIC, 0x01, \
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struct tegra_hv_wdt_h_cmd_array)
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enum tegra_hv_wdt_h_cmd_id {
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/* Application has handled the guest vm expiry synchronously */
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MESSAGE_HANDLED_SYNC,
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/* Application has handled the guest vm expiry asynchronously */
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MESSAGE_HANDLED_ASYNC,
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};
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enum tegra_hv_wdt_h_state_id {
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/* This is default state or monitor, This state is also reached once
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* app updates driver about ASYNC or SYNC recovery triggered for Guest
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*/
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GUEST_STATE_INIT,
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/* This is state, once monitor updates driver about GUEST WDT expiry */
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GUEST_STATE_TIMER_EXPIRED,
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/* Waiting for action from Application */
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GUEST_STATE_WAIT_FOR_ACK,
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};
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struct hv_wdt_h_state_array {
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/* State of each guest, use enum tegra_hv_wdt_h_state_id */
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__u32 guest_state[MAX_GUESTS_NUM];
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};
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struct tegra_hv_wdt_h_cmd {
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/* VMID for which command is expected */
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__u32 vmid;
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/* Command for the VMID, use tegra_hv_wdt_h_cmd_id */
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__u32 command;
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};
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struct tegra_hv_wdt_h_cmd_array {
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/* Number of vmids for which commands is to be issued */
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__u32 num_vmids;
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/* VMID and command to be issued, only first num_vmids will be used from
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* below array
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*/
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struct tegra_hv_wdt_h_cmd commands[MAX_GUESTS_NUM];
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};
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#endif
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