cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tpm_ibmvtpm.h (1810B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) 2012 IBM Corporation
      4 *
      5 * Author: Ashley Lai <ashleydlai@gmail.com>
      6 *
      7 * Maintained by: <tpmdd-devel@lists.sourceforge.net>
      8 *
      9 * Device driver for TCG/TCPA TPM (trusted platform module).
     10 * Specifications at www.trustedcomputinggroup.org
     11 */
     12
     13#ifndef __TPM_IBMVTPM_H__
     14#define __TPM_IBMVTPM_H__
     15
     16/* vTPM Message Format 1 */
     17struct ibmvtpm_crq {
     18	u8 valid;
     19	u8 msg;
     20	__be16 len;
     21	__be32 data;
     22	__be64 reserved;
     23} __attribute__((packed, aligned(8)));
     24
     25struct ibmvtpm_crq_queue {
     26	struct ibmvtpm_crq *crq_addr;
     27	u32 index;
     28	u32 num_entry;
     29	wait_queue_head_t wq;
     30};
     31
     32struct ibmvtpm_dev {
     33	struct device *dev;
     34	struct vio_dev *vdev;
     35	struct ibmvtpm_crq_queue crq_queue;
     36	dma_addr_t crq_dma_handle;
     37	u32 rtce_size;
     38	void __iomem *rtce_buf;
     39	dma_addr_t rtce_dma_handle;
     40	spinlock_t rtce_lock;
     41	wait_queue_head_t wq;
     42	u16 res_len;
     43	u32 vtpm_version;
     44	u8 tpm_processing_cmd;
     45};
     46
     47#define CRQ_RES_BUF_SIZE	PAGE_SIZE
     48
     49/* Initialize CRQ */
     50#define INIT_CRQ_CMD		0xC001000000000000LL /* Init cmd */
     51#define INIT_CRQ_COMP_CMD	0xC002000000000000LL /* Init complete cmd */
     52#define INIT_CRQ_RES		0x01	/* Init respond */
     53#define INIT_CRQ_COMP_RES	0x02	/* Init complete respond */
     54#define VALID_INIT_CRQ		0xC0	/* Valid command for init crq */
     55
     56/* vTPM CRQ response is the message type | 0x80 */
     57#define VTPM_MSG_RES		0x80
     58#define IBMVTPM_VALID_CMD	0x80
     59
     60/* vTPM CRQ message types */
     61#define VTPM_GET_VERSION			0x01
     62#define VTPM_GET_VERSION_RES			(0x01 | VTPM_MSG_RES)
     63
     64#define VTPM_TPM_COMMAND			0x02
     65#define VTPM_TPM_COMMAND_RES			(0x02 | VTPM_MSG_RES)
     66
     67#define VTPM_GET_RTCE_BUFFER_SIZE		0x03
     68#define VTPM_GET_RTCE_BUFFER_SIZE_RES		(0x03 | VTPM_MSG_RES)
     69
     70#define VTPM_PREPARE_TO_SUSPEND			0x04
     71#define VTPM_PREPARE_TO_SUSPEND_RES		(0x04 | VTPM_MSG_RES)
     72
     73#endif