linux/drivers/crypto/ccp/sev-dev.h
Mario Limonciello 1c5c1daf04 crypto: ccp - Move some PSP mailbox bit definitions into common header
Some of the bits and fields used for mailboxes communicating with the
PSP are common across all mailbox implementations (SEV, TEE, etc).

Move these bits into the common `linux/psp.h` so they don't need to
be re-defined for each implementation.

Acked-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-03-17 11:16:43 +08:00

64 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* AMD Platform Security Processor (PSP) interface driver
*
* Copyright (C) 2017-2019 Advanced Micro Devices, Inc.
*
* Author: Brijesh Singh <brijesh.singh@amd.com>
*/
#ifndef __SEV_DEV_H__
#define __SEV_DEV_H__
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/dmapool.h>
#include <linux/hw_random.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/irqreturn.h>
#include <linux/dmaengine.h>
#include <linux/psp-sev.h>
#include <linux/miscdevice.h>
#include <linux/capability.h>
#define SEV_CMDRESP_CMD GENMASK(26, 16)
#define SEV_CMD_COMPLETE BIT(1)
#define SEV_CMDRESP_IOC BIT(0)
struct sev_misc_dev {
struct kref refcount;
struct miscdevice misc;
};
struct sev_device {
struct device *dev;
struct psp_device *psp;
void __iomem *io_regs;
struct sev_vdata *vdata;
int state;
unsigned int int_rcvd;
wait_queue_head_t int_queue;
struct sev_misc_dev *misc;
u8 api_major;
u8 api_minor;
u8 build;
void *cmd_buf;
};
int sev_dev_init(struct psp_device *psp);
void sev_dev_destroy(struct psp_device *psp);
void sev_pci_init(void);
void sev_pci_exit(void);
#endif /* __SEV_DEV_H */