mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-09 19:10:45 +01:00
Rijo Thomas
6eb0cc72bc
PSP can support both SEV and TEE interface. Therefore, move SEV specific registers to a dedicated data structure. TEE interface specific registers will be added in a later patch. Cc: Ard Biesheuvel <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Jens Wiklander <[email protected]> Co-developed-by: Devaraj Rangasamy <[email protected]> Signed-off-by: Devaraj Rangasamy <[email protected]> Signed-off-by: Rijo Thomas <[email protected]> Acked-by: Gary R Hook <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* AMD Platform Security Processor (PSP) interface driver
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*
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* Copyright (C) 2017-2019 Advanced Micro Devices, Inc.
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*
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* Author: Brijesh Singh <[email protected]>
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*/
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#ifndef __SEV_DEV_H__
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#define __SEV_DEV_H__
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#include <linux/device.h>
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/wait.h>
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#include <linux/dmapool.h>
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#include <linux/hw_random.h>
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#include <linux/bitops.h>
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#include <linux/interrupt.h>
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#include <linux/irqreturn.h>
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#include <linux/dmaengine.h>
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#include <linux/psp-sev.h>
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#include <linux/miscdevice.h>
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#include <linux/capability.h>
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#define SEV_CMD_COMPLETE BIT(1)
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#define SEV_CMDRESP_CMD_SHIFT 16
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#define SEV_CMDRESP_IOC BIT(0)
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struct sev_misc_dev {
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struct kref refcount;
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struct miscdevice misc;
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};
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struct sev_device {
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struct device *dev;
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struct psp_device *psp;
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void __iomem *io_regs;
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struct sev_vdata *vdata;
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int state;
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unsigned int int_rcvd;
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wait_queue_head_t int_queue;
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struct sev_misc_dev *misc;
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struct sev_user_data_status status_cmd_buf;
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struct sev_data_init init_cmd_buf;
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u8 api_major;
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u8 api_minor;
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u8 build;
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};
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int sev_dev_init(struct psp_device *psp);
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void sev_dev_destroy(struct psp_device *psp);
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void sev_pci_init(void);
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void sev_pci_exit(void);
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#endif /* __SEV_DEV_H */
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