mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-08 05:34:29 +08:00
2a6170dfe7
The Platform Security Processor (PSP) is part of the AMD Secure Processor (AMD-SP) functionality. The PSP is a dedicated processor that provides support for key management commands in Secure Encrypted Virtualization (SEV) mode, along with software-based Trusted Execution Environment (TEE) to enable third-party trusted applications. Note that the key management functionality provided by the SEV firmware can be used outside of the kvm-amd driver hence it doesn't need to depend on CONFIG_KVM_AMD. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: Borislav Petkov <bp@suse.de> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Gary Hook <gary.hook@amd.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: linux-crypto@vger.kernel.org Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Improvements-by: Borislav Petkov <bp@suse.de> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Reviewed-by: Borislav Petkov <bp@suse.de>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
|
|
* AMD Platform Security Processor (PSP) interface driver
|
|
*
|
|
* Copyright (C) 2017 Advanced Micro Devices, Inc.
|
|
*
|
|
* Author: Brijesh Singh <brijesh.singh@amd.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __PSP_DEV_H__
|
|
#define __PSP_DEV_H__
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/pci.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 "sp-dev.h"
|
|
|
|
#define PSP_P2CMSG_INTEN 0x0110
|
|
#define PSP_P2CMSG_INTSTS 0x0114
|
|
|
|
#define PSP_C2PMSG_ATTR_0 0x0118
|
|
#define PSP_C2PMSG_ATTR_1 0x011c
|
|
#define PSP_C2PMSG_ATTR_2 0x0120
|
|
#define PSP_C2PMSG_ATTR_3 0x0124
|
|
#define PSP_P2CMSG_ATTR_0 0x0128
|
|
|
|
#define PSP_CMDRESP_CMD_SHIFT 16
|
|
#define PSP_CMDRESP_IOC BIT(0)
|
|
#define PSP_CMDRESP_RESP BIT(31)
|
|
#define PSP_CMDRESP_ERR_MASK 0xffff
|
|
|
|
#define MAX_PSP_NAME_LEN 16
|
|
|
|
struct psp_device {
|
|
struct list_head entry;
|
|
|
|
struct psp_vdata *vdata;
|
|
char name[MAX_PSP_NAME_LEN];
|
|
|
|
struct device *dev;
|
|
struct sp_device *sp;
|
|
|
|
void __iomem *io_regs;
|
|
};
|
|
|
|
#endif /* __PSP_DEV_H */
|