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    Subject[Part2 PATCH v6 10/38] crypto: ccp: Define SEV userspace ioctl and command id
    Date
    Add a include file which defines the ioctl and command id used for
    issuing SEV platform management specific commands.

    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>
    ---
    include/uapi/linux/psp-sev.h | 113 +++++++++++++++++++++++++++++++++++++++++++
    1 file changed, 113 insertions(+)
    create mode 100644 include/uapi/linux/psp-sev.h

    diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h
    new file mode 100644
    index 000000000000..1dd98ba4ff22
    --- /dev/null
    +++ b/include/uapi/linux/psp-sev.h
    @@ -0,0 +1,113 @@
    +/*
    + * Userspace interface for AMD Secure Encrypted Virtualization (SEV)
    + * platform management commands.
    + *
    + * Copyright (C) 2016-2017 Advanced Micro Devices, Inc.
    + *
    + * Author: Brijesh Singh <brijesh.singh@amd.com>
    + *
    + * SEV spec 0.14 is available at:
    + * http://support.amd.com/TechDocs/55766_SEV-KM%20API_Specification.pdf
    + *
    + * 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_SEV_USER_H__
    +#define __PSP_SEV_USER_H__
    +
    +#include <linux/types.h>
    +
    +/**
    + * SEV platform commands
    + */
    +enum {
    + SEV_FACTORY_RESET = 0,
    + SEV_PLATFORM_STATUS,
    + SEV_PEK_GEN,
    + SEV_PEK_CSR,
    + SEV_PDH_GEN,
    + SEV_PDH_CERT_EXPORT,
    + SEV_PEK_CERT_IMPORT,
    +
    + SEV_MAX,
    +};
    +
    +/**
    + * struct sev_user_data_status - PLATFORM_STATUS command parameters
    + *
    + * @major: major API version
    + * @minor: minor API version
    + * @state: platform state
    + * @flags: platform config flags
    + * @build: firmware build id for API version
    + * @guest_count: number of active guests
    + */
    +struct sev_user_data_status {
    + __u8 api_major; /* Out */
    + __u8 api_minor; /* Out */
    + __u8 state; /* Out */
    + __u32 flags; /* Out */
    + __u8 build; /* Out */
    + __u32 guest_count; /* Out */
    +} __packed;
    +
    +/**
    + * struct sev_user_data_pek_csr - PEK_CSR command parameters
    + *
    + * @address: PEK certificate chain
    + * @length: length of certificate
    + */
    +struct sev_user_data_pek_csr {
    + __u64 address; /* In */
    + __u32 length; /* In/Out */
    +} __packed;
    +
    +/**
    + * struct sev_user_data_cert_import - PEK_CERT_IMPORT command parameters
    + *
    + * @pek_address: PEK certificate chain
    + * @pek_len: length of PEK certificate
    + * @oca_address: OCA certificate chain
    + * @oca_len: length of OCA certificate
    + */
    +struct sev_user_data_pek_cert_import {
    + __u64 pek_cert_address; /* In */
    + __u32 pek_cert_len; /* In */
    + __u64 oca_cert_address; /* In */
    + __u32 oca_cert_len; /* In */
    +} __packed;
    +
    +/**
    + * struct sev_user_data_pdh_cert_export - PDH_CERT_EXPORT command parameters
    + *
    + * @pdh_address: PDH certificate address
    + * @pdh_len: length of PDH certificate
    + * @cert_chain_address: PDH certificate chain
    + * @cert_chain_len: length of PDH certificate chain
    + */
    +struct sev_user_data_pdh_cert_export {
    + __u64 pdh_cert_address; /* In */
    + __u32 pdh_cert_len; /* In/Out */
    + __u64 cert_chain_address; /* In */
    + __u32 cert_chain_len; /* In/Out */
    +} __packed;
    +
    +/**
    + * struct sev_issue_cmd - SEV ioctl parameters
    + *
    + * @cmd: SEV commands to execute
    + * @opaque: pointer to the command structure
    + * @error: SEV FW return code on failure
    + */
    +struct sev_issue_cmd {
    + __u32 cmd; /* In */
    + __u64 data; /* In */
    + __u32 error; /* Out */
    +} __packed;
    +
    +#define SEV_IOC_TYPE 'S'
    +#define SEV_ISSUE_CMD _IOWR(SEV_IOC_TYPE, 0x0, struct sev_issue_cmd)
    +
    +#endif /* __PSP_USER_SEV_H */
    --
    2.9.5
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