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    SubjectRe: [Part2 PATCH v6 10/38] crypto: ccp: Define SEV userspace ioctl and command id
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    On 10/19/2017 09:33 PM, Brijesh Singh wrote:
    > 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>

    Acked-by: Gary R Hook <gary.hook@amd.com>

    > ---
    > 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 */
    >

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