include: add psp-sev.h header file

The header file provide the ioctl command and structure to communicate
with /dev/sev device.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>

diff --git a/linux-headers/linux/psp-sev.h b/linux-headers/linux/psp-sev.h
new file mode 100644 (file)
index 0000000..33e2474
--- /dev/null
+++ b/linux-headers/linux/psp-sev.h
@@ -0,0 +1,142 @@
+/*
+ * 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,
+};
+
+/**
+ * SEV Firmware status code
+ */
+typedef enum {
+       SEV_RET_SUCCESS = 0,
+       SEV_RET_INVALID_PLATFORM_STATE,
+       SEV_RET_INVALID_GUEST_STATE,
+       SEV_RET_INAVLID_CONFIG,
+       SEV_RET_INVALID_LEN,
+       SEV_RET_ALREADY_OWNED,
+       SEV_RET_INVALID_CERTIFICATE,
+       SEV_RET_POLICY_FAILURE,
+       SEV_RET_INACTIVE,
+       SEV_RET_INVALID_ADDRESS,
+       SEV_RET_BAD_SIGNATURE,
+       SEV_RET_BAD_MEASUREMENT,
+       SEV_RET_ASID_OWNED,
+       SEV_RET_INVALID_ASID,
+       SEV_RET_WBINVD_REQUIRED,
+       SEV_RET_DFFLUSH_REQUIRED,
+       SEV_RET_INVALID_GUEST,
+       SEV_RET_INVALID_COMMAND,
+       SEV_RET_ACTIVE,
+       SEV_RET_HWSEV_RET_PLATFORM,
+       SEV_RET_HWSEV_RET_UNSAFE,
+       SEV_RET_UNSUPPORTED,
+       SEV_RET_MAX,
+} sev_ret_code;
+
+/**
+ * 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 */
+} __attribute__((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 */
+} __attribute__((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 */
+} __attribute__((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 */
+} __attribute__((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 */
+} __attribute__((packed));
+
+#define SEV_IOC_TYPE           'S'
+#define SEV_ISSUE_CMD  _IOWR(SEV_IOC_TYPE, 0x0, struct sev_issue_cmd)
+
+#endif /* __PSP_USER_SEV_H */

diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 97671723b25b001ef77c76e1b38f60b22b8a3357..e1524179366417b5ae3c8dcb6954b237f6347ae0 100755 (executable)
--- a/scripts/update-linux-headers.sh
+++ b/scripts/update-linux-headers.sh
@@ -121,7 +121,7 @@ done
 rm -rf "$output/linux-headers/linux"
 mkdir -p "$output/linux-headers/linux"
 for header in kvm.h kvm_para.h vfio.h vfio_ccw.h vhost.h \
-              psci.h userfaultfd.h; do
+              psci.h psp-sev.h userfaultfd.h; do
     cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
 done
 rm -rf "$output/linux-headers/asm-generic"