diff options
| author | Janakarajan Natarajan <Janakarajan.Natarajan@amd.com> | 2018-05-25 15:23:30 -0500 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-05-31 00:13:56 +0800 |
| commit | 0b3a830bb407dce79468a26f382260131b50b3c5 (patch) | |
| tree | a43a58577ae49858080dbdf66512fcb97af642fe /include | |
| parent | edd303ff0e9ebc39118e633916278b5ca8558c30 (diff) | |
crypto: ccp - Add GET_ID SEV command
The GET_ID command, added as of SEV API v0.16, allows the SEV firmware
to be queried about a unique CPU ID. This unique ID can then be used
to obtain the public certificate containing the Chip Endorsement Key
(CEK) public key signed by the AMD SEV Signing Key (ASK).
For more information please refer to "Section 5.12 GET_ID" of
https://support.amd.com/TechDocs/55766_SEV-KM%20API_Specification.pdf
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/psp-sev.h | 11 | ||||
| -rw-r--r-- | include/uapi/linux/psp-sev.h | 12 |
2 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index 1d2496246072..827c601841c4 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -55,6 +55,7 @@ enum sev_cmd { SEV_CMD_PDH_GEN = 0x009, SEV_CMD_DF_FLUSH = 0x00A, SEV_CMD_DOWNLOAD_FIRMWARE = 0x00B, + SEV_CMD_GET_ID = 0x00C, /* Guest commands */ SEV_CMD_DECOMMISSION = 0x020, @@ -142,6 +143,16 @@ struct sev_data_download_firmware { } __packed; /** + * struct sev_data_get_id - GET_ID command parameters + * + * @address: physical address of region to place unique CPU ID(s) + * @len: len of the region + */ +struct sev_data_get_id { + u64 address; /* In */ + u32 len; /* In/Out */ +} __packed; +/** * struct sev_data_pdh_cert_export - PDH_CERT_EXPORT command parameters * * @pdh_address: PDH certificate address diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h index 9008f31c7eb6..ac8c60bcc83b 100644 --- a/include/uapi/linux/psp-sev.h +++ b/include/uapi/linux/psp-sev.h @@ -30,6 +30,7 @@ enum { SEV_PDH_GEN, SEV_PDH_CERT_EXPORT, SEV_PEK_CERT_IMPORT, + SEV_GET_ID, SEV_MAX, }; @@ -124,6 +125,17 @@ struct sev_user_data_pdh_cert_export { } __packed; /** + * struct sev_user_data_get_id - GET_ID command parameters + * + * @socket1: Buffer to pass unique ID of first socket + * @socket2: Buffer to pass unique ID of second socket + */ +struct sev_user_data_get_id { + __u8 socket1[64]; /* Out */ + __u8 socket2[64]; /* Out */ +} __packed; + +/** * struct sev_issue_cmd - SEV ioctl parameters * * @cmd: SEV commands to execute |