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| author | Brijesh Singh <brijesh.singh@amd.com> | 2017-12-04 10:57:30 -0600 |
|---|---|---|
| committer | Brijesh Singh <brijesh.singh@amd.com> | 2017-12-04 10:57:30 -0600 |
| commit | 4d84b726be834d4991b94fd51df66ec299b66d45 (patch) | |
| tree | 488364c01c1db09a012c95fe7fb9c13e632ed3e0 /drivers/crypto/ccp | |
| parent | efe1829b1a8fb7a8e69791141b8c8f6291708863 (diff) | |
| download | linux-4d84b726be834d4991b94fd51df66ec299b66d45.tar.gz linux-4d84b726be834d4991b94fd51df66ec299b66d45.tar.bz2 linux-4d84b726be834d4991b94fd51df66ec299b66d45.zip | |
crypto: ccp: Implement SEV_PEK_GEN ioctl command
The SEV_PEK_GEN command is used to generate a new Platform Endorsement
Key (PEK). The command is defined in SEV spec section 5.6.
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
Reviewed-by: Borislav Petkov <bp@suse.de>
Improvements-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Acked-by: Gary R Hook <gary.hook@amd.com>
Diffstat (limited to 'drivers/crypto/ccp')
| -rw-r--r-- | drivers/crypto/ccp/psp-dev.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index a5072b166ab8..8aa8036023e0 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -289,6 +289,19 @@ static int sev_ioctl_do_platform_status(struct sev_issue_cmd *argp) return ret; } +static int sev_ioctl_do_pek_pdh_gen(int cmd, struct sev_issue_cmd *argp) +{ + int rc; + + if (psp_master->sev_state == SEV_STATE_UNINIT) { + rc = __sev_platform_init_locked(&argp->error); + if (rc) + return rc; + } + + return __sev_do_cmd_locked(cmd, 0, &argp->error); +} + static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) { void __user *argp = (void __user *)arg; @@ -317,6 +330,9 @@ static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) case SEV_PLATFORM_STATUS: ret = sev_ioctl_do_platform_status(&input); break; + case SEV_PEK_GEN: + ret = sev_ioctl_do_pek_pdh_gen(SEV_CMD_PEK_GEN, &input); + break; default: ret = -EINVAL; goto out; |