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authorBrijesh Singh <brijesh.singh@amd.com>2017-12-04 10:57:30 -0600
committerBrijesh Singh <brijesh.singh@amd.com>2017-12-04 10:57:30 -0600
commit77f65327228f001bf1a43eb09dc96bbdba5b4eac (patch)
tree9c8fa2ddffabe280e291d947d0b3e1bcc247b732 /drivers
parent4d84b726be834d4991b94fd51df66ec299b66d45 (diff)
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crypto: ccp: Implement SEV_PDH_GEN ioctl command
The SEV_PDH_GEN command is used to re-generate the Platform Diffie-Hellman (PDH) key. 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 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/crypto/ccp/psp-dev.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c
index 8aa8036023e0..fd3daf0a1176 100644
--- a/drivers/crypto/ccp/psp-dev.c
+++ b/drivers/crypto/ccp/psp-dev.c
@@ -333,6 +333,9 @@ static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg)
case SEV_PEK_GEN:
ret = sev_ioctl_do_pek_pdh_gen(SEV_CMD_PEK_GEN, &input);
break;
+ case SEV_PDH_GEN:
+ ret = sev_ioctl_do_pek_pdh_gen(SEV_CMD_PDH_GEN, &input);
+ break;
default:
ret = -EINVAL;
goto out;