Commit 77f65327 authored Dec 04, 2017 by Brijesh Singh

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>

parent 4d84b726

drivers/crypto/ccp/psp-dev.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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;