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crypto: ccp: Implement SEV_PDH_GEN ioctl command

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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>
This commit is contained in:
Brijesh Singh 2017-12-04 10:57:30 -06:00
parent 4d84b726be
commit 77f6532722
1 changed files with 3 additions and 0 deletions
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3
drivers/crypto/ccp/psp-dev.c
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@ -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;