crypto: ccp: Implement SEV_PDH_GEN ioctl command

Web:        https://git.kernel.org/torvalds/c/77f65327228f001bf1a43eb09dc96bbdba5b4eac
Commit:     77f65327228f001bf1a43eb09dc96bbdba5b4eac
Parent:     4d84b726be834d4991b94fd51df66ec299b66d45
Refname:    refs/heads/master
Author:     Brijesh Singh <[email protected]>
AuthorDate: Mon Dec 4 10:57:30 2017 -0600
Committer:  Brijesh Singh <[email protected]>
CommitDate: Mon Dec 4 10:57:30 2017 -0600

    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 <[email protected]>
    Cc: "Radim Krčmář" <[email protected]>
    Cc: Borislav Petkov <[email protected]>
    Cc: Herbert Xu <[email protected]>
    Cc: Gary Hook <[email protected]>
    Cc: Tom Lendacky <[email protected]>
    Cc: [email protected]
    Cc: [email protected]
    Cc: [email protected]
    Signed-off-by: Brijesh Singh <[email protected]>
    Reviewed-by: Borislav Petkov <[email protected]>
    Acked-by: Gary R Hook <[email protected]>
---
 drivers/crypto/ccp/psp-dev.c | 3 +++
 1 file changed, 3 insertions(+)

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;
--
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