diff options
| author | Brijesh Singh <brijesh.singh@amd.com> | 2017-12-04 10:57:28 -0600 |
|---|---|---|
| committer | Brijesh Singh <brijesh.singh@amd.com> | 2017-12-04 10:57:28 -0600 |
| commit | 200664d5237f3f8cd2a2f9f5c5dea08502336bd1 (patch) | |
| tree | 2dc118d62b71285a84640e74bd7775864425cd2f /drivers/crypto/ccp/sp-dev.c | |
| parent | 2a6170dfe755b167ca8d6bba2e73695f08b37c54 (diff) | |
crypto: ccp: Add Secure Encrypted Virtualization (SEV) command support
AMD's new Secure Encrypted Virtualization (SEV) feature allows the
memory contents of virtual machines to be transparently encrypted with a
key unique to the VM. The programming and management of the encryption
keys are handled by the AMD Secure Processor (AMD-SP) which exposes the
commands for these tasks. The complete spec is available at:
http://support.amd.com/TechDocs/55766_SEV-KM%20API_Specification.pdf
Extend the AMD-SP driver to provide the following support:
- an in-kernel API to communicate with the SEV firmware. The API can be
used by the hypervisor to create encryption context for a SEV guest.
- a userspace IOCTL to manage the platform certificates.
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
Improvements-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Diffstat (limited to 'drivers/crypto/ccp/sp-dev.c')
| -rw-r--r-- | drivers/crypto/ccp/sp-dev.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/sp-dev.c b/drivers/crypto/ccp/sp-dev.c index cf101c039c8f..eb0da6572720 100644 --- a/drivers/crypto/ccp/sp-dev.c +++ b/drivers/crypto/ccp/sp-dev.c @@ -272,6 +272,10 @@ static int __init sp_mod_init(void) if (ret) return ret; +#ifdef CONFIG_CRYPTO_DEV_SP_PSP + psp_pci_init(); +#endif + return 0; #endif @@ -291,6 +295,11 @@ static int __init sp_mod_init(void) static void __exit sp_mod_exit(void) { #ifdef CONFIG_X86 + +#ifdef CONFIG_CRYPTO_DEV_SP_PSP + psp_pci_exit(); +#endif + sp_pci_exit(); #endif |