KVM: X86: Add CONFIG_KVM_AMD_SEV

The config option can be used to enable SEV support on AMD Processors.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86@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>

diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 3df51c2..148ea32 100644 (file)
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -81,6 +81,16 @@ config KVM_AMD
          To compile this as a module, choose M here: the module
          will be called kvm-amd.
 
+config KVM_AMD_SEV
+       def_bool y
+       bool "AMD Secure Encrypted Virtualization (SEV) support"
+       depends on KVM_AMD && X86_64
+       select CRYPTO_DEV_CCP
+       select CRYPTO_DEV_CCP_DD
+       select CRYPTO_DEV_SP_PSP
+       ---help---
+       Provides support for launching Encrypted VMs on AMD processors.
+
 config KVM_MMU_AUDIT
        bool "Audit KVM MMU"
        depends on KVM && TRACEPOINTS