Re: [PATCH v2] x86/kvm/Kconfig: Ensure CRYPTO_DEV_CCP_DD state at minimum matches KVM_AMD

From: Brijesh Singh
Date: Mon Jul 02 2018 - 12:34:35 EST

On 06/27/2018 11:30 AM, Janakarajan Natarajan wrote:
Prevent a config where KVM_AMD=y and CRYPTO_DEV_CCP_DD=m thereby ensuring
that AMD Secure Processor device driver will be built-in when KVM_AMD is
also built-in.

* Removed usage of 'imply' Kconfig option.
* Change patch commit message.

Fixes: 505c9e94d832 ("KVM: x86: prefer "depends on" to "select" for SEV")

Cc: <stable@xxxxxxxxxxxxxxx> # 4.16.x
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@xxxxxxx>

Reviewed-by: Brijesh Singh <brijesh.singh@xxxxxxx>

arch/x86/kvm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 92fd433..1bbec38 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -85,7 +85,7 @@ config KVM_AMD_SEV
def_bool y
bool "AMD Secure Encrypted Virtualization (SEV) support"
depends on KVM_AMD && X86_64
+ depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m)
Provides support for launching Encrypted VMs on AMD processors.