KVM: SEV: Select KVM_GENERIC_PRIVATE_MEM when CONFIG_KVM_AMD_SEV=y

SEV-SNP relies on private memory support to run guests, so make sure to
enable that support via the CONFIG_KVM_GENERIC_PRIVATE_MEM config
option.

Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-ID: <20240501085210.2213060-4-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/Kconfig

@@ -136,6 +136,7 @@ config KVM_AMD_SEV
 	depends on KVM_AMD && X86_64
 	depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m)
 	select ARCH_HAS_CC_PLATFORM
+	select KVM_GENERIC_PRIVATE_MEM
 	help
 	  Provides support for launching Encrypted VMs (SEV) and Encrypted VMs
 	  with Encrypted State (SEV-ES) on AMD processors.