commit 853c110982eaff0d99dace3f66f1ba58b5bfd9d5
author Paolo Bonzini <pbonzini@redhat.com> Tue Oct 09 18:35:29 2018 +0200
committer Paolo Bonzini <pbonzini@redhat.com> Tue Oct 09 18:38:42 2018 +0200
tree cb694c46802482ccc83ba2e37c7ba5e99969594c
parent cc906f07d7d569a30bb6f0baf8f80b2968353dc9

KVM: x86: support CONFIG_KVM_AMD=y with CONFIG_CRYPTO_DEV_CCP_DD=m

SEV requires access to the AMD cryptographic device APIs, and this
does not work when KVM is builtin and the crypto driver is a module.
Actually the Kconfig conditions for CONFIG_KVM_AMD_SEV try to disable
SEV in that case, but it does not work because the actual crypto
calls are not culled, only sev_hardware_setup() is.

This patch adds two CONFIG_KVM_AMD_SEV checks that gate all the remaining
SEV code; it fixes this particular configuration, and drops 5 KiB of
code when CONFIG_KVM_AMD_SEV=n.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>