Commit 9ef1530c authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: SVM: fix compilation with modular PSP and non-modular KVM 



Use svm_sev_enabled() in order to cull all calls to PSP code.  Otherwise,
compilation fails with undefined symbols if the PSP device driver is compiled
as a module and KVM is not.

Reported-by: default avatarUros Bizjak <ubizjak@gmail.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent dbef2808

arch/x86/kvm/svm/sev.c

+4 −1
Original line number Diff line number Diff line
@@ -1117,7 +1117,7 @@ int __init sev_hardware_setup(void) 
	/* Maximum number of encrypted guests supported simultaneously */

	max_sev_asid = cpuid_ecx(0x8000001F);



	if (!max_sev_asid)

	if (!svm_sev_enabled())

		return 1;



	/* Minimum ASID value that should be used for SEV guest */
@@ -1156,6 +1156,9 @@ int __init sev_hardware_setup(void) 


void sev_hardware_teardown(void)

{

	if (!svm_sev_enabled())

		return;



	bitmap_free(sev_asid_bitmap);

	bitmap_free(sev_reclaim_asid_bitmap);